2008 GMC Envoy Technical Service Bulletins

936 technical service bulletins (TSBs) are on record for the 2008 GMC Envoy. 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.

• 10037570Apr 1, 2012Body and structure. Gm: on some truck models there is some frame corrosion. *rm updated on 5/2/2012.
• 10038294Jan 1, 2012Seat belts. Gm: there are seat belt problems: difficulty latching and unlatching buckle. Buckle release button is sticking. Seat belt warning light illuminated. Likely caused by sticky beverages that are spilled into the buckle assembly. *rm updated 4/3/12.
• 10032332Dec 1, 2011Electrical system. 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.
• 10029924Dec 1, 2011Air bags. General motors: diagnostic information for intermittent restraints, air bag (sir) indicator/lamp on with dtc(s) b0012, b0013, b0016, b0016, b0019, b0020, b0022, b0023, b0026, b0033, b0040, b0042 or b0044 set. This may be caused by a loose, missing, or broken connector position assurance (cpa) retainer at the air bag for the set dtc. Includes trailblazer ext. *pe updated 8/16/10. *pe updated 3/12/12.
• 10043185Nov 1, 2011Transmission and drivetrain. Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by grinding/ratcheting type noise coming from automatic transmission when shifting into park while in 4wd low (4lo) range.
• 10037184Oct 1, 2011Seat belts. Gm: service bulletin explaining when the safety belts are supposed to lock. *rm updated 12/6/11.
• 10040504Jul 1, 2011Engine cooling. Gm service campaign: see document search button for owner letter. 2008-2009 trailblazer/envoy. The vehicles may develop a crack in the exhaust manifold. It could result in increased exhaust noise.
• 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.
• 10038759Apr 1, 2011Electrical system. Gm: onstar is making incomplete calls without the driver knowing. When have a data connection.
• 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.
• 10030725Dec 1, 2010Engine cooling. Saab/hummer/gmc/chevrolet: malfunction indicator lamp (mil) illuminated, dtcs p0300-p0306, engine runs rough (inspect for water intrusion in spark plug recess area, replace spark plug and ignition coil, seal ignition coil bolt hole vents and seal hood air grille). *pe updated 6/7/11.
• 10024221Nov 1, 2010Brakes. Service stabilitrak indicator illuminated dtc c0131. *nj updated 3/15/10. *pe updated 5/25/11.
• 10037130Oct 1, 2010Brakes. Gm: the abs lights may come on intermittently with three possible trouble codes.
• 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.
• 10030590Jun 1, 2010Suspension, Transmission and drivetrain. Gmc/buick/oldsmobile/saab: bump or thump noise is heard coming from the rear suspension or felt in the floor. The information affect vehicles with g67 automatic level control rear suspension. *pe updated 3/30/11.
• 10032462Aug 1, 2009Steering. Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement is necessary. Analysis of returned power steering (ps) pumps that had been replaced for noise, no power assist, no or low pressure and leaking conditions has indicated a high number of no trouble found results. All 1997-2010 vehicles and light trucks; 2010 and prior hummers h2/h3 and saab 9-7x vehicles.
• 10026704Aug 1, 2008Fuel system. Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
• 10026649Jun 1, 2008Exterior lighting. Gmc: intermittent ses light due to dtcs p013b and/or p0411 dtc.
• 10026505Jun 1, 2008Electrical system. Chevrolet gmc service campaign: see document search button for owner letter. Vehicles equipped with an am/fm stereo with cd/mp3 player may have a condition where the radio may drain the vehicle's battery. Csc letter.
• 10026485Jun 1, 2008Equipment. Chevrolet gmc service campaign: see document search button for owner letter. Battery drain; reprogram radio. Csc letter was received.
• 10023732Jun 1, 2008Brakes. Vehicle shakes or vibrates at highway speeds. *nj updated 8/25/08.
• 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.
• 10024523Mar 1, 2008Electrical system. Various electrical concerns mil ses abs light lamp or indicator illuminated.
• 10024421Mar 1, 2008Electrical system. Ei07279 - horn inoperative from steering wheel horn pad. *nj updated 5/19/08.
• 10024345Feb 1, 2008Transmission and drivetrain, Suspension. Eaton locking differential chatter shudder noise on turns, equipped with a locking rear differential rpo g80. *nj updated 7/17/2008.
• 10020881Dec 13, 2007Air bags. Air bag indicator light is on. *kb updated on 12/13/07.
• 10023773Dec 1, 2007Transmission and drivetrain. Dtc c0327 with or without additional dtc's setting. With four wheel drive (4wd) only.
• 10019241Dec 1, 2007Brakes. Abs, red brake ,svc and 4wd light on hvac blower inoperative. *ak updated 1/30/08.
• 10022914Oct 4, 2007Electrical system. 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).
• 10023913Oct 1, 2007Equipment. Ei07213 - no cold air from vents, a/c inoperative, blows warm air (reset hvac control module)
• 10022660Sep 18, 2007Suspension. Boom/rumbling noise at highway speed
• 10023223Sep 1, 2007Latches, locks and linkages. Rear liftgate glass may not lock when using remote keyless entry (rke), key fob transmitter or door lock switch, and/or liftgate hatch or liftgate glass may lock then unlock when rear liftgate glass button is depressed (reposition lock cylinder wave washer and adjust lock rod)
• 10021019Feb 22, 2007Transmission and drivetrain. Slip condition in 2nd, 3rd, or 4th. Damaged 2-4 or 3-4 clutch. *kb updated 10/31/07.
• 10020964Feb 2, 2007Brakes. Abs light on dtc c0040 stored. *kb updated on 09/21/07.

← All problems reported for the 2008 GMC Envoy