My car shakes and rocks like a boat over every bump and when i make turns the car dips really bad and bounces around. It's been doing this since i got the car and purchase a warranty i could not use from sports Mazda. Its unsafe at high speeds and jerks when switching lanes. I continuously do the alignment every 2-4 weeks. And the toe gets adjusted and it goes right back to the issue. Acura told me this is how their cars drive and it feels unsafe to drive
Engine & cooling
2021 Acura TLX Engine problems
Owners have filed 6 complaints about the 2021 Acura TLX's engine & cooling with NHTSA - 8% of all its complaints, most recently on October 30, 2026. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 6
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
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.
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...
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disabled. Note, vehicle has had TSB 20-053 update w/ flash of PGM-Fi which did not resolve the fault, fault associated with hot and humid climates or period of rain fall, apparent water vapor, condensate build up in intercooler. For Honda Accord and Acura RDX w/ 4 cylinder 2.0 TDGI engine TSB includes redesigned intercooler replacement, that is not available for TLX 21-25 which is currently out of production. This has occurred previously during humid and hot weather, but no intermittent flashing MIL does not store code. Thankful in this instance P0303 and U0401-68 code is stored, and scheduling service at dealership to diagnose misfire.
I drive a 2021 Acura TLX 2.0 L turbo 4 cylinder. I was driving to work on [[redacted]] on a busy street in Boyle Heights, Ca. When all of sudden I get a warning indicator "engine temp is high do not drive". Pulled over immediately. Good thing I was in the far right lane and was able to pull over and not stall or get rear ended by another vehicle behind me. There were no warning, symptoms and indicators of the engine's overheating. My vehicle has been in great condition prior with no major or minor issues with my...
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vehicle. We took it to two dealerships for diagnostics. The head gasket blown, empty coolant reservoir, cracked engine block, and other parts of the engine were affected. What if I was on a highway and the car stalled. I could've been seriously injured or seriously injured someone else on the road. Acura corporate is aware of our situation and refuse to own their engine safety defects. They want us to pay out of pocket to repair our vehicle. My car is 5 years old there is no way out of nowhere my vehicle should have this type of engine issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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
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. I took the car to the Acura dealer...
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who said there had been reports of issues related to water getting into the car's intercooler for the turbo causing the car to misfire and then going into "safe mode" with a flashing check engine light. They installed Acura SB 20-053 PGM-FI update. I'm picking the car up on 2/6/22 and hoping the issue is resolved. Again this was a serious fuel engine issue that if I'd been passing a car on a two lane road into oncoming traffic could have been deadly
Acura TLX engine complaints by year
TLX engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data