2023 Chevrolet Trailblazer Complaints

ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE — Filed 08/01/2026

purchased brand new December 2022. 7000 miles had issues with brake noise. dealership resurfaced rotors. 28000 miles turbo had to be replaced due to "reduced engine power". Was told a seal was the problem in the original design. 45000 miles a/c would stop blowing and produce extensive condensation on middle vents and "shift to park" became a problem. dealership cannot "reproduce" issues and therefore states nothing is wrong, although research shows problems exists and there is a back order on switch/shift assembly. Hopefully these problems "show" themselves to the technicians before extended warranty runs out, better yet a recall be issued.

UNKNOWN OR OTHER — Filed 09/22/2026

Key getting stuck in ignition

AIR BAGS,SEAT BELTS — Filed 09/29/2026

I was riding in this suv with the owner heading down [XXX] towards Highway [XXX] in Madera, CA . We were approaching a turn onto highway [XXX] and there was slowed or stopped traffic in front of us, we slowed to a stop and then was hit very hard from behind by a newer Mustang.ihad my seat belt on, as usual, but we were hit so hard i hit my face on the dash, causing pain and a bloody nose, swollen lips and head pain. The air bag did not deploy, nor did the seat belt hold me in place. We called 911 and had the CHP come out. The car had to be towed away. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

UNKNOWN OR OTHER,ENGINE — Filed 09/02/2026

This incident is in regards to a fire that occurred in the engine bay area, post having turbo replacement and spark plug replacement done by a local dealership where this car was purchased new. Car had roughly approximately 60,000 miles and had a check engine light and engine reduce power notification on dash. Was taken to the aforementioned dealership for general scope of work while in the possession and actively being test driven for the repair the vehicle was driven 5 miles and the driver was flagged down by motorists for smoke. The incident was recorded by Riverside Police Department and Riverside fire department. The origin and caused are still undetermined at this time. Some background in history of this vehicle has never been in a crash and has not had any parts replaced from the original purchase.

ELECTRICAL SYSTEM — Filed 06/15/2026

Shift to Park error message when car is already in park and then difficulty getting car to turn off. This is an ongoing issue. I have seen online this is a common problem. This is a safety issue because if the car doesn't turn off the battery will go dead leaving a driver stranded. This issue began soon after the car was out of warranty.

ENGINE — Filed 08/20/2026

While driving to work last Thursday morning suddenly my 2023 Trailblazer let out a sorta growl and then a dragging noise thankfully I was able to get over and stop on the shoulder only to discover that my tail pipe was dragging from just after the catalytic converter as the bolts apparently sheared off leaving only the head of the bolts intact. Lucky for me I there wasn’t major damage. I did however have to get my vehicle towed and have the bolt heads cut off in order to have the exhaust fixed

UNKNOWN OR OTHER — Filed 08/24/2026

Exhaust system Yes Bolts that hold it on , rusted off Could have fallen off while I was driving. Luckily I managed to get to work before it fell off. Yes Inspected by repair shop No warning

SERVICE BRAKES, HYDRAULIC — Filed 07/01/2025

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that while his wife was driving at an undisclosed speed, the brake pedal felt extremely firm and was difficult to depress. The contact stated that his wife needed to anticipate the stopping distance to apply enough force to the brake pedal while stopping the vehicle. The vehicle was taken to the dealer on several occasions, but the technicians continuously stated that there was no failure with the vehicle. The vehicle was taken to an independent mechanic and was diagnosed with an inoperable brake master cylinder. The contact was informed that the brake master cylinder needed to be replaced. The vehicle was taken back to the dealer with the information; however, the dealer stated that the brake master cylinder replacement was not necessary. The vehicle remained unrepaired. The manufacturer was notified of the failure. The failure mileage was 40,000.

POWER TRAIN — Filed 08/01/2026

The shift assembly is going bad and causing a Shift to Park error that GM is aware of. They have issued a Technical Service Bulletin about this exact part. The error code will cause the battery to run down leaving me stranded. The dealer has inspected the vehichle and ordered the necessary part to replace it. The vehicle has not been inspected by the manufacturer, police, insurance representatives or others but is available to have an inspection done. There were no warning lamps for this other than the Shift to Park error showing on the display when the car has been turned off. These error messages started happening around August 1, 2026.

