Table 1 shows two common lane departure related problems of the 2021 Chevrolet Blazer.
| Problem Category | Number of Problems |
|---|---|
| Warning problems | |
| Assist problems |
The radio and all the sound notifications such as turn signals, emergency flashers, crash avoidance, cross traffic, lane departure, and the use of the emergency onstar system do not work. This has been addressed in gm service information #pit5971b: loss of audio and onstar led is red - (Apr 3, 2023) gm appears to be addressing this as an inconvenience of not having the entertainment of the radio and not the safety features associated with it. This also includes the use of hands-free cell phone.
"driver assisted reduced use drive with care message" comes on when it is over 70 degrees outside. The temperature gage reads zero, a/c does not work, when the car is turned off the fan runs on high for an extended period of time. Showing code p0128 used car purchase, came on 3 days after receiving vehicle from the dealership. Reset the code came on again 2. 5 weeks later (5/3/2025) when the outside temperature was in the 70's.