2003 Chevrolet Trailblazer Ext 370
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Chevrolet › Trailblazer Ext 370 › 2003
These records cover every 2003 Chevrolet Trailblazer Ext 370. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Owner complaints
14 complaints
What owners report most
Latest complaints
- Fuel/propulsion system
There IS a known problem with the gas tanks on these vehicles. the vapors cause the check engine light to illuminate. in nys this car will not pass the yearly inspection. chevrolet has an extended coverage bulletin out but it only IS for vehicles that have les than 150,000 miles on it or are…
There IS a known problem with the gas tanks on these vehicles. the vapors cause the check engine light to illuminate. in nys this car will not pass the yearly inspection. chevrolet has an extended coverage bulletin out but it only IS for vehicles that have les than 150,000 miles on it or are not older than 15 years old. whichever come first. prior to this, their extended coverage was for 150,000 miles or 12 years. I was excluded from the first time due to age of the vehicle when I purchased it and am now excluded from the second extended coverage due to the mileage. it IS absolutely ridiculous that this IS not an official recall and that chevy has loopholed numerous owners out of the coverage by not increasing the mileage requirement. the national average to drive a car according to the nhtsa IS between 15,000 and 16,000 per year. according to their mileage requires a person would have had to drive this car less that 10,000 per year. this IS totally unrealistic. since this safety issue involves fuel which IS highly flammable I am baffled as to why the nhtsa IS not forcing an official; recall on this vehicle or forcing chevy to take the mileage restriction/age off of the extended coverage.
- Electrical system
2003 chevrolet trailblazer 370 rear passenger side door electrical window control switch would not completely close window . Smelled like electrical wire burning. Had vehicle stop at time and had assistance in removing door interior panel and found electrical window switch completely melted and wire connection burned . Personal vehicle used on vacation, stopped just off highway at time . *js
- Fuel/propulsion system
TL* the contact owns a 2003 chevrolet trailblazer ext 370. While driving at various speeds, there was an abnormal odor of fuel coming from the vehicle. The failure recurred continuously. The contact observed fuel dripping from the rear driver side of the vehicle. The vehicle was taken to the dealer…
TL* the contact owns a 2003 chevrolet trailblazer ext 370. While driving at various speeds, there was an abnormal odor of fuel coming from the vehicle. The failure recurred continuously. The contact observed fuel dripping from the rear driver side of the vehicle. The vehicle was taken to the dealer where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 21,000.
- Fuel/propulsion system
TL* the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that while driving at various speeds, the vehicle surged forward and the rpms fluctuated without warning. In addition, the contact stated that an abnormal fuel odor emitted from the vehicle as the check fuel warning light…
TL* the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that while driving at various speeds, the vehicle surged forward and the rpms fluctuated without warning. In addition, the contact stated that an abnormal fuel odor emitted from the vehicle as the check fuel warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the fuel tank vacuum and fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. the failure mileage was approximately 150,000.
- Visibility/wiper
My wife was driving the SUV at highway speed when the front windshield wipers ceased to function during a heavy thunderstorm. she had to pull over because her visibility was obstructed to the point of not being able to operate the vehicle safely.
- Structure › Body › Hatchback/liftgate
TL* the contact owns a 2003 chevrolet trailblazer ext 370. While driving various speeds, the hatch door ajar light illuminated and failed to latch without warning. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,000.
