2021 Acura TLX Engine Problems
- Complaints
- 5about this part
- Share
- 7%of 72 total for the year
- Median mileage
- 93,039miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine of the 2021 Acura TLX, 7% of the 72 complaints for this model year. Where a mileage was given, the median is 93,039 miles.
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.
“I drive a 2021 Acura TLX TYPE S around 85K miles. I heard a loud clank when I was driving one day, and I loss traction. When I was accelerating I was losing traction and it seem like I lost power while I was moving as well. It seems like I'm driving front wheel drive. I let me foot of the gas and it seems like it's back to normal SH-AWD. I hope this gets looked into and fixed soon.”
NHTSA complaint #11763748, filed 2026-09“My vehicle was stolen due to a jammer that copied my car keys information. I have it on video. It was addressed to acura and honda about the vulnerability for past 3 years and they ignored it. I now am a victim of a stolen vehicle because of this vulnerability that was not acknowledged”
NHTSA complaint #11578434, filed 2024-03“I was driving down the freeway, in a new 2021 Acura TLX with 2000 miles on it. It was raining when I went to switch lanes and floor it to pass another car and the check engine light came on and the power dies and speed dramatically slows down and I’m unable to accelerate. The check engine light is flashing and the car will not reach 40mph. Again I’m on the freeway. This was a very dangerous situation. There were no warnings leading up to this catastrophic fuel/engine issue. …”
NHTSA complaint #11450633, filed 2022-02“On 07/01/2026, at approximately 8:00 AM, during steady acceleration, flashing of MIL with loss of power presented northbound after merging from 235 west bound to I-135 north bound near Park City, KS. Particularly dangerous resulting in near rear end collision. Upon taking nearest exit ramp, attached BlueDriver .OBD II reader, and fault code P0303 - Cylinder 3 Misfire and U0401-68 PGM-Fi/ECM/PCM system event code was logged, with multiple warning indicators that safety system, AWD, brake, and other systems were disabled. …”
NHTSA complaint #11747673, filed 2026-07Related service bulletins
- 11023273Sep 17, 2025Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 20% |
| 2022 | 2 | 8% |
| 2021 | 5 | 7% |
| 2020 | 19 | 30% |
| 2019 | 32 | 34% |
| 2018 | 31 | 32% |
| 2017 | 24 | 34% |
| 2016 | 27 | 24% |
| 2015 | 83 | 24% |
Other parts of the 2021 Acura TLX
28 complaintsBrakes
11 complaintsElectrical system
10 complaintsOther or unknown
10 complaintsAir bags
8 complaintsForward collision avoidance
8 complaintsFuel system
6 complaintsSuspension
6 complaintsLane departure
3 complaintsSteering
3 complaintsBack-over prevention (rear camera)
1 complaintsEquipment
1 complaints
← All problems reported for the 2021 Acura TLX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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