2023 Chevrolet Trailblazer: problems, recalls and reliability

“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.”Owner report · Power Train · Aug 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.”Owner report · Electrical System · Jun 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.”Owner report · Unknown Or Other · May 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.”Owner report · Engine And Engine Cooling · May 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.”Owner report · Engine · Mar 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.”Owner report · Electrical System,Unknown Or Other · Feb 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.”Owner report · Electrical System,Unknown Or Other · Jan 2026