2023 Cadillac Lyriq
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Cadillac › Lyriq › 2023
These records cover every 2023 Cadillac Lyriq. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
6 recalls name the 2023 Cadillac Lyriq. Newest first.
General Motors, LLC (GM) is recalling certain 2023 – 2024 model year Cadillac Lyriq vehicles. The driver video display may go blank while driving.
Risk and remedy
Risk
A blank video display can result in a loss of critical safety information, such as the speedometer, warning lights, and rearview camera image, increasing the risk of a crash.
Remedy
The video display control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters are expected to be mailed July 14, 2025. Owners may contact Cadillac customer service at 1-800-333-4223. GM's number for this recall is N252500680.
General Motors LLC (GM) is recalling certain 2023-2025 Cadillac LYRIQ vehicles. The left or right front stabilizer bar bracket bolts may have been improperly tightened, which can allow the bolts to loosen and separate from the vehicle frame. A detached stabilizer bar or bracket can damage the vehicle's high voltage cables or EV battery coolant lines.
Risk and remedy
Risk
Damaged cables or coolant lines can result in a vehicle shutdown, causing a loss of drive power and increasing the risk of a crash.
Remedy
Dealers will inspect and tighten the left and/or right stabilizer bar bracket bolts, as necessary, free of charge. Owner notification letters were mailed May 8, 2025. Owners may contact Cadilac customer service at 1-800-333-4223. GM's number for this recall is N252494190.
General Motors, LLC (GM) is recalling certain 2023-2024 Cadillac LYRIQ all-wheel drive vehicles. The anti-lock brake system (ABS) may activate unexpectedly and release brake pressure in the vehicle's service brake system.
Risk and remedy
Risk
A release of brake pressure can cause a loss of braking ability, increasing the risk of a crash.
Remedy
The electronic brake control module software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed September 3, 2024. Owners may contact Cadillac's customer service at 1-800-458-8006 or EV Concierge at 1-844-EV-CADILLAC (1-844-382-2345). GM's number for this recall is N242453471.
General Motors, LLC (GM) is recalling certain 2023-2024 LYRIQ vehicles. The bracket that anchors the left-rear and center-rear seat belts may have been improperly welded to the seat frame.
Risk and remedy
Risk
An improperly welded seat belt bracket may not restrain an occupant as intended, increasing their risk of injury during a crash.
Remedy
Owners are advised not to use the left-rear and center-rear seating positions until the recall repair is completed. Dealers will replace the rear seat cushion frame, free of charge. Owner notification letters were mailed January 17, 2024. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N232425220.
General Motors, LLC (GM) is recalling certain 2023 Cadillac LYRIQ vehicles. The body control module (BCM) may have been updated with incorrectly calibrated software and fail to make the pedestrian warning sounds.
Risk and remedy
Risk
Without external warning sounds, pedestrians may be unaware of an approaching vehicle, increasing the risk of a crash.
Remedy
Dealers will reprogram the BCM, free of charge. Owner notification letters were mailed November 14, 2023. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N232422960.
General Motors, LLC (GM) is recalling certain 2022 GMC Hummer EV and 2023 Cadillac Lyriq vehicles. Certain connections within the high-voltage battery pack may be out of position or incorrectly welded, which can cause a loss of drive power.
Risk and remedy
Risk
A loss of drive power can increase the risk of a crash.
Remedy
Dealers will inspect and, if necessary, replace the high-voltage battery pack, free of charge. Letters explaining the safety risk were sent to owners January 5, 2024. Owner notification letters were mailed June 6, 2023. Owners may contact GM's Cadillac customer service at 1-800-458-8006 and the EV Concierge number: 1-833-HUMMER-EV (1-833-486-6373). GM's number for this recall is N232404441.
