2021 Chevrolet Trailblazer

These are unverified consumer reports filed with NHTSA, shown as submitted.

• 12/31/2025· UNKNOWN OR OTHER

  The rear hatch interior trim that seals the hatch from exterior elements and sounds continuously comes off, even after having dealership to repair/replace. The trim will not remain in place and is a distraction while driving and hearing out of vechile noise. And the winter weather causes car not to maintain a constant heat temp

• 12/31/2024· SERVICE BRAKES,FUEL/PROPULSION SYSTEM

  I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe.

• 12/27/2024· ELECTRICAL SYSTEM

  I have had this vehicle at the garage for the 4th time in 2 months for the same issues. It would not start. the fuse box keeps blowing. The starter was replaced and the Alternator was replaced and the fuse box 3 times so far. It is in the auto repair shop now for the same issues. the mechanic has done an inspection and diagnostics and cant find what is wrong. There were no warning lights to warn me of anything. I have spent 4500+ so far in repairs and more to come.

• 12/22/2023· BACK OVER PREVENTION

  The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while operating the vehicle at night, while reversing the vehicle, the back-up camera image became extremely bright creating a visibility hazard for the driver. The contact stated that the display screen was too bright to see images at the rear of the vehicle. Additionally, while driving at an undisclosed speed, there was an extremely loud audible squealing sound inside the cabin of the vehicle. The contact stated that after a while, the vehicle ceased. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 32,000.

• 12/21/2025· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  After trying to remove rhe key from ignition, it gets stuck and won't come out unless I turn the car on, shift it into drive, wiggle the steering wheel, and try it again. Sometimes it works. Alot of times it take 5-10 min to get it out.

• 12/19/2021· STRUCTURE,WHEELS,FORWARD COLLISION AVOIDANCE

  I have had multiple issues with the car since I've purchased it. The brakes continuously make noise, and the automatic Emergency Braking DOES not work. The tire pressure sensors don't work, they have the wrong tire pressure for each tire, and the tires constantly over inflate. Also, my front bumper is coming off. I've taken it to the dealership for all of these things, the dealership said the brakes seem fine, the front bumper clips seem to have warn down for some reason, and that they reset my tire pressure. There was no permanent solution. They put a band aid on my problem and I still have all of these issues.

• 12/18/2020· UNKNOWN OR OTHER

  THEIRS A DELAY ON BACKUP CAMERA.ALSO ON ANDROID PLAY IT SHUTS OF AND ON ON THE SCREEN.

• 12/17/2022· AIR BAGS,FORWARD COLLISION AVOIDANCECrash

  Someone pulled out in front of me going 45 mph and totaled my car when they smashed into the front drivers side of my vehicle. My airbags didn’t deploy and no warning notifications or emergency braking ever occurred. This is dangerous and was severe enough to total my vehicle. My airbags should have deployed. No warning lights or any other issues when it occurred. It was inspected by insurance and determined a total loss.

• 12/15/2022· ELECTRICAL SYSTEM,UNKNOWN OR OTHER,SERVICE BRAKES

  Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive.

• 12/03/2024· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  2021 Chevy Trailblazer When I go to park my car, there is a constant error of 'Shift to Park'. The car is already in park. I must wiggle the shifting knob, restart my car, or drive around before my car will turn off and recognize that it is in park. My safety is compromised each time I get in the car. If the car cannot recognize it is in park, what happens when it can't recognize it is in drive as I am on the road? Or reverse? Or any gear? My safety is also affected because my car does not realize it is in park, and at times I cannot exit my car. I am highly concerned that the car does not truly know which gear it is in and it compromises not only my safety, but the safety of my family/other passengers, and other drivers on the road. The problem is a known problem and there is an active fix bulletin for the problem. GM cannot get the part in stock - it has been 5 weeks. It affects not only my year, make, and model, but many others too. GM continues to sell the cars with this known safety defect. This defect has been confirmed by the dealership, and GM has sent out a known fix for the issue (TSB PIT5616A). There is also a class action lawsuit for this specific issue with GM. GM's solution to me is to trade in my car for a newer model rather than waiting for the part. In addition, many cars of my year, make, and model require a whole new transmission, but GM will only replace the shifter harness to start with, if and when they receive the part. I was told that the part could take up to six months to receive. For an issue that has been happening since at least 2019, this is unacceptable. The only warning that I receive is when I am trying to shut off my car and it will not shut off due to this error. This has been happening to my car for 2 months, but there seems to be a history of this defect since at least 2019.

