On several occasions when auto start/stop is engaged the vehicle will shift into neutral on its own upon restart. The engine will just rev and not go back into drive until you put it in park and then drive again. This has caused us to stall in front of a semi and 2 other vehicles. The dealer has replicated the issue on multiple occasions and is now there for a 3rd time. First 'fix' was charge the battery Second 'fix' was adjust exhaust and transmission valves Third 'fix' is replacing the fuel pump There was a 2019 recall for Acura MDX but this VIN does not show up for that.
2019 Acura MDX fuel system complaints
Page 3 of 3: complaints 41 to 43 of 43, newest first, as owners wrote them.
I think this recall needs to be expanded: Honda and Acura have recalled 2019 and 2020 vehicles including the CR-V and Accord for fuel pumps which can malfunction and cause the engine to lose power. My wife recently had her 2019 MDX stall on her in an intersection and she had to turn off the car and turn it back on so it would work. It sounds exactly like the below: “While driving, the vehicle shifts into Neutral, the transmission indicator comes and DTC P0657 (actuator supply voltage circuit/open) is stored. The driver will not be able to select any other gear until the vehicle is turned off and restarted. Update the PGM-FI [programmed fuel injection] software and the TCM software, clear any DTCs [diagnostic trouble codes], and do the PCM [powertrain control module] idle learn procedure.” - TSB 15-034 Additionally, May 23, 2021 we had an experience where the same MDX decelerated as we merged into traffic at I-30 and I-820 in Ft. Worth. I let off the accelerator going 60-70 MPH and then stepped on the accelerator to complete my merge and there was no power. Speed dropped to around 20 almost instantly. I had to completely let off the accelerator and depress it again to get going. Very scary situation considering how fast people drive on Texas freeways. These are two big issues Honda/Acura needs to address ASAP as both put consumers at risk of injury and possibly death.
The car caught fire spontaneously in the parking area. We called 911 and the fire brigade took about an hour to get the fire under control. We had gone to chickfila (about 6 miles total distance) and the car had been parked for maybe 5 minutes when we saw a fire engulf the front portion. I put water on it while waiting for 991 response.
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