2021 CHEVROLET TRAILBLAZER Unknown Or Other Problems

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

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.

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.

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

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.

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.

Park to shift error. Vehicle will not turn off while in park, instead gives an alert to "shift to park" even though the vehicle is already in park. Due to faulty park switch or wiring in the shifter assembly

My vehicle started flashing “shift to park” about 2 weeks ago, after being in a GM dealership for 18 days for repair. I immediately notified them my CEL was back on and what it was showing on my dashboard ( shift to park). I dropped it off on a Saturday and that same day they told me they could not figure out what was wrong with it. I texted the Service Advisor of the notification I was having and if that was the issue to which she did not do anything about. The issue is that it will stay on, and flash and can drain my battery out and it will not allow me to lock my car or it tells me that my vehicle remote is not inside to turn it off. When I called the dealership about it, they told me that the S.A. Did not mention the issue I was having and she was not concerned with it- and they would look at it but will charge me for it ( while they already had possession of my vehicle). Dealership told me they saw no code for it and it wasn’t showing up on their end when they had my car. But the day I picked it up, and put it in park it started doing the exact issue I told them about. They told me they were getting my car to “act up” and they would of clearly seen the notification on my dash and did not look into it. Insurance has not looked into it and no one seems to be able to help me and I’ve already paid $1000.00 to two different body shops to fix my car and it’s still having that issue. At current, it’s flashing “shift to park” and I can’t get it to stop and I have to keep turning my car on. It’s a huge safety issue as it’s going to drain my battery out or cause me to not be able to start my vehicle

multiple times of getting the warning that i need to "shift into park" when the vehicle is in park. i did have fixed at my local dealer but did have to pay, I know this is been an ongoing issue with many trailblazer . Chevy should look into recalling the failing part.

The transmission shift control / transmission range sensor / shift interlock solenoid in my Chevrolet Trailblazer is malfunctioning. When I shift the vehicle into park, it fails to recognize the gear change and displays an error message stating, “Shift to Park.” As a result, I'm unable to shut off the engine properly, which poses both a safety risk and a serious inconvenience. I strongly urge the NHTSA to investigate this issue thoroughly and consider issuing a recall to address the defect.

I get a shift to park warning after putting the car into park. I’m not able to turn the car off, this has drained the battery and caused safety issues for me and my child

The vehicle keeps vibrating binding lurching jumping when driving going in reverse and turning the car in a circle I took it in they replaces they rear end and transfer case on it there was a lot of metal shavings in both no clue or explanation why got the vehicle back over a month later to the same problems as before took it back in they went for a test drive with us and verified its still happening and that day they shrugged shoulders they dont know why or what's happing they supposedly got ahold of trailblazer and they said this is normal for these vehicles and safe to drive .the vehicle dont sound or feel very safe at all I am reaching out for help with this the vehicle does this every time you drive it

Upon starting vehicle it would idle for 30secs to 1 minute before shutting completely down, then would prompt to engage brake and push start/stop button to turn back on. Two different times while driving at 60+ mph the vehicle completely stalled losing power steering and brakes. Both times when the vehicle shut down it would say to push start/stop button and then place vehicle in park, engage brake to restart. When the vehicle stalled I was getting onto a highway and was about 2 seconds from being hit from behind by a semi while I was at almost a standstill while they were doing 70+. Have taken it back to the dealership both times and it died on them once but there is no solution to this issue as no codes come up.

I could turn off the engine after driving, but the key stays in the position between the engine being on and the car being off (for example when you can listen to music but your car isn’t running). The battery light came on after the issue started and so the car service place charged us to replace the battery, because they had to turn on and of the car a lot and the car had to continue to run. I took it to a car service place and they ran tests and called Chevy test support to run diagnosis tests. They can’t figure it out. They think it might be the body control module. Not sure what that is. The car only has 31,000 miles on it and this is a safety issue because what if this happens and the steering wheel locks or it becomes a rolling hazard. This would affect the driver and others. There were no lights or errors indicating a problem before this happened.

Check engine light is on. Took to O'Reilly and had them put their tester on it to get the codes. Codes show P0700 and P1467. My cruise control and auto start will not work. My mechanic said this is an issue that should be fixed free of charge but no recalls show for my vehicle.

Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I’m never buying American again. I could’ve been really hurt when my engine cut off.

Found standing water in spare tire well. Back seat constantly wet, growing mold. The whole back area is moldy, mold under driver seat. My back passenger door seal has mold and water. Seat belts in back, MOLD. I had to wear a mask just to drive to the store. The mold turning black the day I took it to a shop for a water test. It's been two days and I still haven't heard anything about the water test.

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.

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.

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.

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.

Unknown key keeps getting stuck in the ignition.

My key gets stuck in the ignition almost every time I turn the car off. In order to get it unstuck I have to restart the car, put the car in drive or reverse, put the car back in park and then try to take the key out again. This has to be repeated sometimes as many as 10 times for it to finally release the key. I have read about many other people having this same problem and eventually the key not coming out at all and they've had to have it cut out. I have an appointment at a dealership for August 1st (the first available appointment) and my vehicle is just out of warranty so I'm told I have to pay to have this fixed. This is clearly a manufacturers defect and first starting happening before my vehicle was out of warranty, I just didn't realize that it would become a much bigger issue the longer it kept happening.

