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Service bulletins for the 2006 Chevrolet Avalanche

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.

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

By type

By component

By trouble code

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Bulletins, newest first
3637A2006-01-07. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. BRAKE PEDAL ASSEMBLY REPLACEMENT BRACKET SERVICE KIT. *TT UPDATED 3/26/10. *PE
37662006-01-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. FRONT BLOWER INOPERATIVE STAY RUNNING DURING LOW AMBIENT TEMPERATURE. *TT
3287B2006-01-06. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. HEATED SEAT INOPERATIVE OR SHUT OFF IN 30 SECONDS. DIAGNOSTIC TROUBLE CODES B2435, B2440, B3606 AND/OR B1825 SET IN THE DRIVERS SEAT MODULE. *TT
3609A2006-01-06. Service bulletin. POWER TRAIN. HARSH 1-2 SHIFT, MALFUNCTION INDICATOR LAMP ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0894 STORED IN PCM. *TT
0508440272005-12-05. Service bulletin. ELECTRICAL SYSTEM. INFORMATION ON VEHICLES WITH A STORED HISTORY DTC B1259 ANTENNA GROUND CIRCUIT. *TT
05-04-21-0032005-11-09. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SERVICE 4WD LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) C0374 SET. *TT UPDATED 10/05/07. *NJ INSPECT WIRING HARNESS TO TRANSFER CASE SPEED SENSORS, REPLACE WIRING HARNESS. UPDATED 7/18/08 *PE
0507300172005-11-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E/4L65-E AUTOMATIC TRANSMISSION/TORQUE CONVERTER CLUTCH (TCC) SHUDDER, WATER IN TRANSMISSION. *TT
0501380122005-11-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. EI05082 - LOSS OF BLOWER MOTOR SPEEDS EXCEPT FOR HIGH SPEED OR INOPERATIVE. *TT UPDATED. *KB UPDATED *KB
35692005-11-02. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. SERVICE VME - 8.6 INCH REAR AXLE WHICH EXHIBIT A GEAR WHINE CONDITION (UNTIL DECEMBER 23, 2005). *TT
34242005-11-02. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT
35732005-11-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. UNWANTED OPERATION OF REAR WINDOWS. *TT
33312005-10-27. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. VOLTMETER IS FLUCUATING BETWEEN 12 AND 14 VOLTS ON THEIR NEW 2005 CHEVROLET/ GMC/ CADILLAC MODEL YEAR LIGHT DUTY FULL SIZE PICKUP AND UTILITY. *SC
3687A2005-09-21. Service bulletin. SERVICE BRAKES, HYDRAULIC. HOOT OR SQUEAK TYPE NOISE ON RAPID BRAKE APPLY. *TT
37042005-09-21. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. RIDE SIDE CAMPER MIRROR UNABLE TO BE ADJUSTED FAR ENOUGH IN. *TT
050525003A2005-05-13. Service bulletin. SERVICE BRAKES, HYDRAULIC. SERVICE STABILITY MESSAGE ON, DIAGNOSTIC TROUBLE CODE (DTC) C0131, C0196, C0290 AND/OR C0292 SET. *TT
33092005-04-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INVESTIGATION OF EXTENSION SEAL LEAKS ON 4L60E AUTOMATIC TRANSMISSION. *TT
33912005-04-21. Service bulletin. ELECTRICAL SYSTEM. UNWANTED OPERATION OF THE HAZARD FLASHERS. *EH
33862005-04-21. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM. LACK OF STEERING ASSIST OR SHUDDER DURING PARKING LOT TYPE MANEUVERS. *TT
0509410012005-04-19. Service bulletin. AIR BAGS. SUPPLEMENTAL INFLATABLE RESTRAINT (SIR) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTC) B0026 AND/OR B004. TO INCLUDE 2003-2006 CHEVROLET/GMC FULL SIZE PICKUP AND UTILITY MODELS. *TT
3300C2005-04-18. Service bulletin. ELECTRICAL SYSTEM:HORN. APPLICATION OF HORN AT HORN PAD INOPERATIVE. RKE FUNCTION FOR PANIC ALARM WORKS. *TT
0002350032005-02-11. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL. *EH UPDATED *EH UPDATED. *KB
3118B2005-01-31. Service bulletin. STRUCTURE:BODY. POP CLUCK CLICK NOISE ON RIGHT OR LEFT TURNS. *EH
32272005-01-31. Service bulletin. STRUCTURE:BODY:TAILGATE. TAILGATE CABLE SLACK. THIS INCLUDES 1998-2006 CHEVROLET AND GMC FULL AND MID SIZE TRUCKS. *EH UPDATED. *KB
040310007D2005-01-11. Service bulletin. SUSPENSION. 20 INCH WHEELS AND TIRES AVAILABLE THROUGH GMSPO. *TT UPDATED. *NM
32432004-12-15. Service bulletin. STEERING. POP/CLUNK/CLICK NOISE ON RIGHT OR LEFT TURNS. *EH

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