• 11/28/2024· ELECTRICAL SYSTEM

  While driving the car will cut off and on real quick. The headlights will flash on their own. Security systems cuts off and the brakes function messes up.

• 11/26/2021· SERVICE BRAKES

  Brakes squeal when in drive. Any amount of pressure on the brakes the car shakes and a loud squeal begins. Bought the car new in May and this issue started in June. Have taken the car to the dealership since June to try and figure out the issue. Dealership states that rotors and brake pads are in perfect condition, thus the issue being the actual brake component. Dealership will not fix despite car being under warranty because there is no bulletin out for car model. I am very concerned for my safety and the safety of others when driving, especially since the dealership knows their is an issue and will not fix it.

• 11/25/2024· POWER TRAIN

  This vehicle has approximately 35,000 miles of driving time on the odometer. This car will not recognize that the shift lever has been place into the Park position. Doors will not lock when the car is turned off. If trying to seek refuge from an assailant, the car will only alarm but will not lock the doors for safety. Also, while storing items in the vehicle while at a metropolitan hospital (where I work) or a metropolitan grocery/fuel station, the vehicle will only alarm but will not lock under any circumstance. The car is responding as if the car is still in a movement gear position and will not recognize the shift position of Park. I have heard of many similar documented cases regarding this particular shift issue in relation to the 2021 Chevrolet Trail Blazer yet there has been no related recall related to this ever more prevalent repair need. some reports (not ours...) report the automobile transmission converting to park while in movement and while in a selected movement shift position. I do not want this to happen to me. My car (VIN # [XXX] ) is at the dealership for repair. The dealership informs us that the needed part(s) are currently under manufacture at a supplier and that there is no estimated date for the part(s) arrival or date to complete this repair. The car cannot be driven safely in a metropolitan area because in cannot be locked with the ignition off and the car just continues to alarm if walked away from. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 11/24/2021· TIRES

  225/60R17 99H Bought trailblazer brand new from dealer March 2021. I've owned many cars, street cars, etc. I've never had a tire with 10K miles develop a bulge in the side. I took back to dealer as warranty book showed covered to 12K, but they said 'upon inspecting, it appears from a pothole'. That was strange to me, as we never hit anything or the rim does not have a mark or bent or anything.

• 11/23/2022· ELECTRICAL SYSTEM,BACK OVER PREVENTION

  "Shortage in radio" according to Chevrolet's diagnostic. Caused black screen, no back up camera, no beeping when in reverse and coming close to another object, no sound when blinkers or hazard lights are on, no radio, no power to front charger, no ability to use front auxiliary cable. Initially a loud buzzing noise which could not be controlled by the volume dial. Problems began on or around October 7, 2022. Purchase was made September 2020. Vehicle is available for inspection upon request. Problem can be reproduced/is constant. Problem was reproduced by dealer. Vehicle was inspected by dealer. There were no other warning lamps.

• 11/23/2020· VEHICLE SPEED CONTROLCrash

  TL* THE CONTACT OWNS A 2021 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT UPON ATTEMPTING TO PARK HER VEHICLE AT 5 MPH, THE VEHICLE INDEPENDENTLY ACCELERATED FORWARD WITHOUT WARNING, JUMPED THE PARKING MEDIAN AND CRASHED INTO A BUILDING. THE AIR BAGS DID DEPLOY UPON IMPACT. THE CONTACT SUSTAINED MINOR BRUISING FROM HER LAP BELT BUT DID NOT NEED MEDICAL ATTENTION. THE AUTHORITIES ARRIVED AT THE SCENE AND A POLICE REPORT WAS FILED. DUE TO THE FAILURE, THE VEHICLE WAS TOWED TO SID DILLON CHEVROLET - FREMONT(2500 E 23RD ST, FREMONT, NE 68025) WHERE IT HAD REMAINED IN THEIR POSSESSION TO DETERMINE THE FAILURE. THE MANUFACTURER HAD YET TO BE NOTIFIED OF THE FAILURE. THE VEHICLE HAD YET TO BE REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 6,000. *JB