Owner complaints
22 complaints2 involved a crash1 injuries
What owners report most
Latest complaints
- Back over prevention › Rearview system braking · Back over prevention › Warnings
Backing out of driveway and screen went black and a collision occurred a second or two later. We have had the Lyriq in the shop multiple times for glitchy screens and screen going black but never has been fully resolved. I did recieve a recall letter (unfortunately I threw it away) but now it…
Backing out of driveway and screen went black and a collision occurred a second or two later. We have had the Lyriq in the shop multiple times for glitchy screens and screen going black but never has been fully resolved. I did recieve a recall letter (unfortunately I threw it away) but now it shows no recalls (strange). This black screen issue has been a problem since day 1 but now it has resulted in a collision. I have been unable to even back my car out of the garage when raining due to the sensitivity of the collision detect so there is NO excuse that it didn't alert. Cadillac has had the car since the accident and claim nothing is wrong with it and they are not responsible. I do not believe that. I have met with dealership GM who is looking into this further. I wanted to bring to the NTSB as this is 100% a safety concern. Thank God there wasn't a child on a bike or a baby in a stroller behind us. This didn't result in any human harm but the vehicle sustained damage that I believe was the direct result of malfunctioning technology on the car to prevent it.
- Exterior lighting · Visibility/wiper
The gauge cluster/infotainment screen dims automatically when the light sensor on the dash senses the environment has gotten darker. The problem is that this happens extremely early at dusk/dark hours when it's still fairly bright outside, and the brightness of the screen is too dim to see things…
The gauge cluster/infotainment screen dims automatically when the light sensor on the dash senses the environment has gotten darker. The problem is that this happens extremely early at dusk/dark hours when it's still fairly bright outside, and the brightness of the screen is too dim to see things clearly. Also, once this automatic dimming happens, there is no way to turn the brightness back up. This feature also CANNOT be disabled in the settings anywhere. This results in a safety issue where the screen is not sufficiently visible at times when the auto dimming (which is also tied to the automatic headlights) kicks in for the screen.
- Exterior lighting
During dusk and dawn conditions, the vehicle dims the dashboard lighting to the point that everything is very difficult to see. They are diming the displays when the exterior lighting conditions are still too bright for the very dim display. I have owned many GM vehicles with this type of automatic…
During dusk and dawn conditions, the vehicle dims the dashboard lighting to the point that everything is very difficult to see. They are diming the displays when the exterior lighting conditions are still too bright for the very dim display. I have owned many GM vehicles with this type of automatic diming and this is the ONLY vehicle that has this problem. There is NO user fix available. This is a safety problem and GM needs to be forced to provide a fix. Many owners complain about this problem and there is no fix available from dealers.
- Electrical system
The entire left portion of the screen became inoperable and remained a black screen despite attempts to reset the system. The left side of the screen contains information such as gear selection, speedometer, lane keep assist, and many other important information. There is no other way to see what…
The entire left portion of the screen became inoperable and remained a black screen despite attempts to reset the system. The left side of the screen contains information such as gear selection, speedometer, lane keep assist, and many other important information. There is no other way to see what speed you are going besides this screen. Several others in my cadillac lyriq facebook group have experienced this issue, it is a major safety concern and needs to be addressed immediately before someone gets hurt from this.
- Forward collision avoidance › Automatic emergency braking · Forward collision avoidance › Warnings
Weather was dry. Time was 5:30 PM - still sunlit. Driving down the interstate, 70 MPH in the middle lane of a three lane highway. Super Cruise is active, no cars in front of me within 500+ feet. I MAY recall a partially blown tire in the lane to my left. All of a sudden, car brakes and slows…
Weather was dry. Time was 5:30 PM - still sunlit. Driving down the interstate, 70 MPH in the middle lane of a three lane highway. Super Cruise is active, no cars in front of me within 500+ feet. I MAY recall a partially blown tire in the lane to my left. All of a sudden, car brakes and slows abruptly to about to about 40MPH. I can not recall of brakes were active but my car was configured for "one pedal driving" so when the accelerator was disengaged, the brake is applied. "Service Driver Assist" warning comes on. The service driver assist icon on the dashboard remained yellow. The next morning, the service driver assist icon was gone.
- Back over prevention › Rearview system braking · Forward collision avoidance › Automatic emergency braking
Vehicle is automatically braking at low speeds when there is no reason to do so. It is as if the vehicle thinks something is there but there is nothing there
- Exterior lighting
While transitioning to day to night, the instrument panel dims prematurely making the content very hard to see. This includes all indicators such as speed, turn signals, and other gauges and possible fault indications. This happens prior to dusk, when there is still plenty of daylight remaining.…
While transitioning to day to night, the instrument panel dims prematurely making the content very hard to see. This includes all indicators such as speed, turn signals, and other gauges and possible fault indications. This happens prior to dusk, when there is still plenty of daylight remaining. The headlights come on (this is fine), but the display dims to full night mode at the same time also. Although the instrument display night illumination level is adjustable with the dimmer switch, even at maximum setting the instrument panel cannot be well seen. Once the sun fully sets, the display visibility for night viewing is fine. The same issue occurs at the night to day transition. The display stays dim much too long into dawn, again presenting visibility issue of the controls and gauges during this time. This problem is not isolated to just my particular vehicle. When the vehicle was in the shop for various repairs, loaner Lyriq's provided exhibit the same issue. Both 2023 and 2024 model year, over various trims.