I first noticed an issue about a year ago when an electrical blaring noise was coming from my speakers followed by popping and crackling noises. I have taken my car into the dealership several times without resolution. Since then, I have noticed excessive humidity in the vehicle and recently found the trunk was flooded. I took the vehicle in to the dealership again, and they say the interior fabric is compromised now and the electrical sounds I was experiencing are coming from electrical damage inside the body. I have now read another review online from someone who had the exact same experience with this make and model. I believe this is a safety hazard to drivers who are unknowingly driving around for months in a vehicle that could be flooding and could cause severe damages like in my case. I have documents to support these claims, but I do not have electronic copies. If someone reaches out to me I can provide hard copies.

Shift to Park comes on after vehicle is shifted into park and the vehicle is turned off. You have to hit the gear shift or jiggle it to register it is in park or start the vehicle and shift to neutral and back to park and turn it off a few times to get it to register it is in park.

Turbo has went out twice or the piece that makes it go and has been replaced under warranty once and is going in the shop again

The radio screen is constantly going black or glitching, the music will silence, the back up camera will stop working. Carplay does not connect often, also glitches in and out when driving. There is little to no air or heat coming from the floor panel when feet option is pressed for climate. In order to feel heat or A/C have to be on face option.

When putting the vehicle in park I receive a messege saying "shift to park" this means the vehicle is not recognizing I put the vehicle in park. This is a safety issue my truck is not even off when this message pops up. GMc knows about this issue and their is not a recall on it. Dealer will not fix the issue becazue it actually has to say that messege when they are diagnosing the problem. It does it randomly but more frequent now. I call gmc the only thing they can tell me is record it when it does it as a paper trail I guess. They are saying the same thing the dealership is saying they can't diagnose the problem without the shift to park messege. Been having this problem when I hit 20,000 miles

I was waiting at the traffic light and the car just shut off without any warning and it wouldn't start back up. After a few minutes a warning came on that said "battery low-start vehicle." When I tried to start the vehicle it still wouldn't start. Then all of the warnings lights were flashing on the dashboard the wipers were moving back and forth but the vehicle still wouldn't start then the car just shut down and and nothing would come on. This happened in the lane of traffic at the red light. With the hazard lights not working it was a dangerous situation. The police were called to be there with me until the tow truck came so no one would run into the vehicle. I feel that the fact that no warning light flashed before the car just shut off was very dangerous especially after it wouldn't start back up. I had just purchased this vehicle (used) December 2022. I am very frustrated because now I don't have a vehicle to get to work. I only purchased this vehicle because my KIA was stolen and totaled October 2022 and I needed transportation to get to work. The car is at a Chevy Dealership now so they can try to figure what's wrong with the vehicle.

When I shift the gear from PARK to DRIVE & step on the GAS, the vehicle hesitates to DRIVE. I have to turn off my vehicle, play with the gear shift, then shift again to get it to move. The other day I put my vehicle in DRIVE and it rolled back and REVERSED. Nobody can figure out what’s wrong with my vehicle. The check engine light comes on then goes off. Nobody can get the problem to duplicate. A ticket to GMC was submitted and from them, my vehicle seems fine on paper. This is a safety hazard. I’ve taken my vehicle to a Chevy dealer and also to a GMC dealer multiple times.

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

Vehicle makes a loud popping noise while connected to Apple play with usb cord while slowing down and while just driving.

Rear back up camera view on display screen image is fuzzy or shorts out for a second then corrects to give proper image.

Started having issues where all the electronics on the car go blank/dead. So far when this has happened it has not caused the car to be inoperable but in the meantime I have found that the car is leaking (seriously leaking) under the entire drivers seat was soaked. I noticed a while back that it smelled like mildew in the car, I had it cleaned and put a damp rid pouch in there, that basically absorbed in 2 days, but never could find the water. This week I found the water...under the drivers seat. This car has been leaking for 2 years! Last night, I get in the car and plug in my phone to charge and get a message of LIQUID DETECTED Charging is not available because liquid has been detected in the lightning connector. Disconnect to allow the connector to dry. At the same time the phone was plugged in everything started to crackle and squeal through the radio and then no radio at all. There is no way all these components are not damaged. Meanwhile I have take it to a dealer for them to do a "water test", I have zero confidence that this water test will yield any positive results and I am without a vehicle . So I am trying to get this info out anywhere I can to see if other people had similar issues and what can be done. It can not be safe to drive a car that the electronics have water damage.

Cutter Chevrolet in Honolulu had a recall on my vehicle for a jack unable to support the vehicle. I had the appointment to address the recall. Their solution was to remove the jack without a replacement. Now I no longer have a jack. It will now cost me to have someone else to change a wheel that I can do myself. I have a spare tire with no jack in my new vehicle

TWO TIMES I HAVE HEARD A LOUD POP NOISE COMING THROUGH MY STEREO SPEAKERS. I NOTICED IT WHEN APPLYING THE BRAKES. I WENT ON A TRAILBLAZER FORUM AND A FEW OTHERS HAD REPORTED THE SAME THING. I HEARD THE POP TODAY WHEN I WAS PULLING INTO A PARKING SPOT AND APPLYING THE BRAKES.

Mileage: 2,000

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