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Service bulletin PIC-5646

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 id10043663
Published by NHTSA2012-04-18
Manufacturer's numberPIC-5646
Manufacturer's date2012-03-01
NHTSA componentELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

CHEVROLET: THE EMISSIONS 2 (EMIS2) FUSE IS OPEN AND THE SERVICE ENGINE SOON LIGHT COMES ON DUE TO POSSIBLE DAMAGE TO CONDUIT. *PE

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, Engine, Wiring and fuses

Vehicles listed
CHEVROLET IMPALA2012

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
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100089005G2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
100089005H2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
10-00-89-005C2018-06-04. Service bulletin. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
10-00-89-005E2018-05-21. Service bulletin. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
13-00-89-008A2018-05-07. Service bulletin. This informational bulletin communicates GM wiring repair strategy information.
PIC5606A2018-05-07. Service bulletin. This Preliminary Information communication provides information to the technicians about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P069E, P0641, and B101D. Technician will need to inspect for wiring harness under the back seat twisted and pinched causing open circuits, shorts to ground, and shorts to other circuits in the harness.
PI0631G2018-04-23. Service bulletin. This preliminary information bulletin provides a procedure to inspect the engine wire harness and install a patch on the transmission due to the wiring harness rubbing causing the (MIL) on, various DTCs to set, IPC inoperative display and/or BCM fuse blown.
13-08-116-0012018-04-16. Service bulletin. This technical bulletin provides a procedure on suspected tampering due to aftermarket ALDL or DLC interface devices causing multiple issues.
13-00-89-0082018-04-02. Service bulletin. This informational bulletin provides information for GM wiring repair.