• 11/22/2024· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  When I place my car in park, a "shift to park" message appears on the dashboard. I am unable to fully turn my car off and the car will ding at me. I have tried driving around the parking lot, pushing the shifter from side to side and into another gear then park again, going forward and backward, but the problem still exists. It started to occur more frequently, until it occurred every time I drove the car. I'm not sure if the car is actually in park, so when I finally get it to turn off, I place the emergency brake on. I can not physically turn the car off when this message appears on the dashboard. I took the vehicle to the service center of the dealer on 11/12/2024. I was told this has been a big problem with GM cars and they have had many cars coming in with the same problem. Currently the part is on backorder, and there is not an ETA as to when it will be available due to high demand for this part.

• 11/22/2021· EQUIPMENT

  The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment). The contact called a local dealer and was informed that the only resolution for the recall would be to remove the jack stand inside the vehicle. The contact was informed that the jack stand would not be replaced. The manufacturer was not made aware of the issue. The vehicle was not yet serviced under the recall. The contact had not experienced a failure. Parts distribution disconnect.

• 11/20/2025· ELECTRICAL SYSTEM,ENGINE

  The issue is the yellow engine light lit up on the dash of my 2021 Trailblazer in late August of 2025. At the same time, the cluster displayed the message "Engine Power is Reduced". Over the next few weeks my car engine would randomly stall out while I was driving! As you can imagine, this is a very unsafe driving condition. My car stalls and I'm in traffic and have no ability at all to control the vehicle. This happened at least 4 times to me. When I checked the On Board Diagnostic codes on my vehicle the system reported back U060F (Mass Air Flow Sensor). I searched online for this condition with 2021 Trailblazers and found GM Service Bulletin number 22-NA-008, dated March of 2022. This Service Bulletin clearly shows that Chevrolet were well aware of a problem years before it occurred to my vehicle. So, in October I took my car to Bowman Auto Center, explained all of the above to them, and I mentioned the Service Bulletin that I found. Their investigation found that, indeed, the cause of my engine stalling was broken wires to the Mass Air Flow sensor (MAF sensor). Bowman repaired my car and billed me 364.44 as shown on the attached 2-page Repair Order. I tried to make the case with the Bowman Service Department that this should be a warranty repair, and paid by GM. Bowman responded that it was only a Service Bulletin from GM for the issue, and the customer is responsible for payment. I am astonished that repair of this product Design Failure, which results in an unsafe driving condition, would be paid for by the customer! The reason I call it a Design Failure is because NO wiring should break during the life of a vehicle. Engines rock and move, and the Trailblazer design should have compensated for this engine movement by having a sufficient slack loop designed into the wire harness leading to the Mass Air Flow sensor. I filed a case with Chevrolet, number 80982656, but they declined my request for reimbursement .

• 11/20/2024· POWER TRAIN

  Receiving "Shift to Park" alert when vehicle is already in Park.

• 11/18/2021· ELECTRICAL SYSTEM

  The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact had to restart the vehicle to correct the failure. The failure was intermittent. The vehicle was taken to the dealer however, the dealer could not duplicate the failure. The vehicle was taken to another dealer, Frontier Motors Incorporated (31406 US-18, Winner, SD 57580) on numerous occasions and diagnosed with electrical system failure. The dealer reprogrammed the power steering angle sensor and rear differential clutch sensor; however, the failure recurred. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure. A case was being processed by the Better Business Bureau under the Lemon Law and was awaiting final repair notice from the dealer. The failure mileage was 1,574.

• 11/15/2024· UNKNOWN OR OTHER

  Our 2021 Chevrolet Trailblazer was purchased last December in 2023. For at least a week now the "shift to park" alarm goes off, practically every time we put it in park & turn the engine off. It wont shut up. The lights stay on, and it won't let you turn the alarm on. Sometimes if I wait and go back & jiggle the gear shifter through different gears, and turn the engine on & off it might stop, show me a "check the rear seat" warning, and be alright( until the next time I drive it and try to park it). It's becoming more & more persistent. I checked with the Chevrolet dealer, and they said the vin number isn't listed under the recall, so GMC won't cover it. We don't have the money to take care of it ourselves, and don't know what to do.