- Exterior lighting
The Lyriq, as well as all current GM vehicles, use an icon on their instrument panel for indicating headlights are on that is incorrect. They use the symbol for parking lights rather than the symbol for low beam headlights on their instrument panel display. This is especially confusing because…
The Lyriq, as well as all current GM vehicles, use an icon on their instrument panel for indicating headlights are on that is incorrect. They use the symbol for parking lights rather than the symbol for low beam headlights on their instrument panel display. This is especially confusing because their own digital menu to turn on lights correctly shows the low beam headlights symbol for headlights, and the parking lights symbol for parking lights. However, turning on low beam headlights shows a parking lights indicator in the dashboard, and turning on the parking lights shows no indicator in the dashboard. It's my belief that, to help ensure no driver misunderstands what the symbols are indicating, that GM should have all vehicles properly use the low beam symbol for a dashboard indicator to show headlights, just like other vehicles use, rather than the parking lights indicator which is incorrect (both inconsistent with US convention, (as well as inconsistent with their own menu in the Lyriq specifically) to turn these lights on.
- Air bags · Service brakes · Steering
Driving on connecter road between 2 freeways at 35-40 mph because of traffic. Suddenly the car veers to left on its own and hits concrete lane guiding wall damaging the left front of the car. Next tried to brake and they didn't work. Unable to steer the car it heads to the right and up on the…
Driving on connecter road between 2 freeways at 35-40 mph because of traffic. Suddenly the car veers to left on its own and hits concrete lane guiding wall damaging the left front of the car. Next tried to brake and they didn't work. Unable to steer the car it heads to the right and up on the rocks decorating of the road. Car goes another 25 or more feet before stopping due to rocks slowing down the car. The air-bags never deployed. Tried to contact SOS button but didn't work. Next contacted ONSTAR but they were no help and didn't show that an accident occurred and said call 911 which was done. Ever since the purchase of this EV car have been having trouble with it. The Emergency light (red car on dashboard) lit up and went to dealer who kept the car over a week. Green car worked for a while but occasionally turned red. Went to dealer again. Also, one day the steering wheel would not work until tried several time to restart the car. Dealer managed to break the steering wheel and repaired it. They also cracked the glass on the computer screen but denied they did it. Was planning to enact the Lemon Law on the car. Car now in repair shop. VELLOCITY COLLISION CENTER, 8765 LINDELL RD STE 100, LAS VEGAS, NV 89139 TEL 7028971320. Called GM Cadillac to inform them of information on accident. They said they would report this to the engineers there and report back to me. That was right after the accident but they have never tried to contact me.
- Service brakes
The 2023 Lyriq has 3 selections on the touch screen menu for the level of regenerative braking. They are: 1. Off 2. Low 3. High (I did not go out to my car to see exact wording) The serious issue is that, without notice to the driver, the setting can be reset to "Off". This must be a programming…
The 2023 Lyriq has 3 selections on the touch screen menu for the level of regenerative braking. They are: 1. Off 2. Low 3. High (I did not go out to my car to see exact wording) The serious issue is that, without notice to the driver, the setting can be reset to "Off". This must be a programming error or bug, but what is dangerous is expecting regenerative braking and NOTHING happens. You are forced to reset the level of regenerative braking. At a random interval, the setting will again RESET. This should get IMMEDIATE attention at GM's Lyriq design center.
