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Service bulletin B15-012

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 id10108482
Published by NHTSA2017-07-10
Manufacturer's numberB15-012
Manufacturer's date2015-05-06
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID

NHTSA's summary

SERVICE BULLETIN - THE ELECTRIC DIFFERENTIAL PRESSURE SOLENOID (EDPS) HAS EXCESSIVE OIL PRESSURE, CAUSING THE AWD INDICATOR TO COME ON AND DTC C-1858-73 (DIFFERENTIAL FLUID PRESSURE DEVIATION HIGH) TO SET.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Equipment and accessories, Starter

Vehicles listed
ACURA RDX2013, 2014

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