- Engine
Vehicle started leaving spots of oil on the ground over night. Was driving to work on wednesday and a bluish cloud of smoke was trailing behind me. Arrived at work and let truck cool down after which I crawled underneath and with a mirror was able to locate the leaking rear main seal. This IS a…
Vehicle started leaving spots of oil on the ground over night. Was driving to work on wednesday and a bluish cloud of smoke was trailing behind me. Arrived at work and let truck cool down after which I crawled underneath and with a mirror was able to locate the leaking rear main seal. This IS a common problem with gm,s 5.3 liter engines. Multiple forums are posting many people complaining of the same issue. Gm needs to stand behind there products and repair this issue which again IS a wide spread known problem. *tr
- Tires · Wheels
After a long day of work, I returned to my parked vehicle to discover a totally flat front right tire, on closer examination it was noted that the tire had split on the outside seam. it was noted that the same condition of the tire splitting was visible on all three of the other tires on the…
After a long day of work, I returned to my parked vehicle to discover a totally flat front right tire, on closer examination it was noted that the tire had split on the outside seam. it was noted that the same condition of the tire splitting was visible on all three of the other tires on the vehicle. Flat tire was replaced with spare tire that had never been used. I returned the vehicle to the place that I had purchased the tires; the tech at the store examined the tires and declared that all four tires were manufactured from the same batch of tires manufactured by goodyear. And that all four were defected. today I contacted goodyear and took my vehicle to their location. the man at goodyear stated that goodyear has never had a recall nor defective tires. that he would have to contact goodyear when they opened on the east coast. My complaint IS with goodyear. and the validity of the goodyear tech stating that goodyear has never had a defective tire or recall on their tires. *tr
- Electrical system · Visibility
Tl*the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that the windows failed to roll up or down. Also, the contact mentioned that the heated seat would not turn off. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 140,000.
- Electrical system · Exterior lighting
TL* the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that the turn signals do not function properly and the hazard lights illuminated instead of the turn signals. The contact was able to press the button for the hazard lights when needed, but not the turn signals. The…
TL* the contact owns a 2003 chevrolet trailblazer ext 370. The contact stated that the turn signals do not function properly and the hazard lights illuminated instead of the turn signals. The contact was able to press the button for the hazard lights when needed, but not the turn signals. The vehicle was not diagnosed. The failure continued and caused the front headlight assembly and the rear headlight assembly to short and dim with no warning. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.
- Electrical system
We were driving down the highway when our rear passenger door flew open, and will not stay closed or lock. We had to drive with someone back there holding it shut til we got to a store to ratchet strap it closed. I called chevy when I seen it was part of a recall for the 2005 but they would not…
We were driving down the highway when our rear passenger door flew open, and will not stay closed or lock. We had to drive with someone back there holding it shut til we got to a store to ratchet strap it closed. I called chevy when I seen it was part of a recall for the 2005 but they would not look at mine because it was not the same year as the recall and want me to pay out of pocket to fix the problem, and would not tell me k=name of the part to see if I could buy it and fix it ourselves a lot cheaper. *tr
- Electrical system · Electronic stability control (esc) · Exterior lighting
This has been going on for three years since 2011 at night at random times our low beam headlights go out on us as your driving down the highway. They may come back on before you get home but we have drove 1HR 30 minutes and still not. We did take it in several times and they can not fine a…
This has been going on for three years since 2011 at night at random times our low beam headlights go out on us as your driving down the highway. They may come back on before you get home but we have drove 1HR 30 minutes and still not. We did take it in several times and they can not fine a problem. They said they can change this n that senor but couldn't say that would even fix it. But cost us $$$$$$ why can't some one fine out do a recall we hate driving on our highbeam and so does the people we pass or get behind. We do try and turn them off when we pass other but that IS dangers as well.please help we want to keep our trailblazer and stay alive. *tr
- Electrical system
Speedometer tachometer and battery gauge do not work. *tr
- Engine and engine cooling
Exhaust bolts have broken on the exhaust manifold, this vehicle has the V8 engine. Dealer explains that this needs fixed as carbon monoxide could enter the passenger cabin. There was an accident with the vehicle a year ago, I contacted my insurance company to see if it was related to the accident.…
Exhaust bolts have broken on the exhaust manifold, this vehicle has the V8 engine. Dealer explains that this needs fixed as carbon monoxide could enter the passenger cabin. There was an accident with the vehicle a year ago, I contacted my insurance company to see if it was related to the accident. They claim that it IS not related to the accident and that gm vehicles model year 2000 to 2007 with this 5.3 V8 engine have reported these bolts breaking and informed me to contact gm about reimbursement for repair expenses. I do not have the $2000 for repairs and am concerned about the safety of my family while in the vehicle. *tr
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- Fuel pump module leaks gasoline
