Acura MDX 2010 — technical service bulletin
Bulletin Service Bulletin · NHTSA communication 10142654 · issued Jan 18, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010
model years
3
vehicle entries
Official summary
Service bulletin - One or both primary A/F Sensor (Air Fuel Ratio) caps may have fallen off and bored a hole through the affected WU-TWC (Warm Up Three Way Catalyst).
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.