2018 Chevrolet Tahoe engine problems
20 owner complaints filed with NHTSA name the engine on the 2018 Chevrolet Tahoe — 19% of all complaints for this model year.
What owners report
“05/15/23 - AFM Lifter failure - Complete Top End Rebuild under extended warranty purchased when i bought the Tahoe - Preowned certified. Cost $2,000.00 Out Of Pocket ( Days Chevrolet Repaired 86,350 miles) 09/06/23 - Transmission failed - Warranty paid except $2,000.00 (94,000 Miles) 02/02/26 -…”
filed Aug 28, 2026
“Out of nowhere without any warning light all of a sudden couldn’t back up when geared into reverse to reverse. Turned the vehicle off and back on, then was able to reverse. Left parking lot and was on the road and vehicle started loosing speed, then put into park with hazard lights. When attempting…”
filed Jul 27, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Tahoe years
| Year | Reports | Share |
|---|---|---|
| 2026 Tahoe | 16 | 67% |
| 2025 Tahoe | 28 | 58% |
| 2024 Tahoe | 22 | 33% |
| 2023 Tahoe | 119 | 55% |
| 2022 Tahoe | 71 | 38% |
| 2021 Tahoe | 166 | 37% |
| 2020 Tahoe | 12 | 22% |
| 2019 Tahoe | 29 | 28% |
| 2017 Tahoe | 26 | 15% |
| 2016 Tahoe | 19 | 7% |
| 2015 Tahoe | 46 | 7% |
| 2014 Tahoe | 2 | 2% |
Other reported problem areas on the 2018 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.