2015 Acura TLX: false forward collision warnings

Filed Aug 18, 2021 · Transmission · MA

While driving at 60 mph in left lane of highway, without warning, the vehicle slowed and lost all acceleration and slowed, and then a series of warnings lit up on the screen including: electronic parking brake error, a transmission warning pertaining to the ZF 9 speed transmission that demanded driver to pull over to the side to avoid major damage, and emissions failure warning. Then numerous other warnings displayed indicating collision warning system issues, and warnings that other driver safety systems had disengaged or failed. The transmission automatically switched to neutral (which I could only figure out 10 seconds later) as the accelerator would rev the engine but provide no motive force, making changing lanes across 3 lanes of traffic on a busy highway very dangerous as my car decelerated relatively quickly to fast moving highway traffic. After I pulled over and stopped the car, I tried turning off the car and restarting the car, and the transmission error and emissions system error was immediately displayed and prevented the vehicle from being put into drive. I tried to get a hold of the Acura towing service but was stuck on hold for 20 minutes and hung up. I started the car once again, and no errors were shown. I was able to drive 1/2 a mile and the transmission once again disengaged into neutral and emissions system warning came up again and I pulled over once again. I once again waited 20 minutes and restarted the car and drove 3 miles to a shopping center parking lot and let the car sit for 1.5 hours. When I returned, I started the car and everything seemed fine, and I was able to drive 35 miles home with the emissions system warning and transmission system warning displaying but the car remained in gear. I took the car to the dealer the next day (with the car still covered under extended warranty), and Acura performed a software update (PGM-FI and TCM and PCM Idle Learn updates), for which they initially said I was responsible to pay for.

Filed Jun 16, 2021 · Transmission · CA

I bought the car July of last year (2020) and noticed the car was a bit jerky when I accelerated from a complete stop. But as I started to drive the car more I noticed it was jerky shifting from 2nd to 3rd gears. Its a violent jerk. Everyone in the car whiplashes when it happens. When I go downhill and press on the brakes to slow down it gets a sudden burst of speed and doesn't slow down but goes faster even when pushing on the brake. On the dashboard I have multiple lights that won't turn off. The lane keeping assistance, lane departure warning, forward collision warning as well. I havent gone to the dealership or have had checked out by Acura or anyone just yet. But I know other people have the same exact problems and its a real danger to drive and these things happen on a daily basis. Im sure its something with the transmission and something needs to happen because I love this car and worried about safety of me and others out on the road

Filed Sep 5, 2019 · Driver assistance, Electrical · 38,500 miles · CA

The vsa problem light & forward collision warning problem light came up while driving and the vehicle stopped & stalls all in a sudden. Not sure if this is a safety issue, but almost got into a car accident. Please help! Thank you

Filed Jan 3, 2018 · Electrical, Transmission · 42,750 miles · GA

Battery acid from the manufacturer's original battery leaked, and damaged the transmission wiring harness, which sits underneath the battery. Until detected, this caused sporadic warnings and multiple malfunctions while driving that would appear, but then go away. Some months later, the car started but the computer would not shift from park. The instrument cluster listed numerous, unrelated system issues: "adaptive cruise control problem" ; "stop driving when safe. Transmission problem. See manual." ; "electric parking brake problem" ; "emissions system problem" ; "transmission system problem" ; "transmission problem apply parking brake when parked" ; "vehicle stability assist (vsa) problem" ; "precision all wheel steer problem" ; "collision mitigation system problem" ; "road departure mitigation system problem" ; "blind spot info system problem." this vehicle has a shift-by-wire drive selector, and there is no mechanical way for a consumer to disengage the transmission from the drivetrain. The vehicle was stuck in park and needed special equipment to be safely moved onto a tow-truck, which took the manufacturer's roadside service two days to address. The wiring harness was replaced under warranty, but took several days for a repair. The 2015 acura tlx seems to be known for reacting in this way for any type of electrical or voltage variability from any number of its electronic systems, including while driving.

Filed Mar 20, 2017 · Acceleration, Steering · 23,000 miles · CA

New car purchased in 2015. Currently has about 23k miles. Error lights flash on dash including "transmission system problems, blind spot info system problems, vehicle stability assist problem, all wheel steering problem, forward collision warning problem, lane departure waring problem". This is the third time that it has happened. First time, no video evidence of it but we did take it in to acura to look. No issue found. Second time we had a video, they did a software upgrade. Now again. Along with this, car had a transmission replaced, steering rack and pinion, sub frame, power steering assembly, list goes on.

Filed Oct 29, 2015 · Brakes, Seat belts · 3,000 miles · NY

Tl* the contact owns a 2015 acura tlx. The contact stated that while driving, the collision mitigation braking system (cmbs) failed. The contact stated that seat belt pretension which was a feature of the collision mitigation braking system failed to engage. The vehicle was taken to the dealer for diagnostic testing. The contact was informed by the dealer that the system was functioning as designed. The contact also stated that the forward collision warning system with pedestrian detection functioned as designed. The manufacturer was notified of the failure. The approximate failure mileage was 3,000. Updated 2/4/16 *cn