2018 Hyundai Ioniq Hybrid

Recalls

2 recalls name the 2018 Hyundai Ioniq Hybrid. Newest first.

• Hybrid propulsion system › Inverter

  Jun 28, 2022NHTSA 22V45900010,575 vehicles

  Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Ioniq HEV and Ionic PHV vehicles previously recalled under recall number 18V-704. The Power Relay Assembly (PRA) located underneath the rear seat may overheat.

  Risk and remedy

  Risk

  An overheated PRA increases the risk of a fire.

  Remedy

  Dealers will inspect and replace the main relay or PRA, as necessary, free of charge. Owner notification letters were mailed August 23, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 232. This recall replaces NHTSA recall number 18V-704. Vehicles already repaired under the previous recall will need to have the new remedy completed.

  Full recall details →

• Hybrid propulsion system › Inverter

  Oct 5, 2018NHTSA 18V70400010,575 vehicles

  Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.

  Risk and remedy

  Risk

  The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.

  Remedy

  Hyundai will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced. These repairs will be performed free of charge. The recall began February 28, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 178.

  Full recall details →

Owner complaints

What owners report most

1. Engine3
2. Unknown or other3
3. Power train3
4. Electrical system3
5. Vehicle speed control2
6. Visibility/wiper1
7. Service brakes1
8. Steering1
9. Air bags1

Latest complaints

• Nov 25, 2025CA
  Engine
  My 2018 Hyundai Ioniq Hybrid has a safety-critical transmission defect. The vehicle slips violently from 1st to 2nd gear, loses acceleration, and causes unpredictable hesitation. This creates a danger when merging onto highways or crossing intersections. Hyundai refused goodwill assistance, denied…

  My 2018 Hyundai Ioniq Hybrid has a safety-critical transmission defect. The vehicle slips violently from 1st to 2nd gear, loses acceleration, and causes unpredictable hesitation. This creates a danger when merging onto highways or crossing intersections. Hyundai refused goodwill assistance, denied escalation, and directed me to BBB Auto Line, but BBB does not accept 2018 vehicles. This defect matches known DCT failures in Hyundai hybrid models and presents a significant safety risk, especially when transporting my two young children ( we lost mother during the childbirth .

• Nov 25, 2024FL85,000 miCrash2 injuries
  Air bags
  The contact owned a 2018 Hyundai Ioniq Hybrid. The contact stated while driving 75 MPH with her aunt in the front passenger's side seat, another vehicle suddenly merged into the contact's lane, causing the passenger's side of the vehicle to crash into the driver's side of the other vehicle. The…

  The contact owned a 2018 Hyundai Ioniq Hybrid. The contact stated while driving 75 MPH with her aunt in the front passenger's side seat, another vehicle suddenly merged into the contact's lane, causing the passenger's side of the vehicle to crash into the driver's side of the other vehicle. The vehicle then veered into a ditch on the right side of the road. The air bags failed to deploy. There was no warning light illuminated. The contact and her aunt exited the vehicle through the rear doors because the front doors were blocked by the bushes. The contact sustained pain in the right knee and ankle. The contact's aunt sustained pain in the right knee. The ambulance transported both passengers to the hospital, where they were informed that no other injuries were found. A police report was filed, but the contact did not have the police report information available. The vehicle was towed and totaled by the insurance company. The dealer was notified of the failure. The manufacturer was notified of the failure and a case was opened; however, the case was later closed. The failure mileage was approximately 85,000.

• Oct 11, 2024TX
  Power train
  The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request. My safety and the risk of others were compromised by the constant jerking and sputtering, of the gears that took place during vehicle operation. My acceleration…

  The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request. My safety and the risk of others were compromised by the constant jerking and sputtering, of the gears that took place during vehicle operation. My acceleration was laggy and at some points nearly unresponsive. The vehicle was inspected by service technicians. A warning light saying: Warning please check Hybrid Driving System, Do not drive vehicle was illuminated. Mid to late October 2023

• Apr 8, 2024CA
  Engine
  The car engine started to stall, the engine light came on and advised me to shut off engine then I pulled over and smoke immidiatley filled the cabin and outside the hood. My engine could have blown up. Had I not pulled over so quickly my car would have caught fire and I would have died. Yes the…

  The car engine started to stall, the engine light came on and advised me to shut off engine then I pulled over and smoke immidiatley filled the cabin and outside the hood. My engine could have blown up. Had I not pulled over so quickly my car would have caught fire and I would have died. Yes the Hyundai Folsom inspected the car and listed issue was a hole in the engine block. They stated it was caused by premature wearing of the rod bearings and refused to repair. The ONLY warning happened within seconds of the car stalling and failing to accelerate before I pulled over. The first symptoms was a noise I couldne place 5 days prior. It was a mild knocking sound that was subtle.

