2020 Acura TLX electrical problems

Filed Sep 30, 2026 · Electrical · IL

My Acura TLX was stolen on from my driveway in Chicago, IL. The vehicle was locked, and the only key fob was about 200 feet away inside home at the time. The thief was able to unlock, start, and drive away the vehicle without the authorized key fob. Component that failed: The vehicle's anti-theft and keyless entry/ignition security system smart key/immobilizer failed to prevent unauthorized entry and engine start. The vehicle and component are not available for inspection yet but the vehicle was recovered and located. Safety risk: The security flaw allowed an unauthorized person to take control of and operate a vehicle on public roads. This puts the public at risk from reckless driving by the thief and from the car's possible use in other crimes. It also shows that any owner's vehicle can be taken with no key present, which puts owners at risk of confrontation and financial harm.

Filed May 1, 2026 · Brakes, Electrical · TX

The cars Emission Systems and Parking Brake lights come on, and the dealer can not diagnose this issue properly. I have taken it in 4 times, and it continues to happen. I fear the parking brake coming on while driving.

Filed Nov 19, 2025 · Electrical, Engine · NC

49,622 mark on my 2020 Acura tlx AWD… auto stop was enabled, car was at stoplight, engine attempted to re-engage but did not and car went into “neutral”… and the lights stayed on. I immediately turned on blinkers to avoid crash and and attempted to re start car, I shifted into Park, shut down car and re-started it successfully. I am seeking repair or disablement of the auto stop system, this is a safety hazard to myself and my family as well as others who had to go around while the issue was being troubleshooted. This appears to be related to Investigation:EA25004

Filed Sep 26, 2025 · Electrical, Engine · MA

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. The local dealer and manufacturer were notified of the failures, but no assistance was offered. The failure mileage was unknown.

Filed Sep 8, 2025 · Electrical, Wheels · 90,000 miles · UT

The contact owns a 2020 Acura TLX. The contact received notification of the federal safety agency Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING) and an unknown recall for the tires, and another for the trim around the doors. The contact stated that the recall repairs were completed. The contact’s son picked up the vehicle from the dealer and noticed that the front windshield was cracked. Additionally, while driving 65 MPH, the vehicle vibrated abnormally, and the driver was unable to control the vehicle. The contact stated that the front passenger’s side tire detached from the vehicle. The driver was able to regain control of the vehicle and pulled over to the side of the road. Several messages were displayed on the instrument panel including messages that the cruise control was inoperable, assist line Collison system inoperable, road mitigation system unavailable, Collison Mitigation system failure were displayed. When the tow truck arrived at the scene, the tow truck driver noticed that bolts connected to the spindle had detached. The vehicle was towed to a tire specialist and the tires were replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

Filed Sep 4, 2025 · Electrical, Fuel system · NY

Electric parking brake problem , and emissions system problem. Apparently its a common issue many are affected.

Filed Dec 26, 2024 · Driver assistance, Electrical · CA

The vehicle's dash states the following are malfunctioning: Road Departure Mitigation System, Adaptive Cruise Control, Auto High Beam, Collision Mitigation System, and Lane Keeping Assist. The vehicle is available for inspection upon request. A few days prior to this message appearing on the dash, the car flashed and beeped that I needed to BRAKE when there wasn't anything in front of me while driving. The car automatically braked without me doing anything. There weren't any vehicles behind me in that specific moment. With how sudden the car braked, this could have caused a collision. This vehicle has been repaired by the dealership where it was purchased, for this exact issue. The first sign of sensors malfunctioning was in January 2022 (I purchased the vehicle in June 2021). I have taken the vehicle to the dealership for repairs 3 times in relation to sensor malfunction and for replacement of rear actuators, which is stated in the Service Repair Summaries. Since the last repair in 2023, the same problem has occurred once again. This latest incident has included the automatic braking without any objects in front of the vehicle. I have not driven the vehicle in two days due to this safety concern.

Filed Oct 20, 2024 · Electrical · TX

Acura Tlx suddenly starts flickering, its a common honda manufacturing defect ive attached a video for reference [XXX] It’s dangerous because it can leave someone stranded unsafe INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 7, 2023 · Electrical · IL

The idle stop feature on the vehicle will engage at a red light stop. Then, will fail to start the engine when the light turns green. You have to engage the car in park and then hit the engine start button. This is a safety hazard in traffic. It could result in an accident.

Filed Jun 8, 2021 · Electrical, Engine · CA

Two times in three weeks with the auto idle stop active the car failed to restart on a green light. Following all the prompts in the car it takes over a minute to re start the car while blocking traffic.