2023 CHEVROLET TRAILBLAZER

0 recalls — 82 complaints — 348 TSBs — 5/5 safety rating

No recalls found for this vehicle.

Complaint Statistics

82 total complaints 8 crashes 1 fires 8 injuries

Top Reported Components

Component	Complaints
SERVICE BRAKES	13
ENGINE	13
ELECTRICAL SYSTEM	11
UNKNOWN OR OTHER	9
POWER TRAIN	7
AIR BAGS	4
FUEL/PROPULSION SYSTEM	3
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING	2
LANE DEPARTURE: ASSIST	2
BACK OVER PREVENTION	2

Incident date: Mar 25, 2026

While driving on the highway in light traffic at approximately 70 mph and changing lanes, the side airbags in my vehicle suddenly deployed without warning. There was no collision, no contact with another vehicle, no road debris, and no apparent external cause for deployment. I did not strike anythin... Read more

Incident date: Mar 16, 2026

The bolts holding the exhaust to the catalytic converter broke while I was driving my car. The car could have flipped, the exhaust could have busted through the vehicle, or I could have caused an accident and died. This comes on the heels of the EXACT SAME THING happening to my wife's Chevy Trailbla... Read more

Incident date: Feb 28, 2026

The Onstar module has went out on my car and while researching the issue I found out that it is a very common problem with Chevrolet/GM vehicles years 2021-2025 and although Chevrolet and GM are wwll aware that there's an issue and that the onstar modules are faulty there's been no recall. Mind you ... Read more

Incident date: Feb 28, 2026

Incident date: Jan 30, 2026

Screen in car goes black.no radio,no noise,no back up camera-Apple car play won’t hook up anymore-I see others models around mine having exactly the same issues I am experiencing-I have reset radio/screen multiple times,it works anywhere from a few mins to hours then it blacks out again and there ... Read more

Incident date: Jan 30, 2026

Incident date: May 20, 2025

My family and I was I involved in a hit and run accident. My minor child is still suffering from shoulder/rotator cuff injuries. Hewas in the process to start conditioning for football. The seatbelt on the day of the accident did not lock. GM sent a criminal investigator not a trained engineer for ... Read more

Incident date: May 20, 2025

Incident date: Jan 27, 2026

Had p1098 code come up on car at 67000 issue coolant control valve assembly went bad. This a commons issue with trailblazers and other cars similar to it. Bad design cause extremely expensive repair for this component.

Incident date: Dec 12, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that the ignition switch was locked and failed to release the key. The vehicle was taken to the dealer, where the cause of the failure could not be determined; however, the failure persisted. The vehicle was taken back to the dealer, ... Read more

Incident date: Jun 15, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at 68 MPH, the vehicle stalled. The message "Shift to Park" was displayed. The contact managed to pull over to the shoulder of the road, where the contact attempted to restart the vehicle; however, the vehicle faile... Read more

Incident date: Dec 15, 2025

Exhaust fell off under normal operating conditions. Dealership (Dekalb Sycamore Chevrolet- Sycamore Illinois) stated this has been a common issue with this year group of Chevrolet Trailblazer SUVs. Dealership stated the bolts/exhaust pipe junction between the catalytic converter and pipe that goes t... Read more

Incident date: Dec 15, 2025

Incident date: Nov 6, 2025

I was in a collision. Traveling a four lane highway during daylight ours with no in-climate weather. The car in front of a line of approximately 4 cars missed their exit and slammed on his breaks to make a right turn from the driving lane. The line of cars in front of me stopped and/or left the ro... Read more

Crash 2 injured

Incident date: Nov 6, 2025

Crash 2 injured

Incident date: Nov 6, 2025

Crash 2 injured

Incident date: Oct 13, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that after shifting into park(P), there was an abnormal beeping sound coming from the vehicle. There was no warning light illuminated. The contact shifted into neutral(N) and then back into park(P) to stop the beeping sound. The conta... Read more

Incident date: Sep 17, 2025

1/ while at the stop site, the car suddenly stopped and went black. Stereo turn off and screen went black. 2/ sometime I can’t unlock the car from inside. The lock works but not the unlock button. While backing or stopping there is a high noise that seems like I have a bad brake , took it to the d... Read more

Incident date: Sep 17, 2025

Incident date: Oct 21, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the instrument cluster flickered, and the vehicle stalled. In addition, the radio turned off independently. The contact turned the vehicle off. The contact stated that while restarting the v... Read more

