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Service bulletin 060421002

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 id10020841
Published by NHTSA2007-01-24
Manufacturer's number060421002
Manufacturer's date2006-06-01
NHTSA componentELECTRICAL SYSTEM:WIRING

NHTSA's summary

SERVICE 4WD/TRACTION OFF MESSAGE DISPLAYED, TRACTION OFF LIGHT ILLUMINATED. TRANSFER CASE SELECTOR SWITCH INOPERATIVE, DTC'S C0276 & C0327 SET. *KB

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

Trouble codes named

C0276, C0327

Vehicles listed
HUMMER H32006

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.
SB-09-06-03-004A2010-03-06. Service bulletin. GM/HUMMER/SAAB: INTERMITTENT ILLUMINATION OF MIL, SERVICE LAMPS, SERVICE MESSAGES, OR DTC SET BY VARIOUS CONTROL MODULES-DIAGNOSING AND REPAIRING FRETTING CORROSION (DISCONNECT AFFECTED CONNECTOR AND APPLY DIELECTRIC LUBRICANT). *PE UPDATED 3/26/10. *PE UPDATED 6/6/11. *PE UPDATED 3/12/12. *PE
0708450022007-11-03. Service bulletin. SERVICE ALERT: CONCERNS WITH AFTERMARKET FUSES IN GM VEHICLES 2008 AND PRIOR GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN) *NJ
0608450042007-01-24. Service bulletin. INSTRUMENT PANEL, BODY AND GENERAL WIRING HARNESS REPAIR. 2007 AND PRIOR GM PASSENGER CARS AND TRUCKS. *KB
39242006-10-27. Service bulletin. SES LIGHT DUE TO A P060E DTC INSPECT APP AND TP CIRCUITS. *KB
3508C2006-01-25. Service bulletin. SES LIGHT AND REDUCED ENGINE POWER MESSAGE WITH DTCS P0030, P0036, P0135, P0141, P1682, AND P2101 - INSPECT POWERTRAIN RELAY OPERATION. *TT
36082005-10-26. Service bulletin. THE ABS LIGHT COMES ON DTC C0035 AND OR C0040. *SC