• 11/15/2024· POWER TRAIN

  The contact owns a 2021 Chevrolet Trail Blazer. The contact stated that after shifting to the park position the message "Shift to Park" was erroneously displayed and the vehicle would not shut off. The contact had to shift multiple times before the transmission switched to the park position and the engine was able to be shut off. The vehicle was taken to the local dealer who diagnosed that the shifter was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was also notified of the failure and confirmed that the part was on backorder. The failure mileage was 16,600.

• 11/13/2024· POWER TRAIN

  The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while the gear shifter was in the park(P), the message “Shift to Park” was displayed. The vehicle was taken to an independent mechanic, who determined that the gear shifter needed to be replaced. The mechanic informed the contact to use the parking brake while parking the vehicle. The contact called the local dealer and was informed that parts were on back order. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 16,000.

• 11/13/2020· SERVICE BRAKES

  WHEN PARKING OR ABOUT TO MOVE AND YOU PUT FOOT ON BRAKE AND GET INTO A GEAR A LOUD AUDIBLE POPPING NOISE COMES THROUGH THE STEREO SYSTEM. IT IS VERY LOUD AND NOT BASED ON HOW LOW OR HIGH THE VOLUME OF THE STEREO IS SET. THERE IS A THREAD ON TRAILBLAZERTALK.COM ABOUT IT NOW. HTTPS://WWW.TRAILBLAZERTALK.COM/THREADS/POPPING-NOISE-IN-RADIO-WHEN-BRAKES-APPLIED.244/#POST-1557

• 11/11/2025· FUEL/PROPULSION SYSTEM

  2021 Chevrolet Trailblazer check engine code P1467

• 11/07/2024· UNKNOWN OR OTHER

  I was driving on the highway and out of nowhere the exhaust pipe after the converter had fallen on the road at highway speed. It happened to be the rear pipe leading to the muffler, which is behind the rear bumper, so when the pipe fell, it fell facing the front of the vehicle. The fact that I was able to get the vehicle to a nearby rest stop safely was amazing in itself, that nothing more tragic happened at highway speed with the exhaust pipe facing forward on the ground is a miracle. How does this happen to a 3 year old vehicle? The flatbed driver said he thought there was a recall on the Trailblazer, as he had towed several with the same problem. I called GM, they assured me that there was no recall and could schedule me a service appt to have the vehicle assessed and repaired, I declined, I already have an estimate from my local repair facility, which is still quite a bit of money.

• 11/04/2024· POWER TRAIN

  After putting vehicle into park and shutting off the engine, the warning appears “shift to park” and will not allow the vehicle to completely shut off. For the past few months I have been able to maneuver the shifter and the car recognize it is in park, however this past weekend nothing would work and the vehicle stayed in accessory mode until the battery died. I have spoken to two local dealerships and they are aware of the problem. I am currently awaiting a local repair shop to research the issue and get back to me if they can repair it and what the cost will be. This began in September, I am unsure the exact date. Upon researching this, there are hundreds of vehicles that have had or are having this issue going back as far as 2018 at least. General Motors has been aware since then and only issued an inquiry to dealerships last November. This is clearly a defect in manufacturing that should have been recalled and remedied long before now. I am without a vehicle and out of pocket for a repair that should not have occurred.

• 11/04/2024· ENGINE

  Reduced engine power, code P0014. Camshaft actuator oil control valve bolt stuck open. All the signs and symptoms per bulletin released by NHSTA to repair if not sold yet. Extremely hazardous when accelerating to get on highway and engine power reduces.

• 11/03/2021· SERVICE BRAKES

  The brakes squeak and squeal at low vehicle speeds including when in reverse.