- Electrical system · Fuel/propulsion system · Power train
The 12 volt battery of my 2023 Lyriq died even though the main battery was at 79% charge. The car had sat unused for three days. The 12 volt battery controls the opening of doors, charging ports, and all other accessories. I was effectively locked out of my car without warning. The only way in…
The 12 volt battery of my 2023 Lyriq died even though the main battery was at 79% charge. The car had sat unused for three days. The 12 volt battery controls the opening of doors, charging ports, and all other accessories. I was effectively locked out of my car without warning. The only way in the car is by using the key in the keyfob and crawling through the trunk. GM has known about this issue, but has not informed owners that this could happen and what to do. They believe it is from an installation of an over the air update stalling, but cannot prove that is definitively the issue. As a woman, I rely on my vehicle to be a place of safety and find it completely unacceptable to be locked out of my car in any public setting. I live in an urban area and have had to rely on my car as a place of refuge from people that I do not feel safe around. Having a jumper from the main propulsion battery to ensure that the doors still work should be integrated and customers alerted at a minimum. I'd rather sit inside a dead car and wait for help, than be stuck outside it or crawling through my trunk.
- Fuel/propulsion system
I was in a left hand turn lane. When I started to make the turn my vehicle lurched and stopped. I tried several times to go and this behavior repeated. Onstar called me (or I called them). They called 911 for me and a fire truck was dispatched to help me. I was in the intersection and afraid to try…
I was in a left hand turn lane. When I started to make the turn my vehicle lurched and stopped. I tried several times to go and this behavior repeated. Onstar called me (or I called them). They called 911 for me and a fire truck was dispatched to help me. I was in the intersection and afraid to try anything else until the fire truck arrived to control the traffic so I could be moved from the intersection. When they arrived I was able to put the vehicle in drive and drive it out of the intersection and then home. When I got home, I had Onstar run a diagnostic and there was an error code for the high voltage battery. I had previously reported to my dealer that I was getting alerts to service the high voltage battery (on the myCadillac app). They were unable to find a problem. No crash happened this time, but if it occurred when I was in front of oncoming traffic then a crash may have occurred.
- Exterior lighting
Headlights droop over time driven which can severely limit forward vision. The limited vision forward at highway speeds certainly reduces safety. This is an intermittent problem that I can find no real pattern except that the longer you drive at night, the more likely the problem will surface. The…
Headlights droop over time driven which can severely limit forward vision. The limited vision forward at highway speeds certainly reduces safety. This is an intermittent problem that I can find no real pattern except that the longer you drive at night, the more likely the problem will surface. The problem has been confirmed and headlights replaced by at least three dealerships I first noticed the problem about 6 weeks after purchase because we do not drive much at night. [XXX] Also of interest is a surprising number of headlight assemblies for the Cadillac Lyriq are for sale on Ebay even though only a few thousand cars have been delivered. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Service brakes
Cadillac Lyriq Brake System failed, two type of brakes failed. One pedal driving automatically turned off, stopped working and normal breaking system stopped working, once breaks pressed it felt super hard like a ton of pressure/air was going through and brakes didn't work. Dash Board showed signs…
Cadillac Lyriq Brake System failed, two type of brakes failed. One pedal driving automatically turned off, stopped working and normal breaking system stopped working, once breaks pressed it felt super hard like a ton of pressure/air was going through and brakes didn't work. Dash Board showed signs of: small car swerving sign, ABS sign, Brake sign with two cars crashing and an alert saying "Brake System Failure" This almost caused a multiple car crash. Dealer has the car and no detail give as of now. No police, insurance involved No prior issues.
- Exterior lighting · Forward collision avoidance › Automatic emergency braking · Power train
Manufacturer has replaced and recalibrated headlights on 2 occasions however they will not maintain aim on road. This is consistent and as of now besides the repairs performed they do not know how to rectify this. Additionally in the rain or moving from a shadow to sunlight the rear cross traffic…
Manufacturer has replaced and recalibrated headlights on 2 occasions however they will not maintain aim on road. This is consistent and as of now besides the repairs performed they do not know how to rectify this. Additionally in the rain or moving from a shadow to sunlight the rear cross traffic alert will trigger if enabled on vehicle causing emergency braking for no reason. it will continue to happen until turned off and car restarted. The car has been towed on 3 occasions in the first 4000 miles for complete loss of power. Dealer solution to remove 12v battery and reinstall same battery to clear elcectrical codes however problem keeps occurring.
