Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Acura TLX owners, lightly cleaned up (personal details are redacted by NHTSA).
While driving approx 65 mph on a freeway the vehicle placed itself into neutral and decelerrated as multiple warnings flashed across dashboard. . . "Emissions System Problem", "Transmission System Problem", "Electric Parking Brake Problem". I was able to pull off to the side of an exit ramp but once I put the car in PARK I could not shift into Drive. I could not safely drive/manuever my vehicle to a safer area putting myself and child at risk of being hit. I turned the car on/off multiple times to attempt to shift into Drive, but to no avail. I called the nearest Acura dealer which was in the next town over from where I was stranded. After many failed attempts I was able to put the car in Drive and move my vehicle to the closest road and off to the side but with the warnings still flashing. …
While driving on the freeway/highway my vehicle went into limp mode and shifted into neutral. My vehicle would not allow me to shift gears and the car would not let me accelerate anymore. I had to think quickly and move out from upcoming traffic. With little speed I had on my vehicle I could only shut down the car and wait for a tow truck. This happened to me twice in 2020 and the mechanics could not find any issue or replicate what had happened. They said this was a software issue. I was still scared to drive my car thinking this would happen again. Then 2 years after ( 2024) again this happened and it was when I was on the freeway. Luckily I was on the left side and was able to stop on the shoulder but stressing out and still traumatized from what occurred 2 years ago. I took it to the dealer and same thing they could not replicate the issue and did re programmed the software. …
I was driving on the freeway going at the speed of traffic about 65-70mph then suddenly I heard my car engine slowing down and multiple lights popped up on my dashboard. I looked at my speedometer and it indeed was decreasing in speed. I tried to accelerate little by little and it did not. My check brake system, check brake hold system, check power steering system, check VSA system, check hillstart assist system, check emission system lights popped up on my dashboard. My car felt like I was popping the clutch, jerking a lot. I was able to move over to the right shoulder and park. I turned the car off and I was able to turn it back on unfortunately but the lights were still popping up and my car kept jerking and not accelerating. This happened while driving on the highway this is extremely dangerous! There has been others with the same issue.
I was merging on to the freeway going about 60mph, with traffic right behind me. Car started decelerated and the dash board lit up. A car behind me had to swerve to avoid hitting me. I put on my hazard lights and tried to move to the shoulder the car was only going about 5mph at the time. I turned the car off and restarted to see if it would move, but it was still going about 5mph. After doing this a couple of times I was able to get the car the move at about 20 mph. The dash board is still lit up.
Unknown- Check TPMS System, Check Parking Brake System, Check Brake System, Park light, all came on and stays on. While driving car shut off multiple times, speed will reduce, car will hesitate and jerk when trying to pull off from stop light.
I leased my Acura TLX v6 advanced 2 wheel drive starting in September 2014. Right away, within the first week I started noticing performance issues. This vehicle has an extremely hard shift between 2nd and 3rd gear, causing the car to lurch forward unexpectedly. It is particularly noticeable in "sport" mode. It happens more consistently in stop and go traffic, which coincides with a situation that allows for less reaction time. It also has serious acceleration hesitation throughout all speeds. There have been multiple situations where while merging in traffic or accelerating onto a major highway I have almost been hit because my vehicle was unresponsive. My car has been into Acura twice so far for this issue. The first time I was told it was a "known" issue but there was no fix. …
The car nearly stalls, rolled back 3-4 feet prior to restarting after the idle stop had in- gauged. The transmission shifts from 1-4 like someone who never drove with a clutch, even though it is an automatic. It hesitates and nearly stalls when doing slow maneuvering in and around parking lots and slow traffic. I have nearly had accidents due to the hesitation in traffic. When using cruise control out on the expressway, the car will not maintain its set speed on a downhill grade, it gets jerky and increases speed as much as 10-12 MPH unless I ride the brake. I have had it back to the dealer twice now, the first time they did all the updates on the computer and fuel pump...its just as bad if not worse. The car is not safe and should have a complete recall!!! The next questions ask for a specific time and date...this is ongoing and has been happening since I purchased the car in January.
While driving I noticed that my car didn't seem to shift correctly. I pulled over and accelerated again. Got to my destination and noticed the car wasn't moving harldy as I pulled up to park. Once I parked, I put it in reverse to pull up again and it was making a loud noise and jerking when I put it in reverse. I did this like 3 times to try and figure out what was going on. After about 4 hours I went to leave my destination and it shifted into reverse just fine. I was relieved until after about 5 minutes of driving and then every light illuminated on the dash and the car wasn't accelerating as it should have been. The RPM's were going up but car was barely moving. I made it home but now sick to my stomach because I have no idea what this could be. Not sure if it needs to be towed to a shop or if I can or should drive it if possible.
Yes, you guys are on point! I had my 2015 TLX v4 advanced pack. And every single complaint I read on here I have! This is very nerve wrecking! I took in my Acura two weeks ago to sherman oaks center Acura, where I originally purchased the vahicle and explained everything that I was experiencing; e.I. Jerks, sudden revs, delayed upshift/downshift. The repair center personnel advised me that the vehicle just needed a "simple software update" and that not to be alarmed because Acura will have future updates. So when I went to pick up my car I noticed that the car felt as though I was driving my girlfriend's 10 year old corolla. The car is a f*** piece of s*** I tell you! It lags more and he vibrates too much! This is a safety hazard!
Tl* the contact owns a 2015 Acura TLX. The contact stated that while driving approximately 50 MPH, his foot was removed from the accelerator pedal. The vehicle decelerated to 40 MPH and then rapidly accelerated without warning. The failure recurred while decelerating to 20 MPH. The failure recurred on several occasions. The vehicle was not taken to the dealer or diagnosed. The manufacturer was not made aware of the failure. The approximate failure mileage was 10. Updated 4/20/15 the consumer stated when the vehicle was warm, it accelerated when down shifting and the RPM's would to 200-300. Updated 04/23/15
Acceleration complaints in other TLX years
Frequently asked questions
How common are acceleration problems on the 2015 Acura TLX?
NHTSA has 23 complaints about the speed control & acceleration of the 2015 Acura TLX, 7% of the model year's 344 complaints.
Is there a recall for 2015 Acura TLX acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2015 Acura TLX, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2015 Acura TLX acceleration problems start?
Half of the complaints with a recorded mileage happened before about 2,000 miles, and 69% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.