NHTSA Complaint #11429591 — 2015 ACURA TLX

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.