- Electrical system › Adas › Autonomous/self driving · Forward collision avoidance › Adaptive cruise control
The contact owns a 2023 Cadillac Lyriq. The contact stated while driving 30 MPH, the surround vision feature failed to detect nearby objects. The contact stated that the Autonomous Self Driving warning and the Forward Collision Avoidance Adaptive Cruise Control warning lights were illuminated. The…
The contact owns a 2023 Cadillac Lyriq. The contact stated while driving 30 MPH, the surround vision feature failed to detect nearby objects. The contact stated that the Autonomous Self Driving warning and the Forward Collision Avoidance Adaptive Cruise Control warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA Campaign Number: 22V710000 (Electrical System), but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 3,100.
- Unknown or other
Rear view camera system display (360 surround) was completely inoperative. Rear view camera display did not appear on IP display when vehicle was shifted into reverse, nor did it appear when the "camera" app was selected from the center display. No warning messages present; OnStar remote code read…
Rear view camera system display (360 surround) was completely inoperative. Rear view camera display did not appear on IP display when vehicle was shifted into reverse, nor did it appear when the "camera" app was selected from the center display. No warning messages present; OnStar remote code read indicated no codes. Danger is to others behind the vehicle, particularly children in blind spot. Problem persisted over several trips until I disconnected and reconnected the vehicle's 12 volt battery, and now everything is working correctly. Did not take vehicle to dealer now that everything is working; suspect software issue cleared by "vehicle reboot"
- Exterior lighting
Low beam headlights have very poor throw which degrades while driving. After driving the vehicle for 30 minutes, both left and right headlights point downward and do not throw light down the road. Cutoff is steep, with light only going about one car length. The fault is variable and somewhat…
Low beam headlights have very poor throw which degrades while driving. After driving the vehicle for 30 minutes, both left and right headlights point downward and do not throw light down the road. Cutoff is steep, with light only going about one car length. The fault is variable and somewhat random, with sometimes just one headlight drooping. The car must be driven for this to happen - does not occur when sitting flat or idle. The amount of droop varies also (confirmed by placing various pieces of tape on garage wall, and checking headlight position before and after a trip). Although the magnitude of droop is variable, nearly any trip will cause at least some amount of misalignment. When the fault is severe, even the high beams do not function well - just illuminating a very bright spot directly in front of the vehicle - and not down the road. Vehicle has electronic motorized leveling system for the headlights. The headlights go through some sort of automatic adjustment process when the vehicle is turned on. When the fault has occurred, turning the vehicle off and then on temporarily corrects the issue. Of course, this is not possible to do while driving. Driving at night in this vehicle is hazardous with this behavior. Numerous other Debut Edition and 2023 model year owners are experiencing this issue - not an isolated occurrence.
- Exterior lighting
When the vehicle first starts, the headlights go through some sort of leveling routine and the light spread seems to illuminate a reasonable distance ahead of the vehicle. However, over as short as a few minutes of driving, the headlight seems to droop significantly and can result in only a very…
When the vehicle first starts, the headlights go through some sort of leveling routine and the light spread seems to illuminate a reasonable distance ahead of the vehicle. However, over as short as a few minutes of driving, the headlight seems to droop significantly and can result in only a very short section of road being illuminated ahead of the vehicle. This makes it very dangerous to drive at night as not enough of the road is illuminated ahead of the vehicle. The headlight throw pattern is not always uniform and there may appear to be something like a notch in the light pattern. This does not seem related to adaptive forward lighting as I do not see an active change in the light pattern based on driving.
- Exterior lighting
The aim of the headlight beams droops over time to dangerous low level where the headlings barely light beyond 30 feet. The highlights would re-level and re-adjust the aim at restart, but they would start drooping to dangerous low level within 10 mins of driving.
- Exterior lighting
Low beam headlights work appropriately for 5 or so minutes before "drooping" or "sagging" so that they only illuminate one car length or so in front of the vehicle. Upon shutting off and restarting the vehicle, the lights return to correct illumination. However, they somehow droop again and…
Low beam headlights work appropriately for 5 or so minutes before "drooping" or "sagging" so that they only illuminate one car length or so in front of the vehicle. Upon shutting off and restarting the vehicle, the lights return to correct illumination. However, they somehow droop again and within 5-10 minutes, it is not safe to drive the vehicle on low-beam headlights. It is the equivalent of having only fog lights on. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Electrical system · Unknown or other
1) The car locked owners out and disabled any authorization from any of the owners key fob. It is missing features. 2) It is missing the rearview mirror camera. 3) Also, it states there is supposed to be a key entry next to the rear camera on the liftgate door, it is not there, there is just a hole.
