Acura RDX 2013–2015 — technical service bulletin
Bulletin Service Bulletin · NHTSA communication 10115208 · issued Dec 19, 2014
Technical service bulletin
communication type
Fuel System, Gasoline
component
2013–2015
model years
3
vehicle entries
Official summary
Service bulletin - The TIGHTEN FUEL CAP message is on or DTC P0455 (EVAP system large leak) and/or DTC P0456 (EVAP system very small leak detected) set. During short drive cycles, the PCM may misinterpret inputs from the evaporative system.
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.