• Aug 30, 2023CA
  Electrical system · Steering · Visibility/wiper
  My lcd screen constantly goes black. A couple times the steering wheel locked the wipers and washer fluid went off at the same time. I had to hit the brakes and power the car on and off to reset it while making a turn. When having my window motor replaced for the SECOND time my dash where the…

  My lcd screen constantly goes black. A couple times the steering wheel locked the wipers and washer fluid went off at the same time. I had to hit the brakes and power the car on and off to reset it while making a turn. When having my window motor replaced for the SECOND time my dash where the speed is at all when black while driving on the freeway. I had to pull over and restart the car. My paint and my clear coat is separating on my trunk. It looks white not oxidation just separating and white. My driver side door button to lock the car kept getting stuck and was locking and unlocking. this left the possibilities of my car getting stolen from the door lock and the window motor leaving my window half down. My safety and the safety of others is obviously at risk with the electrical malfunctions. My local dealership left my issue’s unresolved for currently FIVE months with little to no compensation. I guess the life of my family and everyone else on the road is only $420.

• Jan 31, 2022MN
  Power train
  There is a defect with the transmission control module (TCM) and dual-clutch transmission (DCT). This defect prevents the car from properly accelerating from a stop. The defect manifests in the following ways when pressing the accelerator: unresponsive or sluggish acceleration, jerking, shuddering…

  There is a defect with the transmission control module (TCM) and dual-clutch transmission (DCT). This defect prevents the car from properly accelerating from a stop. The defect manifests in the following ways when pressing the accelerator: unresponsive or sluggish acceleration, jerking, shuddering, failure to shift, stalling and complete loss of power. Typically, the TCM defect manifests in two ways: shuddering/delayed brake release, which has happened over 20 times and loss of power/engine revving out of gear which has occured three times. These issues are unpredictable, unrepeatable and dangerous. I usually experience them while waiting at stop lights in busy intersections. Delayed and unpredictable acceleration and shifting could cause a traffic accident. I've notified the dealership three times and had it serviced once by licensed Hyundai technicians at the same dealership. They couldn't replicate the issue and claimed they had never heard of the problem. There are no warning lights when this issue occurs and the dealship said there were no diagnostic codes indicating the problem. Defective TCM & DCT software is a known issue that resulted in a recall campaign for the 2016 Hyundai Tucson. This issue has been documented in the following vehicles: 2017 Hyundai Elantra Eco, 2017 Hyundai Sonata Eco, 2016 – 2017 Hyundai Tucson, 2016 Hyunda Veloster Turbo. Hyundai issued the following service bulletins informing dealerships about the TCU software issue specific to the Tucson: #5NP-X7J3D-10, TSB# 16-01-035, #5NP- S9D9P-10

• Dec 27, 2020CA30 mi
  Unknown or other

  Vehicle battery IS depleted and needs servicing or replacement.

• May 17, 2019PA18,300 miCrash
  Power train
  The car shifts from drive mode into sport mode by itself without the driver manually moving the gear shift from drive to sport. This happens randomly, but always when the car IS in motion and always in a low gear( usually first gear ). It has happened both when making a turn and going straight…

  The car shifts from drive mode into sport mode by itself without the driver manually moving the gear shift from drive to sport. This happens randomly, but always when the car IS in motion and always in a low gear( usually first gear ). It has happened both when making a turn and going straight ahead , usually when the car starts to move after being stopped like at a traffic light. I can get the car to go back into drive mode by physically moving the gearshift into sport mode and then back into drive mode again. Unfortunately, the most recent episode of this happened when I was pulling into my garage. I was halfway into the garage when the car switched to sport mode by itself. The car was still in motion instantly started moving faster and in seconds it hit the back wall of the garage.

