2021 Chevrolet Trailblazer: backup camera failure

Filed Jul 11, 2026 · Electrical · IN

The infotainment system which controls the radio,backup camera, onstart,and other safety components stopped working i took it to a gm certified dealership and it has just been all bad from there. gm has horrible customer service and so does the gm certified shop in michigan city i took my truck in that I only had for 11 months because the infotainment center went of paid for two diagnostic tests they still couldn't] find the issue and now they they're changing me 1,037.76 for a radio which they dont even know if it's going to fix the problem which if it doesn't then I have to pay more money for another diagnostic test and more parts and because I got mad and said I'm paying for a guessing game the dealership told gm that because I had some aftermarket equipment in my vehicle that that caused the issue bullshit the stuff never got plugged into anything at that point the day of my appointment with the audio shop the screen went black with no sound they're all full of shit and didn't want to take responsibility for the widely known issue with the telemedic system

Filed Jun 18, 2026 · Electrical · IN

My 2021 chevy trailblazer rs is experiencing issues with the infotainment system and the onstar module they have stopped working and I have no backup camera and this issue is a safety concern to me and anyone who rides with me i have contacted both gm and onstar and got nowhere with them after I had a diagnostic test done on 6/18/26 they recommended replacement of the whole system

Filed Feb 6, 2024 · Electrical · FL

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.

Filed Dec 22, 2023 · Driver assistance · 32,000 miles · PA

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.

Filed Nov 23, 2022 · Driver assistance, Electrical · NJ

"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.

Filed Apr 21, 2022 · NV

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

Filed Dec 18, 2020 · NJ

Theirs a delay on backup camera.also on android play it shuts of and on on the screen.

Filed Sep 13, 2020 · Lights, Visibility · 50 miles · AR

When it is dark outside and you put the vehicle in reverse, the lights next to the back up camera causes the screen inside the car to show bright white. There is no way to shut the screen off when in reverse. I have turned the brightness all the way down but it is still very bright making it impossible to see your surroundings safely. I have almost hit a tree and drove into a ditch trying to reverse at dark. This is very dangerous and needs to be fixed.