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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 id10129554
Published by NHTSA2018-03-05
Manufacturer's numberService Bulletin
Manufacturer's date2014-02-18
NHTSA componentENGINE AND ENGINE COOLING

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

Engine

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.

Other bulletins for the same vehicles and component
ONLB97022520212021-03-02. Service bulletin. Owner Notification Letter - This warranty only covers vehicles that have a defective motor power inverter, also known as intelligent inverter unit. The motor power inverter may fail over time due to a defective solder joint. This failure will result in the charging system, PGM-FI system, and IMA system warning lights coming on. The decreased power supply to the 12-volt battery can lead to a series of system malfunctions.
B20-0212020-12-23. Service bulletin. "Service Bulletin - The motor power inverter (MPI), also known as the intelligent inverter unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the following DTC(s): -P1440 (MPI Module Output Circuit Malfunction) -P1437 (MPI Module Short Circuit) -P15A5 (Motor Current Sensor Circuit Malfunction) -P0A78 (MPI Module Internal Circuit Malfunction) -P0AE1 (Bypass Contractor Malfunction) -P0A3C (Motor Control Module (MCM) Overheating) -P0A3F (Motor Rotor Position Sensor Circuit Malfunction) -P0DA8 (MPI Module Voltage Malfunction) -P1634 (MPI Module Signal Circuit Malfunction) -P0AEE (MPI Internal Circuit Malfunction) -P0A27 (High Voltage Contactor Stays Activated) American Honda is extending the warranty coverage of the motor power inverter (MPI) on these vehicles to 15 years from the original date of purchase or 150,000 miles, whichever comes first."
DOR-M9J4S-072020-07-27. Service bulletin. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
DOR-M3J3F-072020-07-27. Service bulletin. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
BPP051220202020-05-19. Service bulletin. Dealer Message - The May episode of Tech2Tech is now posted. We've got some valuable information for you, so check it out! This month we're featuring "Replacing That Leaky Front Rocker Arm Oil Control Valve."
BMV2005022020-05-19. Service bulletin. Video Message - It concerns how to replace a leaky front rocker arm oil control valve. Due to a deteriorated lower gasket or an out-of-spec gasket groove, the front rocker arm oil control valve can leak in certain V6 models with variable cylinder management. To fix this issue service bulletin B20-014 was posted. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
B20-0142020-03-12. Service bulletin. Service Bulletin - The front rocker arm oil control valve is leaking.
B19-0522019-10-09. Service bulletin. Service Bulletin - Due to high demand for repairs under this warranty extension, pistons and rings required to complete this repair are currently backordered. Acura has provided this service bulletin (19-052) as a mechanism to cover clients that were not able to have repairs completed during the initial 6-month eligibility period on service bulletin (19-006).
BBOM083120192019-09-06. Service bulletin. Dealer Message - On January 16, 2019, Acura announced a warranty extension for certain 2009-14 Acura vehicles equipped with a 3.7L V6 engine to address client concerns related to excessive oil consumption. Acura extended the powertrain warranty coverage to address engine issues related to excessive oil consumption from the original 6 years/70,000 miles to 8 years/125,000 miles, whichever comes first. In addition, all vehicles were provided a grace period until August 31, 2019 and were covered regardless of time in service or mileage.
B19-0062019-08-14. Service bulletin. Service Bulletin - The oil control rings may become clogged with carbon deposits. These deposits restrict the ring's ability to scrape and return oil from the cylinder wall to the crankcase, which can result in excessive engine oil consumption that may exceed client expectations.