ENGINE — Filed 05/28/2026

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that on several occasions while driving at various speeds, the vehicle went into LIMP Mode with the check engine warning light illuminated. The contact stated that on three occasions, the vehicle was stopped and restarted, but the failure persisted. The vehicle was taken to an independent mechanic, where it was determined that the wastegate actuator needed to be replaced, and DTC: P0299 was retrieved. The vehicle was repaired, but the failure persisted. The vehicle was taken to a dealer, where DTC: P0299 was retrieved, and the contact was informed that the turbo or the wastegate actuator needed to be replaced. The vehicle was not repaired. The vehicle was then taken to another independent mechanic, where it was determined that the turbo and waste gate actuator needed to be replaced. The vehicle was not repaired. The contact associated the failure with Manufacturer Recall Number: A222379711. The manufacturer was not notified of the failure. The failure mileage was approximately 33,000.

ELECTRICAL SYSTEM,SERVICE BRAKES — Filed 06/03/2026

When shifting to park, car alerts to “shift to park”

ENGINE AND ENGINE COOLING — Filed 01/05/2026

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that, while driving on several occasions with the auto start-stop feature activated, the vehicle appeared to shut down at a complete stop as the infotainment screen and dashboard lights turned off. The vehicle restarted automatically but shuddered during startup. The dashboard lights and the infotainment screen became operable. The vehicle was not diagnosed or repaired. Additionally, the contact stated that while driving at approximately 30 MPH, the thermostat needle went to Hot, and the Check Engine warning light illuminated. The vehicle was steered to the side of the road and turned off for approximately 15 minutes. Upon restarting the vehicle, the check engine warning light remained illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the coolant flow control valve had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 88,251.

UNKNOWN OR OTHER — Filed 05/23/2026

After the car is parked and engine completely turned off, there is a 'Shift to Park' warning and it kept on blinking and wouldn't turn off. It drains the car battery.

ENGINE AND ENGINE COOLING — Filed 05/11/2026

The contact owns a 2023 Chevrolet TrailBlazer. The contact stated while driving 70 MPH on the interstate , the vehicle independently went into engine power reduce mode. The contact mention she pulled off the interstate, turned the vehicle off for five to ten minutes then turned the vehicle back on and the vehicle began to work as intended. A dealer was contacted. The vehicle was taken to a dealer where it was diagnsonesd the turbo booster needed to be replaced. The vehicle was not repaired. The manufacturer was notified on the failure, and they informed her there were no recalls at this time. The approximate failure mileage was 103,000.

POWER TRAIN — Filed 04/06/2026

The contact owns a 2023 CHEVROLET Trailblazer. The contact stated that while parking the vehicle, the computer system failed to recognize that the vehicle had been shifted into the park position, causing a "Shift to Park" warning light to illuminate on the instrument cluster. Although the gear selector was physically in park, the contact was unable to fully shut down the vehicle and had to cycle the ignition on and off multiple times until the system eventually recognized the park position. The vehicle was driven to the dealer where it was diagnosed to be a transmission control assembly failure. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 61,097.

AIR BAGS — Filed 03/25/2026

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 anything before, during, or after the deployment. There were no vehicles within several car lengths of my vehicle at the time. Highway Patrol was dispatched to the scene. Officer TJ Carter with Guilford County responded. Upon inspection of the vehicle at the scene, we found no evidence of impact or contact with another vehicle, object, or debris. The vehicle was covered in yellow pollen at the time, and even light contact would have left visible marks or disturbance in the pollen. After examining the vehicle, no signs of contact were identified. The vehicle does have unrelated prior body damage from over a year ago on one side, but that damage predates this incident and was not caused by this event. The responding officer can confirm there was no collision or new impact associated with the airbag deployment. There was no accident associated with this airbag deployment. The airbags deployed while I was traveling at highway speed, which caused a sudden and dangerous driving event and required me to quickly maneuver to the side of the roadway. This created a serious safety risk to me and to surrounding traffic. Prior to this incident, there were no warning lights, safety alerts, or service notifications indicating an issue with the airbag system or vehicle safety systems. However, a notification did appear in the My Chevrolet app at or around the time of the incident. The vehicle has not yet been fully inspected following the incident. A safety claim has been submitted to General Motors. I also have video footage of the Highway Patrol Officer cutting down the airbags on-site but cannot add that below so I have added a screenshot.

