Two problems related to warnings have been reported for the 2021 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 GMC Sierra 1500 based on all problems reported for the 2021 Sierra 1500.
I am writing to complain about that general motors has issued a retrofit program for 2022 model vehicles that did not come with safety features due to the microchip shortage. I purchased my vehicle new in 2021 and the vehicle did not have the option of having safety features at the time of purchase. I find not having the safety features in a large vehicle to be a safety concern for those that use the vehicle or around the vehicle. General motors should add the 2021 model vehicles that also did not have the ability to have those features on them added as a part of their retrofit program.
The front camera stopped working, causing the safety systems to shut off. Codes u026a & u0078 "no communication failure". The camera was ordered and replaced.
| Adaptive Cruise Control problems | |
| Warnings problems |