Incident date: Aug 29, 2025

Coolant Vavle malfunction Engine could overheat Yes Manufacturer No warning lights..check engine light came and I had the car diagnosed

Incident date: Aug 30, 2025

When I shift my vehicle into park and hit the button to shut it off, a "shift to park" message appears on the DIC screen. I then am required to start my vehicle again, shift into gear, and then put it back into park and attempt to shut the vehicle off again. It has taken me up to 15 minutes to be ... Read more

Incident date: Aug 30, 2025

Incident date: Nov 5, 2024

Onstar module that is supposed to working in case of a crash or another emergency stopped working back in November 2024. It also is attached to other operations such as the vehicles microphone. I took it to the dealership Chevrolet said they would pay half of the replacement. My vehicle is not the o... Read more

Incident date: Jun 13, 2025

at around 42,000 miles my Trailblazer displayed a message that engine power had been reduced and the check engine light came on. I took it to my dealer who diagnosed as a problem with the engine turbo fixed it and returned the car to me. I drove for 2 weeks and the same thing happened. I traded i... Read more

Incident date: May 6, 2024

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that on several occasions, while the Forward Collision Avoidance: Adaptive Cruise Control was activated, and the brakes were inadvertently activated. The vehicle was taken to a dealer, and it was determined that three software updates... Read more

Incident date: Sep 1, 2024

I reported my first issue back in late 2024 of the brakes squealing they took my car in and resurface the rotors. It stopped squealing for about a few months and now we are in summer of 2025 and they are squealing again. I took my car to the dealership because they told me that my car would be under... Read more

Incident date: Jun 21, 2025

The turbo went out on the car for absolutely no reason. Message popped up on dash board saying "Engine power reduced". I have seen this happen to many many many other card across the country. It does not many how many miles are on the car. some Ive seen 25k and some ive seen at 60k. Shouldn't Ch... Read more

Incident date: Jun 14, 2025

My car key keeps getting stuck in the ignition and won’t come out until we unhook the negative on the battery.

Incident date: Jun 14, 2025

My car key keeps getting stuck in the ignition and won’t come out until we unhook the negative on the battery.

Incident date: Mar 27, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that upon starting the vehicle, the check engine warning light illuminated. The vehicle was taken to a local Auto Zone where a diagnostic scanner was used to retrieve DTC: P146D. The vehicle was then taken to an independent mechanic w... Read more

Incident date: Apr 20, 2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving at undisclosed speeds, the vehicle independently activated the brakes while the accelerator pedal was depressed. In addition, the contact stated that while attempting to make a left turn, the steering wheel independ... Read more

Incident date: Apr 20, 2025

Incident date: Sep 1, 2023

The ABS system in this vehicle flashes warnings at quick restarts and while holding the brake down, it has no “sponge” when this happens. The brakes squeal constantly. I’ve had them inspected at every single maintenance and there can be no flaw found. When driving on the interstate, the engi... Read more

Incident date: Sep 1, 2023

Incident date: Apr 30, 2025

Engine failure. “Low engine power” mechanic read code as turbo failure.

Incident date: Apr 4, 2025

[XXX] [XXX] [XXX] [XXX] [XXX] Date: 04/06/2025 To: National Highway Traffic Safety Administration 1200 New Jersey Avenue, SE Washington, D.C. 20590 Subject: Urgent Safety Complaint Regarding Shyft DualRide with Carryall Storage Infant Car Seat and Stroller Combo (Sylva Pink) Dear NHTSA, ... Read more

Incident date: Apr 4, 2025

Incident date: Apr 1, 2024

The sunroof fabric roll came off of the track when attempting to open the sunroof. Yes it is still off the track I have yet to get it fixed due to time restraints. It poses a risk because of the loud noise it makes until you stop the opening of the sunroof. As many individuals open their sunroof wh... Read more

Incident date: Aug 10, 2024

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while operating the vehicle, the backup camera image remained displayed in all gear shifter positions. The contact was concerned that safety warning information and messages were not available for viewing while the failure was pr... Read more

Incident date: Aug 10, 2024

Incident date: Dec 30, 2024

The contact owns a 2023 Chevrolet Trailblazer. The contact stated while the vehicle was parked, there was an abnormal sound coming from the engine compartment. No warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that there was debris from the eng... Read more

Incident date: Jun 5, 2024

The brakes have been making a loud squeeling when I slow down. This has occurred since I bought the vehicle. The dealership has reviewed it multiple times and state they do not know what is causing it or how to fix it. The last time the tech stated there is nothing they can do. Now the brakes aren't... Read more

