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Service bulletin Service Bulletin

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10118837
Published by NHTSA2017-10-15
Manufacturer's numberService Bulletin
Manufacturer's date2014-10-03
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

Service bulletin - The MIL comes on and DTC P0455 (EVAP system large leak) and/or DTC P0456 (EVAP system very small leak detected) is set. The fuel fill cap (gas cap) may also be loose or have a stick-slip feeling when tightened. The fuel fill cap gasket creates too much friction, preventing the cap from sealing properly.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P0455, P0456

Vehicles listed
ACURA ILX2013
ACURA MDX2012, 2013
ACURA RDX2012, 2013
ACURA TL2012, 2013
ACURA TSX2011, 2012, 2013
ACURA ZDX2012, 2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V8580002023-12-18. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
12V0630002012-02-17. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
20120602012-02-16. Fuel System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
Service Bulletin2017-08-15. Service bulletin. 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.
DLR MSG - Acura2017-07-31. Service bulletin. Dealer message - Today, April 2, 2015, American Honda is announcing a warranty extension for some 2009-2011 TSX vehicles for continued high oil consumption after having service bulletin 11-021, Product Update: Software Update to Improve Fuel Injector and VTC Timing performed. To increase client confidence, American Honda is extending the warranty coverage for repairs to 8 years from the original date of purchase or 125,000 miles, whichever comes first.