2019 Acura MDX engine problems

46 owner complaints filed with NHTSA name the engine on the 2019 Acura MDX — 25% of all complaints for this model year.

Engine complaints

25%

share of all complaints

—

median reported incident mileage

0 / 1

crash / fire reports

What owners report

“I am reporting a recurring safety issue following the Acura rod bearing recall repair on my 2019 Acura MDX SH-AWD. The original recall resulted in catastrophic engine failure and Acura replaced the long block assembly. Since that repair, the vehicle has repeatedly failed and returned to the…”
filed May 6, 2026
“My car has stalled while driving on the highway multiple times now. The first time it happened, it lost power, stopped accelerating, and cycled through multiple warning lights, causing a significant safety risk. I pulled over and it restarted within minutes. I took it to a repair shop and they…”
filed Apr 2, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the…
B23-002 · Service Bulletin/Repair Instructions · issued Jul 7, 2025
Service Bulletin - The AWD warning light is on with one or more AWD DTCs having been set due to water intrusion into the electric oil pump motor connector area corrodes the terminals.
B24-022 · Service Bulletin/Repair Instructions · issued Feb 19, 2025