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Service bulletin 3981

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 id10019827
Published by NHTSA2006-05-03
Manufacturer's number3981
NHTSA componentELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

NHTSA's summary

REPEATED PARK LPS FUSE OPEN. *TT

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, Wiring and fuses

Vehicles listed
CHEVROLET HHR2006

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
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.
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.
PIP-3869-B2016-08-26. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN TO ASSISTANCE DIAGNOSING AND REPAIRING VEHICLES THAT MAY HAVE AN INTERMITTENT CONCERN WITH ANY OF THE TRANSMISSION ELECTRICAL OR COMMUNICATION DIAGNOSTIC TROUBLE CODES. TECHNICIAN WILL INSPECT THE TRANSMISSION WIRING HARNESS THAT IS UNDER THE BEAUTY COVER FOR THE ENGINE. IT MAY BE PINCHED AT THE ENGINE BLOCK NEAR THE OIL FILTER OR HAVE A BARE SPOT. IF NO PROBLEM IS FOUND, THEN CHECK THE 20 WAY CONNECTOR FOR PROPER CONNECTION AND PIN FIT AND FULLY RESEAT THE 20 WAY CONNECTOR. IF THERE ARE NO ISSUES FOUND WITH THE 20 WAY CONNECTOR USE SERVICE INFORMATION FOR THE DIAGNOSTIC TROUBLE CODE INSTRUCTIONS.
PIP-3869-C2016-08-26. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN TO ASSISTANCE DIAGNOSING AND REPAIRING VEHICLES THAT MAY HAVE AN INTERMITTENT CONCERN WITH ANY OF THE TRANSMISSION ELECTRICAL OR COMMUNICATION DIAGNOSTIC TROUBLE CODES. TECHNICIAN WILL INSPECT THE TRANSMISSION WIRING HARNESS THAT IS UNDER THE BEAUTY COVER FOR THE ENGINE. IT MAY BE PINCHED AT THE ENGINE BLOCK NEAR THE OIL FILTER OR HAVE A BARE SPOT. IF NO PROBLEM IS FOUND, THEN CHECK THE 20 WAY CONNECTOR FOR PROPER CONNECTION AND PIN FIT AND FULLY RESEAT THE 20 WAY CONNECTOR. IF THERE ARE NO ISSUES FOUND WITH THE 20 WAY CONNECTOR USE SERVICE INFORMATION FOR THE DIAGNOSTIC TROUBLE CODE INSTRUCTIONS.
08-06-04-0222008-05-21. Service bulletin. INTERMITTENT CHECK ENGINE LIGHT ON, ENGINE POWER REDUCED MESSAGE DISPLAYED IN DIC, DTC P2135 SET (INSPECT ENGINE WIRING HARNESS FOR CHAFING AND RECRIMP ECM TERMINALS, IF NECESSARY). *NJ UPDATE 8/7/2008. *PE
0708450032007-11-03. Service bulletin. INTERMITTENT NO START/LONG CRANK, START THEN STALL, CHECK ENGINE LIGHT ON, INTERMITTENTLY FUNCTIONING OR INOPERATIVE ELECTRICAL SYSTEMS, DTC P0442 OR P0449 SET (INSPECT UBEC AND REPLACE CONNECTORS AS NECESSARY) *NJ UPDATED 2/17/10. *PE
PIC-45782007-09-28. Service bulletin. EPS/STR WHEEL CONTROL FUSE (#19) OPEN. *KB UPDATED 10/04/07. *NJ UPDATED 8/7/09. *PE UPDATED 8/1/11. *PE
0606040452007-01-04. Service bulletin. NO START, LONG CRANK, LOSS OF ENGINE POWER, DISCHARGED BATTERY, CHECK ENGINE LIGHT ILLUMINATES, ENGINE POWER REDUCED MESSAGE DISPLAYED, DTC'S SET. *KB
36482006-01-25. Service bulletin. HESITATION ON ACCELERATION AFTER INTERNAL ENGINE REPAIRS - CHECK INJECTOR HARNESS ORIENTATION. *TT