• Jan 9, 2019FL4,300 mi
  Electrical system · Engine
  It began shortly after I purchased the car in feb 2018 with the a/c working only intermittently and the settings on the cluster having the same problem, and this electrical problem escalated into a safety issue when on dec 6 the rke failed (battery on fob strong) and a re-start on car did not work…

  It began shortly after I purchased the car in feb 2018 with the a/c working only intermittently and the settings on the cluster having the same problem, and this electrical problem escalated into a safety issue when on dec 6 the rke failed (battery on fob strong) and a re-start on car did not work, until the spare key was tried. Since dealer found no problem with either key, the safety issue remains a major concern for the senior citizen owner who might get caught again without access to the car and with a non-functioning engine. The electrical problem shows itself intermittently in unprovoked beeps of the passenger door, as well as in the cluster settings. *js

• Nov 24, 2018PA1,000 mi
  Electrical system · Unknown or other

  Many issues: 1. Gets stuck in park. 2. Back up camera fuzzy even after cleaned. 3. Apple car play drops out. And or switches from to current phone call. 4. Tire pressure system IS messed up. The tires system doesn't tell you when the tires are below 30lbs. These are just a few issues.

• Oct 18, 2018OH3,000 mi
  Service brakes · Unknown or other

  Clicking noise coming from the bottom of the engine every time the brake pedal IS depressed. Sometimes the clicking noise will continue after the car has been parked and locked. The first time the clicking started, I parked my car and a warning "check brake system" appeared briefly in my dashboard display but the clicking persisted. The pedal felt sluggish with not much resistance.

• Jun 19, 2018PA500 mi
  Vehicle speed control
  While driving this morning (smart cruise control disabled by the weather), I set the cruise control and everything was working ok. I cancelled due to traffic and reengaged without issue. when I requested additional speed with the increase control, the car accelerated and continued to accelerate…

  While driving this morning (smart cruise control disabled by the weather), I set the cruise control and everything was working ok. I cancelled due to traffic and reengaged without issue. when I requested additional speed with the increase control, the car accelerated and continued to accelerate and did not stop accelerating until I hit the brakes and cancelled the cruise control. this IS very unsafe. I expect this fixed and will contact the nhtsa and also file a complaint with them. this IS dangerous and it IS only due to my ability to quickly react did I avert an accident in snowy conditions! ***** I am checking the no crash button only because my quick action and response averted an accident, but this IS very dangerous! *****

• Jan 30, 2018PA200 mi
  Vehicle speed control
  I am very concerned about the cruise control. while driving this morning (smart cruise control disabled by the weather), I set the cruise control and everything was working ok. I cancelled due to traffic and reengaged without issue. when I requested additional speed with the increase control…

  I am very concerned about the cruise control. while driving this morning (smart cruise control disabled by the weather), I set the cruise control and everything was working ok. I cancelled due to traffic and reengaged without issue. when I requested additional speed with the increase control, the car accelerated and continued to accelerate and did not stop accelerating until I hit the brakes and cancelled the cruise control. this IS very unsafe. I expect this fixed and will contact the nhtsa and also file a complaint with them. this IS dangerous and it IS only due to my ability to quickly react did I avert an accident in snowy conditions! -scott

Defect investigations

NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.

• Pedestrian alert sounds

  DP22005Opened Jan 27, 2023Closed Aug 7, 2023Recall 22V063000
  NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for…

  NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

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.

