Acura MDX 2015–2023 — technical service bulletin
Bulletin B23-009 · NHTSA communication 10235126 · issued Apr 20, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2023
model years
13
vehicle entries
Official summary
Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from cranking the engine.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.