• 11/01/2024· POWER TRAIN,ELECTRICAL SYSTEM,ENGINE

  On [XXX] I shifted my 2021 Chevy Trailblazer to park and and was unable to shut off the vehicle. When I shifted it to park it kept displaying an error "Shift to Park" on the dashboard, but the shifter knob was correctly in park. I attempted to press the power button to turn off the car and it wouldnt do anything but beep. I tried multiple times to shift to park to get the car to recognize it was actually in park and turn off the vehicle but I was unable to do so. I was frantic and panicked to find I could not turn off my vehicle as I park on a apartment complex lot. That day I took the car to Henna Chevrolet in Austin Tx for repair. They said the part was on backorder from GM with no ETA. It is now November 1st and there is still no ETA on when I will get the part for my car from GM. This has been going on for 3 weeks now with no end. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 10/30/2025· POWER TRAIN

  The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while attempting to park, the vehicle failed to shift into park properly, and the message “Vehicle Not in Park” was displayed. The contact stated that several attempts were needed before the transmission was able to be shifted into park. The vehicle was taken to the dealer, where it was diagnosed and determined that the shifter gear assembly had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 40,000.

• 10/28/2020· STRUCTURE

  PURCHASED ON 7/24/20. ON 8/1, FOUND A DEFECT SPOT ON GRILL. DEALERSHIP ORDERED NEW GRILL. ON 8/9, NOTICED PAINT BUBBLING/PEELING ON HOOD. 8/15 - 8/20, DEALERSHIP HAD GRILL REPLACED AND HOOD PAINTED. 8/21, NOTICED HOOD NOT PAINTED COMPLETELY. 8/24 - 8/28, DEALERSHIP HAD VEHICLE TO REPAINT HOOD. 9/17 FOUND FENDER CLIPS ON FRONT PASSENGER SIDE MISSING.10/2 BACK TO HAVE CLIPS INSTALLED. DEALER DIDN'T ORDER ENOUGH CLIPS SO WAITING ON MORE CLIPS TO ARRIVE. 10/16 BACK TO HAVE REMAINING CLIPS INSTALLED. 10/27 NOTICED PAINT PEELING UNDER PASSENGER SIDE HEADLIGHT. I HAVE AN OPEN CLAIM WITH GM REGARDING ALL OF THIS.

• 10/27/2025· ELECTRICAL SYSTEM,SERVICE BRAKES

  There is a faulty sensor on this car that does not allow the car to be properly parked and gives the error message "Shift to park" on the dashboard. You have to turn the car back on and mess with the shifter multiple times to get it to register that it is park. This usually takes about 10 attempts every time you need to park the car. There are other reports regarding this exact issue on this car that further validates that this issue is relevant and needs to be addressed through a recall.

• 10/25/2022· ELECTRICAL SYSTEM

  Shortly after purchasing my trailblazer in 2020 I noticed a glitch in the speakers where it would make a crackling noise (mainly when the car is off). it hasn’t been consistent when it happens, but since observing the issue I notice the issue happens most often when I close the trunk (by pressing the button on the trunk door.) no warning lights shows when this happens. Although this doesn’t seem to be a harmful safety issue, anything electrical can result to something more serious. I plan to bring this issue up at my next oil change at the dealership.

• 10/21/2025· UNKNOWN OR OTHER

  THE LOCKING MECHANISM HAS WENT OUT IN ALL DOORS. UNABLE TO UNLOCK / LOCK AND ONCE THEY ARE LOCKED, UNABLE TO OPEN THE DOOR UNLESS IT IS OPENED FROM THE INSIDE. I REPLACED THE DRIVERS SIDE DOOR LOCK ACTUATOR AND MECHANIC STATED THEY ALL NEEDED TO BE REPLACED.

• 10/21/2024· POWER TRAIN

  When attempting to park the car I am able to shift into park, however, I get a message on the dashboard to “shift to park”. Dashboard also shows a “p” to reflect car is in park creating a contradiction on the dashboard of displayed items. When this occurs the car will not shut off. Dealer service has indicated this is not producing an error code, they have had many complaints, and the issue is not covered by power train warranty and part is back ordered. I am very concerned about the safety of my vehicle given the indicated failures of the shifting mechanism and Chevrolets inability to remedy the issue due to unavailable parts.

• 10/18/2024· ELECTRICAL SYSTEM

  After placing the vehicle in park I get the “shift to park error”. I can’t leave the vehicle, or lock it. It can take any where from 5 to thirty minutes for it to actually read the shift. My car is now not reading my key 80% percent of the time. The vehicle turns off while driving down the road. Saying no “remote detected”. The key has been locked in the Car twice. Which should be impossible. I’ve been stranded outside of my vehicle at night in Atlanta for long periods of time. Trying to get the vehicle to unlock because it is not reading the key.

