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Service bulletins for the 2003 GMC Envoy

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.

693 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
PIC-4935-E2016-08-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
PIC-5050-A2016-08-17. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. DEALER IS TO CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE IF THE CONCERN IS STILL PRESENT.
PB-10037A2011-06-27. Service bulletin. ELECTRICAL SYSTEM. GM: ONSTAR IS MAKING INCOMPLETE CALLS WITHOUT THE DRIVER KNOWING. WHEN HAVE A DATA CONNECTION. *RM
08089-B2009-02-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE
44862007-10-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. ONE OF THE FOLLOWING CONCERNS WHEN PROGRAMMING THE MILEAGE OR THE HOURS INTO AN EXCHANGE INSTRUMENT PANEL CLUSTER THAT IS RECEIVED FROM AN ELECTRONIC SERVICE CENTER (ESC). *NJ
43382007-06-15. Service bulletin. ELECTRICAL SYSTEM. LIGHTS FLICKER ERRATIC OPERATION OF VEHICLES ELECTRONICS. *KB
33002007-03-22. Service bulletin. ELECTRICAL SYSTEM:HORN. HORN INOPERATIVE AT TIMES. *KB
3756A2006-01-25. Service bulletin. ELECTRICAL SYSTEM. IPC GAUGES AND AC INOPERATIVE, SEVERAL INDICATORS ILLUMINATE DTCS U1016 U1000. *TT
0507300212005-11-05. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. IGNITION KEY WILL NOT REMOVE FROM IGNITION LOCK CYLINDER. *TT
35772005-10-27. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY. NO CRANK NO START NO DIAGNOSTIC TROUBLE CODES. *TT
5102005-09-03. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. INTERMITTENT DEAD BATTERY. *SC
3300C2005-04-18. Service bulletin. ELECTRICAL SYSTEM:HORN. APPLICATION OF HORN AT HORN PAD INOPERATIVE. RKE FUNCTION FOR PANIC ALARM WORKS. *TT
32632005-01-28. Service bulletin. ELECTRICAL SYSTEM. 125A MEGA FUSE OPENS WHEN ATTEMPTING TO JUMP START. *EH
0408450102004-12-28. Service bulletin. ELECTRICAL SYSTEM. VARIOUS INTERIOR ELECTRICAL CONCERNS, IP GAUGES/LIGHTING INOPERATIVE, HVAC CONTROLS INOPERATIVE, BLOWER MOTOR INOPERATIVE, RADIO INOPERATIVE, FLASHER INOPERATIVE. *TT
31922004-12-15. Service bulletin. ELECTRICAL SYSTEM. REDUCED ENGINE POWER MESSAGE AND/OR CHECK ENGINE LIGHT WITH ANY COMBINATION OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES: P0107, P0112, P0452, P1120, P1220, P1221, P1271, P1275, P1280, P1481, P1515, P1540, P1633, P1635, P1639 AND P1682 POWERTRAIN CONTROL MODULE REPEAT. *TT
3061C2004-12-03. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE C0327 WITH OR WITHOUT ADDITIONAL DIAGNOSTIC TROUBLE CODES SETTING. *TT
32162004-12-02. Service bulletin. ELECTRICAL SYSTEM:IGNITION. ERRATIC OPERATION OF PERSONALIZATION WITH IGNITION CYCLE. *EH
30792004-11-17. Service bulletin. ELECTRICAL SYSTEM. INTERMITTENT P0483 DIAGNOSTIC TROUBLE CODE. *TT
30832004-11-17. Service bulletin. ELECTRICAL SYSTEM:IGNITION. KEY MAY NOT TURN OR BIND IN THE IGNITION. *TT
31722004-11-08. Service bulletin. ELECTRICAL SYSTEM. MULTIPLE ELECTRICAL CONCERNS AND DIAGNOSTIC TROUBLE CODE U1064. VARIOUS MODELS INCLUDING 2005 BUICK RAINIER AND 2005 CHEVROLET TRAILBLAZER. *TT
31162004-11-05. Service bulletin. ELECTRICAL SYSTEM. ENGINE STALLS WHEN AIR CONDITIONING IS TURNED ON AT IDLE. (TO INCLUDE 2005 CHEVROLET TRAILBLAZER, 2005 OLDSMOBILE BRAVADA, AND BUICK RAINIER) *SC UPDATED 01-26-07. *KB
31382004-11-04. Service bulletin. ELECTRICAL SYSTEM. REDUCED POWER LIGHT ON AND DIAGNOSTIC TROUBLE CODE P1680 P1221 AND/OR P1271 STORED IN THE POWER CONTROL MODULE. *SC
30892004-10-04. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT
15281022004-08-24. Service bulletin. ELECTRICAL SYSTEM. 02-04 4.2L LL8 DIAGNOSTIC TROUBLE CODE P0171. *MJ
30162004-08-23. Service bulletin. ELECTRICAL SYSTEM. VARIOUS ELECTRICAL CONCERNS. *TT

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