2021 Chevrolet Tahoe Forward collision avoidance Problems
- Complaints
- 21about this part
- Share
- 5%of 462 total for the year
- Median mileage
- 9,250miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 21 complaints about the forward collision avoidance of the 2021 Chevrolet Tahoe, 5% of the 462 complaints for this model year. Where a mileage was given, the median is 9,250 miles. 1 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Took delivery of vehicle on friday, january 29th, 2021. While driving home from plymouth, ma to concord, nh, I was using the adaptive cruise control. I was traveling between 65mph and 70mph. Roads were completely dry, there were no other cars near me, and there were no obstacles in front of me. I was traveling in the middle lane of a three lane highway. Out of nowhere, the brakes were forcefully applied by the computer which nearly brought the vehicle to a stop in the middle of the interstate. …”
NHTSA complaint #11397468, filed 2021-02, 980 miles“We had a failed lifter that caused bent rods which caused scratches on the crank shaft which caused us to have to replace the engine. After a simple internet search I have found the lifter failure is very common with gms 5.3 v8. We were told oil needs to be changed at least every 5000 miles although the vehicle prompts you around 7000.”
NHTSA complaint #11657047, filed 2025-04“While driving on I-90 in Montana on a clear, sunny day at the posted speed limit of 80 miles per hour for one hour, the vehicle began making knocking noises then, all of a sudden lost power. Upon inspection at the nearest GM dealership service department in Butte, MT, I was told something within the engine broke. …”
NHTSA complaint #11710051, filed 2026-01“1st. While driving at highway speeds my vehicle disengaged from adaptive cruise control when no cars were in view of sensors. However, cars were behind me, making it a little scary. Happened once but I haven't had my vehicle to know if it would happen again. 2nd. Car has a vibration at speeds of 30 to 40 mph. Vehicle has literally been at dealership since February 10th, 2025 with no eta for valve body in sight.”
NHTSA complaint #11658264, filed 2025-05“I drive a 2021 Chevrolet Tahoe. This occurrence has happened on three separate occasions and each time it was raining outside. The first occurrence, my vehicle was running and parked in the rain after driving approximately 5 miles. While parked my check engine light came on with a series of warnings: service ECS, service traction control, forward collision system unavailable, reduced acceleration drive with care. Two days later it went away. The second occurrence, I was driving in the rain for approximately 22 miles and briefly parked with my vehicle running. …”
NHTSA complaint #11684360, filed 2025-09Related service bulletins
- 11023051May 8, 2025This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer…
Forward collision avoidance: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 11% |
| 2025 | 10 | 19% |
| 2024 | 6 | 9% |
| 2023 | 12 | 5% |
| 2022 | 8 | 4% |
| 2021 | 21 | 5% |
| 2019 | 1 | 1% |
| 2018 | 4 | 4% |
| 2017 | 5 | 3% |
| 2016 | 7 | 3% |
| 2015 | 6 | 1% |
| 2014 | 1 | 1% |
| 2010 | 1 | 0% |
| 2009 | 1 | 0% |
| 2002 | 1 | 0% |
Other parts of the 2021 Chevrolet Tahoe
169 complaintsFuel system
121 complaintsTransmission and drivetrain
90 complaintsElectrical system
58 complaintsOther or unknown
41 complaintsAir bags
27 complaintsBrakes
22 complaintsEngine cooling
17 complaintsExterior lighting
16 complaintsSteering
15 complaintsSeat belts
13 complaintsVehicle speed control
10 complaints
← All problems reported for the 2021 Chevrolet Tahoe
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology