2020 Acura TLX Transmission and drivetrain Problems
- Complaints
- 7about this part
- Share
- 11%of 63 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the transmission and drivetrain of the 2020 Acura TLX, 11% of the 63 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“2 1/2 years before the current connecting rod bearing recall, my engine failed due to the connecting rod bearing at 53,000 miles. After fighting with Acura for almost a year, they agreed to replace the motor. However, when I picked it up, they had only rebuilt the motor. Now that motor's rod has failed at 68,000 miles and they refuse to replace the motor. They say it doesn't have anything to do with the connecting rod bearing but it is knocking with a thrown rod.”
NHTSA complaint #11683861, filed 2025-08“Transmission harsh and delayed gear engagement, sometimes it won’t shift unless it’s done manually, few times it didn’t shift even though I shifted manually, I had to increase engine speed to about 5000 RPM so it shifts, transmission goes into neutral when trying to to accelerate while it’s in drive and intermittent vibration caused by hydraulic circuit pressure issues, I’ve had the vehicle since it had 7900 miles and all these issues been present in the car since then, the car now have 29000 miles and it’s only getting worse. …”
NHTSA complaint #11722849, filed 2026-03“the engine failed and lost all power to the car. It is available for inspection. My safety was put at risk because if i was going on a freeway and freeway speeds i probably would have crash and potentially crash into other people, causing a huge safety issue. The problem has been confirmed by dealer. They said it is very possible the engine rod bearing could have caused this. This is being inspected by Acura. Prior to failed there were no warning lamps or indicators. They all turned on once the car died.”
NHTSA complaint #11627740, filed 2024-11“The contact owns a 2020 Acura TLX. The contact stated that while operating the vehicle, the check engine warning light, the emission system failure, and electronic parking assist messages were displayed. Additionally, the AWD feature had become inoperable, making the vehicle difficult to steer. The contact stated that the failure was intermittent. After disconnecting and reconnecting the negative battery terminal, the system was reset and the failure was corrected, but eventually reoccurred. The cause of the failure was not yet determined. …”
NHTSA complaint #11689856, filed 2025-09Related service bulletins
- 10182001Oct 28, 2020Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 40% |
| 2023 | 2 | 18% |
| 2022 | 10 | 40% |
| 2021 | 28 | 39% |
| 2020 | 7 | 11% |
| 2019 | 11 | 12% |
| 2018 | 11 | 11% |
| 2017 | 18 | 25% |
| 2016 | 15 | 14% |
| 2015 | 161 | 47% |
Other parts of the 2020 Acura TLX
19 complaintsFuel system
17 complaintsElectrical system
10 complaintsEngine cooling
8 complaintsOther or unknown
6 complaintsForward collision avoidance
5 complaintsBrakes
4 complaintsAir bags
3 complaintsLane departure
3 complaintsSuspension
2 complaintsWheels
2 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2020 Acura TLX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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