2021 Chevrolet Tahoe power train problems
86 owner complaints filed with NHTSA name the power train on the 2021 Chevrolet Tahoe — 19% of all complaints for this model year.
What owners report
“My vehicle had a pop and loss of power on the highway. After pulling over, I did not have a check engine light but did connect my code reader and found a P308. I felt unsafe to drive so I had it towed to a shop. I later found out the DOD system or lifter on valve #8 has failed and needs…”
filed Aug 28, 2026
“Our Tahoe keeps burning through oil. about 2/3 of the way through an oil changes i have to add 2 more quarts to get to the next oil change. Our tahoe was not part of the initial recall i am not sure why.”
filed Aug 25, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Transmission control valve may fail and cause the rear wheels to lock-upCampaign 24V797000 · Oct 24, 2024
- Rear wheel driveshaft assemblies may have internal components that were not heat-treated…Campaign 22V036000 · Jan 27, 2022
Power Train problems in other Tahoe years
| Year | Reports | Share |
|---|---|---|
| 2026 Tahoe | 2 | 8% |
| 2025 Tahoe | 5 | 10% |
| 2024 Tahoe | 7 | 11% |
| 2023 Tahoe | 42 | 19% |
| 2022 Tahoe | 37 | 20% |
| 2020 Tahoe | 14 | 25% |
| 2019 Tahoe | 38 | 36% |
| 2018 Tahoe | 20 | 19% |
| 2017 Tahoe | 53 | 31% |
| 2016 Tahoe | 47 | 18% |
| 2015 Tahoe | 55 | 8% |
| 2014 Tahoe | 5 | 6% |
Other reported problem areas on the 2021 Chevrolet Tahoe
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.