2021 Acura TLX power train problems
23 owner complaints filed with NHTSA name the power train on the 2021 Acura TLX — 36% of all complaints for this model year.
What owners report
“I'm losing power than normal all of a sudden. When I step on the gas after light hits green in sport and sport plus mode my car losses traction even when traction control is on, and I hear a loud clunck sound. After the the loud clunck sound the car losses RPM while driving I step off the gas and…”
filed Aug 4, 2026
“I took this vehicle to get serviced in the summer of 2025. I recently joined an Acura Type S (2021+) group on Facebook and learned that the issue is quite prevalent. I had to have the transmission and transfer case replaced due to transmission issues and traction issues”
filed Jul 13, 2026
“On July 7th 2026 I was driving home, came to a stop light at normal speed, when the light turned green I took off at normal speed and I heard a huge cluck / bang from underneath the car and it bogged and didn’t want to move. I then stepped on the gas because of the Car behind me getting to close and my traction…”
filed Jul 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other TLX years
| Year | Reports | Share |
|---|---|---|
| 2022 TLX | 9 | 38% |
| 2020 TLX | 7 | 11% |
| 2019 TLX | 11 | 12% |
| 2018 TLX | 11 | 12% |
| 2017 TLX | 18 | 26% |
| 2016 TLX | 15 | 14% |
| 2015 TLX | 160 | 47% |
Other reported problem areas on the 2021 Acura TLX
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.