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 - Broken Driver Side Motor Mount Replaced $350.00 (159,000 Miles) 02/28/26 - Rear end Failure 03/20/26 - AFM Lifter Failure Again - Been in the shop since then. No warranty/ Pay out of Pocket (160,010 Miles)
2018 Chevrolet Tahoe: complete transmission failure
5 of the 106 complaints about the 2018 Chevrolet Tahoe describe complete transmission failure.
- owner complaints
- 5
- of this car's complaints
- 5%
- recalls
- 0
Is there a fix? 106 service bulletins cover this area of the car. See below
Complete transmission failure by model year
What owners say
Transmission failure at 127,000 miles. Multiple flairs in transmission resulting in total rebuild
Transmission failed at 94,000 miles Misfire 80,000miles AFM/DOD issues $10,000 in repair bills still not fixed
Transmission failure at 110,000 miles. No warning lights, no codes. The transmission was slipping during acceleration, random rpm bouncing at a steady speed, acting lost in gears, slow power up hills then takes off. Currently sitting at a chevy dealership.
Transmission issues on 2018 Chevy Tahoe. The vehicle stopped on the Hwy. Dealership says the transmission needs to be replaced. Is uncertain why the transmission has gone out on the vehicle since it’s only 4 years old. Error message came on my vehicle and I called the dealership. From my research it appears Chevrolet is continuing to have problems with the transmission on its Tahoes. This is unexceptionable. The consumer has to pay the price not the manufacturer. Please assist.
Service bulletins that may apply
- Power train
- This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
- This service bulletin provides information on some vehicles that may rock or move slightly forward or...
- This technical bulletin provides a procedure for the techs to replace the forward check ball and separator...
- GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities
- This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is...
- This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a...
Related recalls
No recalls on record for this model year.
Questions about the 2018 Chevrolet Tahoe transmission failure
Is complete transmission failure a common problem on the 2018 Chevrolet Tahoe?
5 of 106 owner complaints about the 2018 Chevrolet Tahoe (5%) mention complete transmission failure. The model year with the most reports is 2017.
Is there a recall or service bulletin for this on the 2018 Chevrolet Tahoe?
There are 0 recalls and 106 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2018 Chevrolet Tahoe
VIN decoder
See the problems and recalls for an exact car
Buying a used 2018 Chevrolet Tahoe?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history