Incident date: Oct 23, 2024

I have a 2023 trailblazer rs bought brand new. Currently has 12776 miles on it and for atleast the last 5000 miles I've noticed the breaks squeeling. Esp when I'm going slow speeds. I first thought maybe it was the weather or something. Moisture..whatever because this car is so new I just brushed it... Read more

Incident date: Jul 4, 2024

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while driving 65 MPH, the “Engine Power Reduced" message was displayed, and the vehicle was unable to accelerate above 30 MPH. No warning lights were illuminated. The vehicle returned to normal functionality, but the failure be... Read more

Incident date: Jul 20, 2024

The brakes squeal and make an odd chirping noise. They grab too. The dealership refused to even look at it unless if I paid for a service. The car is under warranty.

Incident date: Oct 1, 2023

I recently bought a new Trailblazer 2023 last year. I have had problems with a squeaking noise when I apply the brakes. The problems have gotten considerably worse. I have taken it to the dealership and they claim there are no problems. I made an appointment to take it to the dealership again be... Read more

Showing 50 of 82 complaints.

NHTSA Safety Ratings — 2023 CHEVROLET TRAILBLAZER

2023 Chevrolet Trailblazer SUV AWD

Category	Rating
Overall Rating	5 / 5 ★★★★★
Frontal Crash	5 / 5 ★★★★★
Frontal Crash — Driver	5 / 5 ★★★★★
Frontal Crash — Passenger	4 / 5 ★★★★☆
Side Crash	5 / 5 ★★★★★
Side Crash — Driver	5 / 5 ★★★★★
Side Crash — Passenger	5 / 5 ★★★★★
Rollover	4 / 5 ★★★★☆
Rollover Risk	17.9%

Safety Technology

Feature	Status
Electronic Stability Control	Standard
Forward Collision Warning	Standard
Lane Departure Warning	Standard

Source: NHTSA 5-Star Safety Ratings Program. Ratings are based on crash tests conducted by the National Highway Traffic Safety Administration.

Technical Service Bulletins — 2023 CHEVROLET TRAILBLAZER

348 manufacturer communications from 171 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
110000 ELECTRICAL SYSTEM	64
060000 ENGINE AND ENGINE COOLING	63
350000 EQUIPMENT	55
100000 POWER TRAIN	34
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	29
200000 WHEELS	16
160000 STRUCTURE	7
120000 EXTERIOR LIGHTING	7

200000 WHEELS

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

350000 EQUIPMENT

This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

110000 ELECTRICAL SYSTEM

980000 UNKNOWN OR OTHER

This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

350000 EQUIPMENT

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

200000 WHEELS

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

110000 ELECTRICAL SYSTEM

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

118000 ELECTRICAL SYSTEM:SOFTWARE

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This service bulletin advises the technician to replace valve body first to determine if that is the issue for and if not, to inspect internal parts of transmission for any signs of abnormal wear to correct customer concerns of Loss of Forw

100000 POWER TRAIN

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

350000 EQUIPMENT

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

100000 POWER TRAIN

This informational bulletin advises the changes to some of the 9-speed oil control changes from previous years.

110000 ELECTRICAL SYSTEM

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

110000 ELECTRICAL SYSTEM

Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles. The Engine Control Module (ECM) may not clear the permanent status of DTC P0521 (Engine Oil Pressure Sensor Performance). If t

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

060000 ENGINE AND ENGINE COOLING

This 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 shou

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

350000 EQUIPMENT

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

350000 EQUIPMENT

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

980000 UNKNOWN OR OTHER

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

350000 EQUIPMENT

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

100000 POWER TRAIN

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

350000 EQUIPMENT

This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer concerns of Various Electrical Issues, No Start, Stall, Brake Lamp Not Off, Radio Inoperative, Remote K

200000 WHEELS

160000 STRUCTURE

110000 ELECTRICAL SYSTEM

030000 SERVICE BRAKES, HYDRAULIC

110000 ELECTRICAL SYSTEM

This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

100000 POWER TRAIN

This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

060000 ENGINE AND ENGINE COOLING

This 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.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information on normal engine characteristics/noise produced by the LIH engine.

353610 EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

060000 ENGINE AND ENGINE COOLING

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

070000 FUEL SYSTEM, GASOLINE

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

100000 POWER TRAIN

This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle

060000 ENGINE AND ENGINE COOLING

350000 EQUIPMENT

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

350000 EQUIPMENT

This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.

