2021 GMC Yukon forward collision avoidance problems
18 owner complaints filed with NHTSA name the forward collision avoidance on the 2021 GMC Yukon — 6% of all complaints for this model year.
What owners report
“I bought the vehicle used with 40,000 miles it’s has 100,856 now the engine shot off while I was driving and brought it to the GMC dealer that GM instructed me to the dealer had me pay 284.95 for inspection and then try to charge me 1284.95 for a complete tar down of the engine because of misfiring…”
filed Jun 30, 2026
“I was driving and a message popped up "Service Traction Control", then another message popped up "Forward Collision System Unavailable". Then the car started making this knocking sound and every time I would try and accelerate there would be a loud sound and almost a pulling stopping it from…”
filed Jan 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Forward Collision Avoidance problems in other Yukon years
| Year | Reports | Share |
|---|---|---|
| 2025 Yukon | 5 | 10% |
| 2024 Yukon | 10 | 11% |
| 2023 Yukon | 6 | 3% |
| 2022 Yukon | 4 | 2% |
| 2020 Yukon | 1 | 3% |
| 2019 Yukon | 1 | 2% |
| 2018 Yukon | 1 | 1% |
| 2017 Yukon | 3 | 2% |
| 2016 Yukon | 5 | 2% |
| 2015 Yukon | 1 | 0% |
| 2014 Yukon | 1 | 2% |
Other reported problem areas on the 2021 GMC Yukon
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.