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Service bulletins for the 2005 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.

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

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Bulletins, newest first
38932006-09-28. Service bulletin. ELECTRICAL SYSTEM:IGNITION. LOSS OF IGNITION 1 VOLTAGE TO THE IGNITION COILS. CONSUMER EXPERIENCED INTERMITTENT STALL, MISFIRE, OR CRANK NO START. THERE MAY BE NO TROUBLE CODES SET. *KB UPDATED 3/17/09. *PE
0603080022006-05-05. Service bulletin. SUSPENSION:FRONT:CONTROL ARM:UPPER ARM. REVISED UPPER CONTROL ARM REPLACEMENT. *TT
050235003A2006-03-16. Service bulletin. STEERING. EI05061 - INTERMEDIATE STEERING SHAFT CLUNK NOISE OR STICK-SLIP (FOLLOW STRATEGY BASED DIAGNOSTICS). 05-02-35-003 AND 05-02-35-003A NOT YET RECEIVED. *TT
36652006-01-25. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). 4WD INOPERATIVE AND POSSIBLE DTC C0327 STORED IN THE TRANSFER CASE CONTROL MODULE. *TT
3691A2006-01-09. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. FRONT HVAC BLOWER INOPERATIVE. *TT
3480A2006-01-07. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). RATTLE NOISE AT HIGHWAY SPEED IN 2WD. *TT
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
0508500122005-11-30. Service bulletin. SEATS. UNWANTED/LOOSE SEAT MOVEMENT. *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
0506010142005-11-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK UNDER EXTREME COLD TEMPERATURES (-34 DEGREES C) (-30 DEGREES F) OR COLDER). *TT
0508500082005-11-05. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. INTERMITTENT HEATED SEATS INOPERATIVE, DIAGNOSTIC TROUBLE CODE B3941 SET. *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
0208670092005-11-04. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. SUNROOF JAMS WHEN CLOSING. *TT
0507300122005-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E/4L65-E AUTOMATIC TRANSMISSION 2-3 SHIFT CLUNK. *TT
0507300132005-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E/4L65-E AUTOMATIC TRANSMISSION SECOND GEAR START, LACK/LOSS OF POWER WHEN ACCELERATING FROM A STOP. *TT
0508670022005-11-04. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. SERVICE INFORMATION IF SUNROOF WILL NOT CLOSE AND SYNCHRONIZATION PROCEDURE. *TT
0503100052005-11-03. Service bulletin. WHEELS. HANDLING CHARACTERISTICS OF VEHICLES WITH 20 INCH WHEEL/TIRE ASSEMBLIES INSTALLED. *TT
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
34882005-11-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FLUID LEAKAGE FRONT PUMP OR TORQUE CONVERTER AREA. *TT
35732005-11-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. UNWANTED OPERATION OF REAR WINDOWS. *TT

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