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).
The contact owns a 2015 Acura TLX. The contact stated while driving approximately 45 MPH, the vehicle failed to maintain the speed while the accelerator pedal was depressed. The contact stated that the vehicle lost automotive power. Several unknown warning lights were illuminated. The contact sustained injuries upon pre-existing injuries from the failure and sought medical attention. The contact was able to pull onto the shoulder of the roadway. The vehicle was towed to a local dealer where it was diagnosed that the cluster had caused the catalytic converter to fail. The vehicle was repaired at the owner's expense. The contact stated that the vehicle failed to respond as needed while the accelerator pedal was depressed. …
The contact's client owns a 2015 Acura TLX. The contact stated while the client was driving 65 MPH, the vehicle shut down in the middle of traffic. There were no warning lights illuminated. The contact stated that the transmission failed to shift into drive or reverse. Additionally, there was an unknown failure with the brakes and transmission. The contact stated that the failure was related to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The vehicle was towed to the local dealer, where it was diagnosed and determined that the instrument cluster had failed and needed to be replaced. Additionally, the catalytic converter needed to be replaced. The contact stated that the driver suffered a stroke after the failure, and medical attention was provided. The manufacturer was contacted and opened a case. The failure mileage was approximately 67,000.
The contact owns a 2015 Acura TLX. The contact stated while driving approximately 50 MPH, several unknown warning lights illuminated and the vehicle lost motive power. The contact stated that the vehicle remained running however, failed to respond to the accelerator pedal being depressed. The contact coasted the vehicle safely to the side of the road. The contact disconnected and then reconnected the battery and the vehicle regained normal functionality. The vehicle was driven to the residence and then to the dealer. The dealer found no failure with the vehicle. The vehicle was not repaired. The manufacturer had not been informed of the failure. The contact stated that the failure recurred several times. The contact researched online and related the failure to NHTSA Campaign Number: 16V640000 (Power Train). The failure mileage was approximately 92,000.
The contact owns a 2015 Acura TLX. The contact stated that while his son was driving at various speeds, the vehicle would shut off without warning. The contact had initially taken the vehicle to an unknown dealer in West Virginia which has since closed, and a software update was performed; however, the failure persisted. As the failure became more frequent, the contact drove the vehicle to another dealer where the mechanic was unable to diagnose the failure. The contact was also informed that the vehicle was not included in NHTSA Campaign Number: 19V060000 (Fuel System, Other) which the contact linked to the failure. The manufacturer was notified of the failure and provided the contact a case number. The vehicle had yet to be repaired and remained in the possession of the dealer. The failure mileage was approximately 28,000.
The contact owns a 2015 Acura TLX. The contact stated that while driving approximately 50 MPH the transmission erroneously shifted to the neutral position causing the vehicle to lose power. After stopping and restarting the engine the failure continued to occur. The contact unplugged the engine battery which temporarily resolved the failure. The vehicle was towed to the local dealer who diagnosed that the transmission software needed to be reprogrammed. The vehicle was repaired. The manufacturer was notified of the failure and the contact was informed that the vehicle was not included in the NHTSA Recall Campaign Number 16V64000(POWER TRAIN). The contact indicated that the vehicle had experienced the same failure listed in the recall. The failure mileage was 70,400.
The contact owns a 2015 Acura TLX. The contact stated while driving at various highway speeds, the transmission randomly shifted into the neutral causing the vehicle to lose automotive power, decelerate, and failed to accelerate while depressing the accelerator pedal. During the failure several messages were displayed including the "Transmission Failure" message. The vehicle was towed to the local dealer who diagnosed that the transmission shifter was faulty, and a transmission computer software update was needed. The vehicle was repaired; however, immediately after retrieving the vehicle, the failure reoccurred. The cause of the failure was not yet determined. The manufacturer was not yet notified of the failure. The failure mileage was 115,000.
The contact owns a 2015 Acura TLX. The contact stated while driving 60 mph, the vehicle decelerated inadvertently. The contact pulled over to the side of the roadway and restarted the vehicle and the vehicle operated as designed. On another occasion, while driving at an undisclosed speed, the vehicle inadvertently shifted from drive to neutral. The vehicle was restarted however, the failure recurred. Several unknown warning lights were illuminated. The contact took the vehicle to a local dealer who inspected the vehicle but was not able to diagnose the cause of the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 73,000.
The contact owns a 2015 Acura TLX. The contact stated that while driving at various speeds, the vehicle momentarily shifted into neutral and failed to immediately accelerate while depressing the accelerator pedal. The vehicle was taken to the local mechanic who was unable to determine the cause of the failure. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the vehicle was not included in the NHTSA Campaign Number: 16V640000 (Power Train). The contact indicated that the vehicle had experienced the failure listed in the recall. The local dealer was not notified. The failure mileage was 56,000.
The contact owns a 2015 Acura TLX. The contact stated that while driving at undisclosed speeds, the vehicle hesitated while accelerating. The message to stop driving and have the vehicle serviced immediately was displayed. The vehicle was towed to the dealer, who diagnosed that the Automatic Transmission Fluid (ATF) warmer had failed. The dealer diagnosed the vehicle with other undisclosed failures due to the ATF warmer failure. The vehicle was not repaired. The manufacturer was informed of the failures and opened a case. The failure mileage was approximately 77,000.
The contact owns a 2015 Acura TLX. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently shifted to park (P) and then stalled. The transmission warning light and several other unknown warning lights were illuminated. The vehicle was taken to the dealer where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000.
Related recalls
Power train › Automatic transmission › Control module (TCM/PCM/tecm)
Honda (American Honda Motor Co.) is recalling certain model year 2015 Acura TLX 2WD and 4WD vehicles. In the affected vehicles, the transmission wire harness connections may have insufficient crimps, and, as a result, the transmission may unexpectedly shift to neutral.
Remedy: Acura has notified owners, and dealers will, based on the automatic transmission serial number, update the transmission software to prevent the transmission from shifting into neutral due to a faulty crimp, free of…
Power train › Automatic transmission
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX V6 2WD vehicles manufactured July 14, 2014, to November 12, 2014, and certain 2015 TLX V6 SH-AWD vehicles manufactured August 26, 2014, to November 10, 2014.
Remedy: Honda will notify owners, and dealers will inspect and replace the transmission if necessary, free of charge. The recall began January 30, 2015. Owners may contact Honda customer service at 1-310-783-2000.
Transmission complaints in other TLX years
Frequently asked questions
How common are transmission problems on the 2015 Acura TLX?
NHTSA has 161 complaints about the transmission & drivetrain of the 2015 Acura TLX, 47% of the model year's 344 complaints.
Is there a recall for 2015 Acura TLX transmission problems?
Yes — NHTSA recall 16V-640 (control module (tcm/pcm/tecm), Sep 6, 2016); NHTSA recall 14V-779 (automatic transmission, Dec 8, 2014). Recall repairs are free at authorized dealers.
At what mileage do 2015 Acura TLX transmission problems start?
Half of the complaints with a recorded mileage happened before about 8,000 miles, and 66% before 25,000 miles.
Is it dangerous?
Owners linked 5 crashes, 0 fires and 1 injury to transmission & drivetrain problems on this model year. If you notice symptoms, have the car checked before driving further.
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.