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Service bulletins for the 2008 Chevrolet HHR

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.

939 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
SB-120892012-05-23. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE; ELECTRICAL SYSTEM:IGNITION. CHEVROLET/PONTIAC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A BINDING CONDITION HAS OCCUR BETWEEN THE HOUSING AND IGNITION LOCK CYLINDER WHICH MAKES THE IGNITION KEY DIFFICULT TO TURN OR REMOVE FROM IGNITION. *PE UPDATED 8/13/12. *PE
PB-10037A2011-06-27. Service bulletin. ELECTRICAL SYSTEM. GM: ONSTAR IS MAKING INCOMPLETE CALLS WITHOUT THE DRIVER KNOWING. WHEN HAVE A DATA CONNECTION. *RM
PI-02962011-05-23. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; ELECTRICAL SYSTEM:WIRING. GM: MALFUNCTION LIGHT IS ON AND THERE IS A MISFIRE. THERE MAY BE THREE TROUBLE CODES AND COULD BE A RESULT OF WIRING PROBLEMS AT THE FUEL INJECTOR. *RM
SB-08-09-41-0012010-06-02. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. CHEVROLET: AIR BAG READINESS LIGHT/SUPPLEMENTAL INFLATABLE RESTRAINT (SIR) LIGHT ON, DIAGNOSTIC TROUBLE CODE(S) (DTC) B0057, B0058, B0059, B0064, B0065, B0066 (INSPECT/REPAIR WIRING CONNECTOR). *PE
PIC-4610A2010-03-24. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING. CHEVROLET: ENGINE POWER IS REDUCED MESSAGE AND CHECK ENGINE LAMP ON WITH DTC P0841. THE CONCERN MAY BE INTERMITTENT. OTHER DTCS THAT MAY SET ARE P0532, P0522, P0452, P0335, P0106, P0101 AND P0068. THREE AREAS WHERE WIRE CHAFFING CAN OCCUR HAVE BEEN IDENTIFIED AND CONFIRMED. *PE
SB-09-09-41-0042010-03-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. DAEWOO/SATURN/OPEL/PONTIAC/CHEVROLET: INSTRUMENT PANEL CLUSTER (IPC) AIR BAG INDICATOR ILLUMINATED (INSTALL PROTECTIVE MATERIAL). UPON PERFORMING A DTC CHECK, THE TECHNICIAN MAY FIND A B0012-02, B0012-OE OR B0013-OE CODE STORED IN THE SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) SYSTEM. THIS CONDITION MAY BE CAUSED BY A SHORT TO GROUND IN THE YELLOW SIR WIRING HARNESS. *PE UPDATED 6/16/15. *PE
SB-5078A2009-11-25. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. CHEVROLET/OPEL/SATURN/CADILLAC/PONTIAC: A LOW BATTERY CONDITION ON ANY OF THE ABOVE LISTED VEHICLES COULD POTENTIALLY CAUSE THE SIR LIGHT TO COME. THE SDM UNDER LOW POWER SITUATIONS COULD SET CODES B0083 AND B0084. *PE
TB-080849017B2009-08-01. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. GENERAL MOTORS: THE INSTRUMENT GAUGES APPEAR TO BE ERRATIC/INACCURATE OR ARE INOPERATIVE. THIS CONDITION MAY BE INTERMITTENT AND OCCUR OVER ONE OR MULTIPLE IGNITION CYCLES, EVENTUALLY RESETTING ITSELF. *PE
08-06-04-0222008-05-21. Service bulletin. ELECTRICAL SYSTEM:WIRING. 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. ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD. 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. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. EPS/STR WHEEL CONTROL FUSE (#19) OPEN. *KB UPDATED 10/04/07. *NJ UPDATED 8/7/09. *PE UPDATED 8/1/11. *PE
41102007-08-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM. LONG CRANK, ENGINE WILL NOT START. *KB UPDATED 1/30/08. *NJ

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.