350000 EQUIPMENT

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

160000 STRUCTURE

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

100000 POWER TRAIN

This Preliminary information communicates the process for recording transmission noises using the PicoScope For review

100000 POWER TRAIN

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

060000 ENGINE AND ENGINE COOLING

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen. While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will st

120000 EXTERIOR LIGHTING

This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.

100000 POWER TRAIN

This Preliminary information communicates inspection and/or needed repairs for DTC P2714 on a VT40 CVT transmission

110000 ELECTRICAL SYSTEM

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

350000 EQUIPMENT

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a procedure to fix an oil leak from a porous area at the cylinder head and how to fix it so that the engine does not have to be replaced.

110220 ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

980000 UNKNOWN OR OTHER

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

162310 STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS

This service bulletin provides repair information to correct a customer concern of a Rear Side Door Weatherstrip Coming Loose.

160000 STRUCTURE

This service bulletin provides repair information to correct a customer concern of a Rear Side Door Weatherstrip Coming Loose.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

060000 ENGINE AND ENGINE COOLING

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

Emission Recall - General Motors has decided to conduct a voluntary emissions recall involving certain vehicles. The Vehicle Emissions Control Information (VECI) label may not have been installed. Additionally, other documentation includi

060000 ENGINE AND ENGINE COOLING

This engineering information (EI) Lite closure ends the need for requesting technicians to use the steps in the Field Product Report (FPR) App in regard customers finding engine oil under the vehicle.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to replace the shifter if the park switch has been found with bad pins, causing the customers concern.

100000 POWER TRAIN

This technical bulletin provides a procedure to replace the shifter if the park switch has been found with bad pins, causing the customers concern.

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

120000 EXTERIOR LIGHTING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

110000 ELECTRICAL SYSTEM

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

100000 POWER TRAIN

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

Showing 100 of 348 bulletins.

NHTSA Safety Investigations — CHEVROLET TRAILBLAZER

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

EA — Closed — Model Year: 2007

Driver's Master Power Window Switch

On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, D... elaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.Read more

PE — Closed — Model Year: 2002

BRAKE LAMP FAILURE

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION ON MODEL YEAR (MY) 2002-04 CHEVROLET TRAILBLAZER VEHICLES.GM REPORTS THAT OTHER VEHICLES SHARING THIS PLATFORM AND BRAKE LAMP DESIGN ARE THE MY 2002-2004 CHEVROLET TRAILBLAZER EXT; GMC ENVOY, XL, XUV; OLDSMOBILE BRAVADA AND 2004 BUI... Read more

EA — Closed — Model Year: 2002

WINDSHIELD WIPER FAILURE

ON SEPTEMBER 17, 2003, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE03-042) TO INVESTIGATE ALLEGED WINDSHIELD WIPER FAILURE IN CERTAIN MODEL YEAR (MY) 2002 AND 2003 CHEVROLET TRAILBLAZER AND TRAILBLAZER EXT, GMC ENVOY AND ENVOY XL, AND OLDSMOBILE BRAVADA VEHICLES.THE ... Read more

PE — Closed — Model Year: 2002

2002 TRAILBLAZER/ENVOY FUEL TANK LEAKS

SEE ATTACHED REPORT.

RQ — Closed — Model Year: 2002

FUEL FILTER QUICK CONNECT FITTING

There is no summary currently available

PE — Closed — Model Year: 2002

PINCHER/CHAFED WIRING

CHEVROLET TRAILBLAZER — All Years Overview

Complete safety history for the CHEVROLET TRAILBLAZER across all model years (2002–2022).

70 Total Recalls

9,250 Total Complaints

6 Investigations

525 Reported Crashes

336 Reported Fires

44 Reported Deaths

CHEVROLET TRAILBLAZER — Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2026	0	1	View
2025	0	21	View
2024	0	50	View
2023 (current)	0	82
2022	2	142	View
2021	12	240	View
2014	0	2	View
2009	0	34	View
2008	0	261	View
2007	14	965	View
2006	17	1,440	View
2005	2	1,902	View
2004	2	1,302	View
2003	8	1,160	View
2002	13	1,573	View
2001	0	29	View
2000	0	32	View
1999	0	7	View

Other CHEVROLET Models

Model	Recalls	Complaints
SUBURBAN	246	10,458	View
TAHOE	240	12,622	View
MALIBU	216	29,080	View
SILVERADO 1500	200	22,534	View
CORVETTE	187	6,308	View
CAMARO	179	4,298	View
SILVERADO	159	10,964	View
SILVERADO 3500	152	1,409	View