2007 Chevrolet Avalanche Technical Service Bulletins

1,130 technical service bulletins (TSBs) are on record for the 2007 Chevrolet Avalanche. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10036464May 1, 2011Engine cooling. Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. Upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/11. *pe updated 5/9/11. *pe updated 5/25/11. *pe updated 06/16/2011. *kb updated a second time on 06/16/2011. *kb updated 6/27/11.
• 10039024Apr 1, 2011Body and structure. Gm: the chrome outside door handle is cracked or loose at the screw where it attaches. Grease may have cause the screw to degrade or the torque was too high.
• 10038759Apr 1, 2011Electrical system. Gm: onstar is making incomplete calls without the driver knowing. When have a data connection.
• 10037141Apr 1, 2011Fuel system. Gm: fuel tank may be hard to fill. Malfunction light may be on. There may be four different fault codes present. *rm updated on 6/30//2011.
• 10038624Mar 1, 2011Engine cooling. Gm: the air bag light is on with a stored trouble code.
• 10038295Feb 1, 2011Other or unknown. Gm: information on fixing multiple situations right the first time.
• 10037941Jan 1, 2011Engine cooling. Gm: service engine soon light is on with a misfire and a possible tick noise.
• 10037933Jan 1, 2011Engine cooling. Gm: the service engine soon light is on, there is also a misfire or engine noise. There are multiple possible causes.
• 10037552Jan 1, 2011Transmission and drivetrain. Gm: there may be a bump noise or clunk feel when stopping or launching. This may be caused by a slip in the transmission.
• 10035804Oct 1, 2010Engine cooling. Cadillac/chevrolet/gmc/pontiac: engine oil consumption on aluminum block engines with active fuel management (afm) (install afm oil deflector and clean carbon from cylinder). Caused by an uncovered afm valve that sprays oil on the bottom of the cylinders when the vehicle is in four cylinder mode. *pe updated 5/9/11.
• 10036324Sep 1, 2010Engine cooling. Pontiac/saturn/buick/gmc/chevrolet/cadillac/hummer: vehicle start and stalls after theft deterrent module replacement. Model years 2006-2011. Does not apply to vehicles with keyless access system.
• 10028264Sep 1, 2010Equipment, Electrical system, Electronic stability control. General motors: during normal diagnostics and/or repair verification the abs light, traction control and/or stabilitrak indicators may be on with no dtc's displayed by the ebcm. *pe updated 11/17/10. *pe updated 3/14/11.
• 10036485Aug 1, 2010Engine cooling. Buick/chevrolet/gmc/pontiac/saab: excessive oil consumption and/or blue exhaust smoke-investigation update. In most cases did not start until the engine accumulated approximately 30,000 miles or more.
• 10036524Jul 1, 2010Electrical system, Engine cooling. Cadillac/chevrolet/gmc: information on inspecting top post battery cable bolts, clamps and nuts during pre-delivery inspection (pdi).
• 10036550Jun 1, 2010Electrical system. Buick/cadillac/chevrolet/gmc/hummer/pontiac/saturn: additional diagnostic information for u0140 or u0073. Vehicle may exhibits some symptom(s) as door locks cycle while driving; intermittent no start; service stabilitrak dic message; speedometer and tachometer freeze while driving.
• 10034404Feb 1, 2010Air bags, Seat belts. Buick/cadillac/chevrolet/gmc: airbag light on, dtc b0071 and b0081 set (diagnose and replace right front seatbelt buckle, if necessary). Upon investigation, the technician may find dtc b0071 set in the passenger presence system (pps) and a dtc b0081 in the sensing and diagnostics module (sdm).
• 10030244Feb 1, 2010Transmission and drivetrain, Electrical system, Latches, locks and linkages…. Cadillac/chevrolet/gmc: locations of high speed gmlan wiring concerns. Gauges inoperative, no crank, harsh transmission shifting, no transmission shifting, door locks cycling and indicators on. *pe updated 11/17/10.
• 10032457Sep 1, 2009Suspension. Cadillac/chevrolet/gmc: proper application and availability of ball studs for aluminum vs. Cast iron front lower control arms.
• 10026005Aug 1, 2009Exterior lighting. Gmc: stop lamps intermittently turn off after coming to a complete stop while still having pressure on brake pedal (replace stop lamp switch). *pe updated 3/1/10.
• 10032336Jul 1, 2009Brakes, Air bags. Gmc/cadillac/chevrolet: air bag readiness light on, service air bag message, inflatable restraint sensing and diagnostic module (sdm) corrosion (replace sdm/cut and remove carpet pad).
• 10032866Jun 1, 2009Electrical system. Gmc/chevrolet/cadillac: sir mil on with dtc b1325 sym 03. During a low battery/voltage condition the passenger presence system may set a b1325 sym 03 along with other faults that are caused by the low batter/voltage condition.
• 10030724May 1, 2009Engine cooling. Gmc/cadillac/chevrolet: check engine light on, engine misfire, hard start, rough idle, hesitation, loss of power, poor performance, noise, dtcs p0300, p0301, p0302,p0303, p0304, p0305, p0306, p0307, p0308 set (replace engine).
• 10030122Apr 1, 2009Steering. General motors: the left and/or right steering wheel lower (spoke) cover is warped, loose, discolored or just fits poorly in the steering wheel. The paint finish seems to be peeling.
• 10026701Sep 1, 2008Exterior lighting, Visibility (wipers, defrost, mirrors), Latches, locks and…. Gmc: bmc failure after windshield wiper operation-keywords: ajar door dome driver dimmer flasher fog haul headlight head high hazard inop inoperative lamp light lock low not on off power park radio rap repeat signal shut speed stay switch turn tow unlock unwanted window. May be due to internal bcm damage.
• 10026704Aug 1, 2008Fuel system. Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
• 10026007Jul 1, 2008Engine cooling. Gmc: no start, no crank, intermittent electrical operations (check for poor connections within engine wiring harness junction block).
• 10020883Jul 1, 2008Brakes, Equipment. Service stability lamp diagnostic trouble code (dtc) c0561. *kb updated 9/30/08.
• 10026697Jun 1, 2008Electrical system. Gmc: intermittent no crank and/or discharged battery. Could be caused by a loose connection at the 175 amp mega fuse located on the passenger side of the cowl.
• 10025670May 1, 2008Transmission and drivetrain. 4l60-e/4l65-e/4l70-e automatic transmission fluid leak from oil pump or bell housing area (replace torque converter hub-to-oil pump seal assembly). Attn: this bulletin applies to vehicles built prior to december 2007.
• 10023413Oct 1, 2007Exterior lighting. Right front turn signal inoperative.

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