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- Electronic Brake Module Component Failure
On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM…
On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is opening this Engineering Analysis to further assess the safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
- Electronic Brake Module Component Failure
On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM…
On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is upgrading this Preliminary Evaluation to an Engineering Analysis, EA26006, to gain further understanding ofthe safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11012020This Preliminary information communicates ordering process for the frontand reardrive units are onrestriction for all listed EV vehicles for engineering review.
- 11012017This Preliminary information communicates the request that engineering it looking to get data from these vehiclesbefore any work is being performed.
- 11012001This Preliminary information communicates to dealership technicians that if they encounter a vehicle with this issue, they can contact TCSC to have the software for the MDI backdated to communicate properly.
- 11011996This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.
- 11011961This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.
- 11011944This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.
- 11011896This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
- 11011885This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed overthe air update.
- 11011872This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
- 11011868This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.
- 11011860This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
- 11011857This Preliminary information communicatesDiagnostic Tips When Having Difficulties Programming Or Adding Key Fobs / Transmitters.
- 11011805This Preliminary information communicates a GM part number forreflective high temperature heat or insulating tape when repairing wiring harnesses.
- 11011709This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11011694This Preliminary information communicates Thus the active safety systems maybe inoperable and to perform a module reset to correct.
- 11011693This Preliminary information communicates how to recover the Image Processing Module.
- 11011688This Preliminary information communicates to the technicians that GM is aware of this issue and are root causing the concern. Once a solution is available, the PI will be updated to reflect the new direction.
- 11011485This Preliminary information communicates the possibility of a resetting of some information modules prior to delivery.
- 11011480This Preliminary information communicates to check the drivers monitoring camera for a B1DD0 SYM57or B0126 SYM82setting with no other DTCs.
- 11011476This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed overthe air update.
- 11011475This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
- 11011472This Preliminary information communicates how to move U018B from Current to History.
- 11011465This Preliminary information communicates to dealership technicians that if they encounter a vehicle with this issue, they can contact TCSC to have the software for the MDI backdated to communicate properly.
- 11011453This Preliminary information communicates thethe active safety features and/or camerasare inoperative or unavailable after a12 volt battery replacement or battery charge after a low voltage condition.
- 11011452This Preliminary information communicates the request that engineering it looking to get data from these vehiclesbefore any work is being performed.
- 11011446This Preliminary information communicates that a Service Theft Alarm message may display and to check the P18 Door Lock Status Indicator operation.
- 11011440This Preliminary information communicates procedure to relearn window motor when it reverses when expressing up.
- 11011434This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
- 11011416This Preliminary information communicates to GM technicians to not replace any parts at this time if they come across this concern to reset the radio at this time. This PI will be updated for the service fix once available.
- 11011406This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
- 11011359This Preliminary information communicates ordering process for the frontand reardrive units are onrestriction for all listed EV vehicles for engineering review.
- 11011353This Preliminary information communicates dignostics tips for P0534 codes on 2024Blazer EV and 2023 and 2024 Lyriq as well as 2024 Equinox EV
- 11011218This Preliminary information communicates dignostics tips for P0534 codes on 2024Blazer EV and 2023 and 2024 Lyriq as well as 2024 Equinox EV
- 11011213This Preliminary information communicates that the Charge Port Door auto close after unplugging the charger feature was turned off to prevent the dust cover breaking the charge port door.
- 11011212This Preliminary information communicates to dealership technicians that if they encounter a vehicle with this communication issue, they can contact TCSC to have the software for the MDI backdated to communicate properly.
- 11011193Service Update. On certain vehicles, while Super Cruise is engaged, DTC B19F2 (steering wheel touch sensor fault) could occur. Dealers will replace the steering wheel.
- 11011188This Preliminary Information communicates that, under certain conditions, a MIL (Malfunction Indicator Lamp) illumination or a "Service High Voltage" message may display on the IPC (Instrument Panel Cluster), and the 12V battery may experience discharge. In these instances, it is advised to perform BECM (Battery Energy Control Module) programming and execute the Manual Reset Shunt process. This applies when ALLof the following DTCs are set as current or history: P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, and U35AF.
- 11011157This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
- 11011122This service bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac LYRIQ, Chevrolet Blazer EV, Equinox EV and Corvette E-Ray.
- 11010729This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.
Every Cadillac Lyriq model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.