ENGINE — Filed 03/16/2026

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 Trailblazer with nearly the same mileage as mine. I have 97K miles and she 96K. This is a KNOWN ISSUE to them and it is NOT THE FIRST time this has occurred. There are thousands of similar instances that have occurred and one can easily find the anecdotes through an online search.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 02/28/2026

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 the module doesn't just affect onstar features it also is connected to bluetooth microphone and remote start and now none of them work at all.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 01/30/2026

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 is nothing on screen.i have replaced the battery,key fine battery’s,and fuse.and I am still experiencing this issues.i have made an appointment at a Chevy dealer to have it diagnosed March 2,2026.that is $169.00 out of my pocket.again I am seeing plenty of other checks around my make and model having the same issues being recalled. My incident started about January 30,2026.

POWER TRAIN,SEAT BELTS,FORWARD COLLISION AVOIDANCE — Filed 05/20/2025

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 the vehicle. The seatbelts needs to be inspected. The motor/transmission is making a ticking sound.

AIR BAGS,FORWARD COLLISION AVOIDANCE — Filed 11/06/2025

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 roadway to avoid a collision. I was unable to stop in time and had nowhere to go and I rear-ended the car in front of me, which was fully stopped in the lane. According to my dash camera my speed on Impact was approximately 45 mph. No front end collision warning alarms went off. No automatic breaking occurred. No airbag deployed. None of the vehicle safety and anti collision measures performed as I had expected. $10,000 worth of damage to my car alone.

AIR BAGS — Filed 03/06/2024

-The airbag(s) did not deploy. (**Attached police report says it did, but I have pictures showing it didn't, and they are currently in process of correcting the report) I have to pay to get the police report, so since I just obtained it on 3/13, I will wait a few days to get the corrected copy, to ensure it's complete. -The vehicle is either at the towing company or at the insurance company being inspected, but I'm sure it can be available. -I was in a traffic accident with injuries where if the airbags had deployed the injuries could have been prevented. -Unknown if it has been reproduced or confirmed, but I would guess no. -Insurance company was going to pick the vehicle up from the towing company and bring it to their venue to inspect. I'm unsure if that has happened yet. -No

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,ENGINE — Filed 03/01/2024

While driving 65-70 MPH cruise control will continuously "bog" down and act like it is wanting to cut off the whole vehicle. transmission is starting to act like it is slipping to the point where I am going all the way to the steering wheel before it catches again. Vehicle is under 36,000 miles and should not be having transmission issues. Radio has been replaced once before but is now doing the same thing where it is not recognizing my phone, directions given to it by touch on screen, and will even completely turn off while in the middle of driving. Will freeze and then act like the screen has 'water' damage. back up camera is not calibrated correctly. It states that I have more than enough room to make a turn but when looking into my mirrors, it is off by almost a foot and a half. I was in a car accident due to the back up camera malfunction with the difference in distance and with the screen malfunctioning. I have had the vehicle inspected by the chevy dealership multiple times and they have stated that there is nothing coming up on the code reader. The vehicle is available for inspection. My children ride in this vehicle and after the accident, I do not deem it quite safe with the malfunctioning parts. There has not been any lights coming on for the issues but the issues are there.

UNKNOWN OR OTHER — Filed 10/29/2023

The vehicle lit on fire under the hood while driving. It is only 6 months old and has just 5300 miles on it. No service had been needed nor done on the vehicle yet nor did any of the diagnostic gauges or software alert me to any issues before it happened

AIR BAGS — Filed 06/12/2023

My vehicle was struck on the left front drivers side while traveling 55 mph. My car flipped multiple times, but when it came to a rest on the drivers side, my head was trapped between the driver's window and the side curtain airbag. I couldn't move the airbag, so I had to move my seat back and bend my neck/head back and down out to get free. My face/head/neck/upper shoulder suffered bruising on the RIGHT SIDE of my body from impact of the airbag. This shouldn't have been the case - the deployment should have impacted the left side of my face. I am in belief that the deployment of this side curtain airbag was late in protecting me in this collision.