• 10251285This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.
• 10247189This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
• 10240087This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundais Navigation Updates page. The current version of Google Maps has 10 times the data transmission compared to the previous version. As a countermeasure, an update with a frame skip logic has been added to resolve the data congestion with Google Maps.
• 10235566Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint.
• 10230904This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
• 10217258Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver-side B-pillar within 25mm (1 inch) of the original tire placard.
• 10217251Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
• 10215599Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing.
• 10213725If you are servicing an applicable model with Hybrid Drive Motor (Traction Motor) improper operation or any DTC listed in the related shop manual, Motor Control System, refer to the shop manual for diagnosis. If the diagnosis indicates a faulty hybrid drive motor, refer to the Service Procedure and replace the hybrid drive motor.
• 10211680Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing.
• 10211678Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing.
• 10206367When asked to provide the Modem Information, the Universal Subscriber Identity Module (USIM) may not be available. This TSB# 21-01-080H describes the 3-part software to correct this condition and activate Blue Link Services.
• 10206363When asked to provide the Modem Information, the Universal Subscriber Identity Module (USIM) information is not available. This bulletin describes the 3-part Software to correct this condition and activate Blue Link Services.
• 10203272Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing
• 10190044This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
• 10190038This bulletin provides best practice recommendations when performing brake service procedures.
• 10189989This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
• 10185450This bulletin provides information related to the Engine Control Module (ECM) software logic update for DTC P0128 Coolant thermostat - Coolant temp Below thermostat regulating Temperature. There is no drivability issue with this DTC.
• 10183963This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
• 10183960This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the Tire Balance Data Sheet must be fully completed including imbalance and Road Force Variation (RFV) data. The Data Sheet can be found at the end of this bulletin.
• 10180985Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft assembly.
• 10180981This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10179246Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft assembly.
• 10179244This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10178175This bulletin provides information regarding condensation related to moisture accumulation in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. The TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes, or during normal driving operation.
• 10176182This bulletin provides information on tire maintenance best practices and procedures for dealers and customers to maximize tire life and performance.
• 10176178This bulletin describes the general guidelines to help disinfect and protect vehicle exterior/interior surfaces using recommended safe chemical products.
• 10174808This bulletin provides information on identifying dealer stock vehicles with either: A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. A 30 Day alert - vehicle has not started and reported an SOC in 30 days.
• 10174807The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
• 10174804Certain Ioniq hybrid 2017-2019 vehicles may experience check engine light ON with the following DTC stored: DTC P0456 - Evaporative System (EVAP) - Very Small Leak This bulletin provides instructions to install an Air Filter Kit and a Natural Vacuum Leak Detection sensor (NVLD).
• 10173552This bulletin provides additional service diagnostic information and repair procedures related to electric A/C compressors equipped in hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles.
• 10173546This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products.
• 10173545This bulletin describes the mandatory procedure to submit battery test data electronically for battery warranty claims by running the GDS Battery Claim App. The App must be run right after an incident battery is removed from the vehicle or after a battery charge is completed which qualifies for a warranty. It must be run at any time between RO open and close dates.
• 10172147This bulletin describes the procedure to properly bleed the brakes on Sonata HEV/PHEV (LF) and Ioniq EV/HEV/PHEV (AE) vehicles. This procedure applies when any air is introduced into the Active Hydraulic Boost (AHB) system, which consists of the pressure supply unit (PSU), and the integrated brake actuation unit (IBAU). Improper bleeding of the brake system can result in the presence of air, which may reduce braking effectiveness.
• 10172142This bulletin describes the requirements for all wheel alignment and/or vehicle tracking claims and best practices when diagnosing and conducting alignment-related repairs for all models and model years.
• 10170896This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
• 10170883This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection conditions. 2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay connection conditions. 3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port.
• 10169370The Blind Spot Detection (BSD) or Blind-Spot Collision Warning (BCW) is a system that measures the speed of and distance from the following vehicles by using two magnetic wave radar sensors attached in the rear bumper. The BSD/BCW detects vehicles within the blind spot zone and gives off an alarm (visual and audible). The two magnetic radar sensors provide these functions for BSD/BCW: ? Senses other vehicles in the BSD/BCW zone and turns on the BSD/BCW warning lamp for the driver. The warning lamp starts blinking, along with an audible sound, when the driver turns on the turn signal lamp to enter the lane where another vehicle is driving.
• 10167770Hyundai is conducting a Service Campaign to install a new Air Filter Kit with an updated filter to help prevent DTC P0456 on certain 2017-2019 Ioniq (AE) HEV vehicles.
• 10167766Certain 2017-2019 vehicles may experience check engine light ?ON? with the following DTC stored: ? DTC P0456 - Evaporative System (EVAP) - Very Small LeakThese conditions primarily occur in the California coastal areas that are subject to marine layer cloud cover. Salt particulate deposit can form inside the Natural Vacuum Leak Detection (NVLD) which may cause intermittent operation prompting the DTC P0456 and the check engine light ?ON?. This bulletin provides the procedure to install a new Air Filter Kit with an updated filter to help prevent entry of the salt particulates. In addition, vehicles with check engine light ?ON? and DTC P0456 found stored in the Engine Control Module (ECM) must also replace the NVLD part.

Every Hyundai Ioniq Hybrid model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.