During the course of this ea investigation, odi observed that the majority of the complaints (88%) and warranty claims (94%) were reported for vehicles that are registered for use in the salt belt region of the us.this area includes 20 states in the northeast, mid atlantic and the midwest regions and the district of…
During the course of this ea investigation, odi observed that the majority of the complaints (88%) and warranty claims (94%) were reported for vehicles that are registered for use in the salt belt region of the us.this area includes 20 states in the northeast, mid atlantic and the midwest regions and the district of columbia.consumers in the salt belt region reported to odi that they could smell fuel vapors in their vehicles while driving.upon further examination of their vehicles, they discovered that fuel vapors were coming out of the top of the fuel tank. This condition IS caused by corrosion of the return and sender lines of the fuel pump module.water and road salt collect on top of the fuel pump leading to small pinholes appearing on the fuel lines.fuel may leak and collect on top of the module and/or spill onto the ground.the data evaluated under this investigation reflect a relatively low frequency of occurrence that largely arises in salt belt states.gm has extended the warranty on the subject component to ten years or 120,000 miles.further use of agency resources does not appear to be warranted at this time; accordingly, this investigation IS closed.the closing of this investigation does not constitute a finding by nhtsa that no safety-related defect exists.the agency reserves the right to take further action if warranted by the circumstances.for additional information select document search.
- Fuel tank leak
In june 2007, gm will expand its special policy to address fuel tank inlet check valve (icv) fractures on certain model year (my) trailblazer ext and GMC envoy XL vehicles.the expanded policy covers my 2002-2004 trailblazer ext, GMC envoy XL, and GMC envoy xuv vehicles and will extend for a period of 10 years or…
In june 2007, gm will expand its special policy to address fuel tank inlet check valve (icv) fractures on certain model year (my) trailblazer ext and GMC envoy XL vehicles.the expanded policy covers my 2002-2004 trailblazer ext, GMC envoy XL, and GMC envoy xuv vehicles and will extend for a period of 10 years or 150,000 miles (whichever comes first).gm will provide free repair of the fuel tank. It IS sending letters to owners beginning in june of 2007.this action supersedes gm's previous 7 year/70,000 mile special policy for my 2002 trailblazer ext and envoy XL vehicles.the condition IS most often reported as illumination of the service engine soon (ses) light.the vehicle's diagnostic system detects the presence of a fuel system pressure leak and illuminates the ses light.other owners report smelling gasoline fumes. The action taken by the manufacturer IS sufficient to resolve the issues raised by this investigation.the closing of this investigation does not constitute a finding by nhtsa that no safety-related defect exists.the agency reserves the right to take further action if warranted by the circumstances.
- Fuel pump module leaks gasoline
Odi has received reports that the fuel pump module leaks fuel and or vapor underneath the vehicle.gm states, the failure mechanism IS corrosion of the fuel pump module flange which may lead to a fuel leak.corrosion of the fuel pump module flange IS the result of the vehicle operating in a corrosive environment.odi has upgraded this pe to engineering analysis (ea07-009) to further assess this issue.
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.
- 11007208This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
- 11006621Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
- 11006421GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
- 11004761This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
- 11004557This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
- 11002312This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
- 11000576This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.
- 10252735This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10252163XM Audio Traffic And Travel Link Availability And Operation.
- 10251890This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
- 10251887This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10250775This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
- 10249590This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
- 10249579This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10249011This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
- 10248444Vehicle Recalls
- 10247681Information On Requests To Add OnStar Bluetooth Option.
- 10247552This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
- 10246952Programming And Activation Of Replacement OnStar Modules.
- 10246951Programming And Activation Of Replacement OnStar Modules.
- 10246631Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10245951Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
- 10245950Canadian Customers Unable To Place Calls In The United States
- 10244274This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
- 10244214This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10244201This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
- 10242843The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
- 10242262This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
- 10235802This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10235799This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
- 10234141This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234110This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10232287This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- 10232136This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
- 10228906This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.
- 10228888This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
- 10227674This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
- 10227056This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
- 10225615This service bulletin provides information on Module Harvesting.
- 10224820This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
Every Chevrolet Trailblazer Ext 370 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.