2021 Chevrolet Suburban forward collision avoidance problems
11 owner complaints filed with NHTSA name the forward collision avoidance on the 2021 Chevrolet Suburban — 6% of all complaints for this model year.
What owners report
“Lane departure assist, adaptive cruise control, auto emergency braking, adaptive high beam, forward collision warning system became unresponsive while driving on highway during trip. Had to take vehicle into GM dealership for ADAS camera replacement.”
filed Apr 8, 2026
“The check engine and traction control light came on in my car. This was accompanied by a clanking sound, shaking. The panel said “ SERVICE ESC” “ service traction control” and “ forward collision system unavailable” The Chevrolet light logo on the back of my car will also not turn off occasionally…”
filed Feb 21, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Forward Collision Avoidance problems in other Suburban years
| Year | Reports | Share |
|---|---|---|
| 2024 Suburban | 2 | 5% |
| 2023 Suburban | 4 | 4% |
| 2022 Suburban | 3 | 3% |
| 2020 Suburban | 1 | 2% |
| 2019 Suburban | 2 | 3% |
| 2017 Suburban | 2 | 1% |
| 2016 Suburban | 4 | 2% |
| 2015 Suburban | 3 | 1% |
| 2011 Suburban | 1 | 1% |
| 2010 Suburban | 1 | 1% |
| 2007 Suburban | 1 | 0% |
| 2003 Suburban | 1 | 0% |
Other reported problem areas on the 2021 Chevrolet Suburban
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.