• 10/17/2023· FUEL/PROPULSION SYSTEM

  Very strong gas smells coming from under the hood. After driving a few miles, fumes enter the passenger compartment. Had to stop parking it in our garage for fear of a fire before I could get it into the dealer. I've been told it's a fuel leak associated with the fuel rail system. I'm 20 days past my warranty and only at 29,000 miles. It's a nearly $2000 fix. GM was aware of the problem in 2021 as there is a service bulletin for this item. I should have been notified in 2021 that there was a possible problem which could lead to a fire or explosion.

• 10/16/2025· POWER TRAIN,ENGINE

  The contact owns a 2021 Chevrolet Trailblazer. The contact stated that after reversing, the transmission was shifted to drive (D), but the vehicle failed to immediately recognize the selected gear. The check engine warning later illuminated. The vehicle was taken to an independent mechanic, who determined that the under boost, transmission control module, and transmission control solenoid had failed, and there was a loss of communication with the radio and loss of communication with the telematic control module. The mechanic advised the contact to take the vehicle to the dealer for assistance. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 42,000.

• 10/07/2025· UNKNOWN OR OTHER

  I have a shift to park message that is malfunctioning and I can't shut off my car.

• 10/04/2021· EQUIPMENT

  The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment) however, the part to the recall repair was unavailable. The contact took the vehicle to the local dealer and it was confirmed that the part was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

• 10/03/2021· STRUCTURE

  I was driving on the freeway and my panoramic moonroof literally exploded from the inside out. It sounded like a gunshot almost. Then the glass shattered. I am glad that the screen was closed otherwise all the glass would have gotten in my car.

• 10/01/2025· STEERING,VEHICLE SPEED CONTROL,ENGINE

  Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say it’s the turbo charger. I think it was the turbo charger from the get go! What’s the purpose of the diagnostics ($250)? Isn’t it to pinpointed the issue? 1st day, took him 4 hours to say it was the fuel injector. 2nd time around it took 3 days. I kept showing them and telling them it’s the throttle control system! They’re trying to rip me off! Mechanic is saying he’s been test driving it and no issues. I took a photo of my mileage before I handed them my car and it was 79,190. The mileage today says 79,191. How and where is he test driving it if it’s only been 1 mile? Reverse and forward ? They’re lying

• 09/29/2025· UNKNOWN OR OTHER

  Shift to park error. I put the car in park but it tell I get a notice to shift the car in park when it’s already in park. Beeps and continues to tell me to shift my car in park when it’s in park. Turn off the car get out and close the door and the notice and beeping continues while the car is off and in park. Been happening since I bought it.

• 09/28/2025· UNKNOWN OR OTHER

  Vehicle has given me a "Shift to Park" message when the sift is all the way up and off at park. You basically has to push hard for the message to go away.

• 09/28/2020· SERVICE BRAKES

  BRAKES REQUIRED EXTREME PRESSURE TO STOP THE VEHICLE. ACCIDENT BARELY AVOIDED DURING RUSH HOUR TRAFFIC ON BUSY SURFACE ROAD.

• 09/27/2024· STEERING

  Service power steering light It turns on and off frequently

• 09/24/2024· SUSPENSION

  The rear shocks on the 2021 trailblazer are faulty and are blowing out causing the rear tires to bounce and eat away at the tread exposing cords becoming a safety hazard. The rear shocks blowing out is happening on several 2021 Trailblazers causing there to be a national back order leaving these vehicles and drivers to be at risk of serious accidents and injuries.

• 09/23/2022· POWER TRAIN

  The vehicle began to give the error Shift to Park when the vehicle was in park and after the power was shut off. Because of this I cannot safely turn off the vehicle because it cannot recognize it's in park and will run the battery down whenever I use the vehicle. This problem has been previously presented in other models manufactured by GM. I am taking the vehicle in for inspection at a local Chevrolet dealership on 9/24/22 at 8 am. This issue first started around the second week of September this year with one or two errors here and there. Now, it happens every time I drive the vehicle.