2008 Chevrolet Silverado Technical Service Bulletins

247 technical service bulletins (TSBs) are on record for the 2008 Chevrolet Silverado. 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.

• 10035764Sep 1, 2010Engine cooling, Fuel system. Chevrolet/gmc: check engine light on, fuel tank hard to fill, dtcs p0442, p0446, p0455 or p0449 set (replace evaporative emission (evap) vent valve solenoid assembly and add/relocate fileter box using service kit).
• 10031424Sep 1, 2010Transmission and drivetrain. Chevrolet gmc service campaign: see document search button for owner letter. Enhanced calibration for transmission overheat in extreme cold air temperatures. Located in certain us cold weather states; alberta, british columbia, manitoba, new foundland, northwest territories, ontario, quebec, saskatchewan, and yukon. Silverado hd and sierra hd 2006-2008. *pe csc letter was received (only). Updated. *pe program been…
• 10028264Sep 1, 2010Equipment, Electronic stability control, Electrical system. 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.
• 10036364Aug 1, 2010Engine cooling. Chevrolet/gmc: possible engine overheat or loss of coolant. Normal si diagnostics will lead to inspecting the water pump for proper operation. When water pump is removed, be sure to inspect the impeller.
• 10036524Jul 1, 2010Engine cooling, Electrical system. Cadillac/chevrolet/gmc: information on inspecting top post battery cable bolts, clamps and nuts during pre-delivery inspection (pdi).
• 10036564Jun 1, 2010Electrical system. Gmc/chevrolet: check trailer wiring message in dic poor connections at 7-way). This concern could be caused by a poor connection at the 7-way trailer connector. There are several manufacturers of 7-way (trailer side) connectors and no industry standard specifications for these connectors. Models avalanche, suburban, tahoe, sierra, silverado, sierra denali, yukon, yukon xl.
• 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.
• 10036546Jun 1, 2010Electrical system. Chevrolet/gmc: service trailer brake message with dtc(s) c1115, c1116, c1117, and/or c1118 (inspect wiring near parking brake pedal). This concern may be very intermittent and can occur with or without a trailer connected to truck.
• 10025668Jun 1, 2010Electrical system, Engine cooling, Transmission and drivetrain, Latches, locks…. Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, u0121, u0140 set (repair backed out terminal in transmission harness connector). Vehicles with 6 speed 6l80 (rpo myc), 6l90 (rpo myd) or hybrid two mode 2m70 automatic. Including 2008 tahoe and yukon hybrid models. *pe updated 3/28/11…
• 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, 2010Electrical system, Engine cooling, Transmission and drivetrain, Latches, locks…. 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.
• 10034364Jan 1, 2010Engine cooling. Chevrolet/gmc: snow or ice ingestion into air cleaner element, malfunction indicator lamp (mil) illuminated, engine power is reduced message displayed, dtc p0101 set (perform repair as outlined).
• 10032324Nov 1, 2009Engine cooling. Gmc chevrolet service campaign: see document search button for owner letter. Service engine soon light illuminated-exhaust gas recirculation (egr) cooler plugging prevention.
• 10032450Oct 1, 2009Electrical system. Chevrolet/gmc: inspect for wire harness chafes near connector x108. Dealer may encounter a concern of the ses light on with reduced power. Diagnostics may reveal dtc's p0193, p0522 and/or p0652.
• 10032395Aug 1, 2009Fuel system. Gmc/chevrolet/cadillac: vehicle fuel gauge inaccurate below 1/4 tank. On rare occasions, the vehicle has an inaccurate fuel gauge reading at 1/4 or a 1/8 of a tank.
• 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).
• 10032889Jun 1, 2009Engine cooling. Gmc/chevrolet: dtc p0101 with non gm air filter. May encounter concern of reduced power and ses light on. Diagnostics may reveal maf (mass air flow) sensor dtc p0101. If diagnostics were inconclusive its possible dtc p0101 is setting due to a non gm air filter. Non gm air filters have shown a slightly higher than normal maf reading.
• 10032888Jun 1, 2009Engine cooling. Gmc/chevrolet: engine coolant sensor dtcs p011a, p2184, and p2185. Dealer may encounter concern of ses light on or dtcs p011a, p2184 and p2185. Diesel engines have 2 ect (engine coolant temperature) sensors.
• 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.
• 10030750May 1, 2009Air bags. Gmc/chevrolet: sir mil on and tech 2 will not communicate with sdm. Some modules may set a communication dtc u0151 against sdm. Diagnostics may lead to replacement of sdm and replacing sdm may fix the concern for a short time or it may fail again on the first or second ignition key cycle. The hd silverado and sierras only.
• 10030110May 1, 2009Electrical system, Engine cooling, Fuel system. General motors: malfunction indicator lamp (mil) illuminated, intermittent dtc p0191, slow fuel rail pressure (frp) decay, wiring harness connections, voltage fluctuations/interruptions (follow correction information below). *pe updated 11/23/09.
• 10030092May 1, 2009Fuel system. General motors: the low fuel warning light comes on or the gauge shows empty when there is fuel in the tank. *pe updated 11/04/09.
• 10030207Apr 1, 2009Engine cooling. Chevrolet/gmc: diesel engine turbo dtc p2563 or p003a. May encounter a concern of ses light, reduced power, low power.
• 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.
• 10030111Apr 1, 2009Engine cooling. Diagnostic information on malfunction indicator lamp (mil) illuminated with dtcs p0442,p0446, p0451, p0452, p0453, p0454, p0455 and replacement of fuel tank pressure (ftp) sensor/module.
• 10025303Oct 1, 2008Engine cooling. Chevrolet service campaign: see document search button for owner letter. Ecm eeprom - reprogram ecm. All 2007 and certain 2008 cheverolet silverado and express and gmc sierra and savana equipped with 6.6l duramax va diesel (rpo lmm - vin 6) engine. Csc was received. *pe updated 5/5/09. Csc letter was received.
• 10026701Sep 1, 2008Exterior lighting, Latches, locks and linkages, Interior lighting, Equipment…. 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.
• 10026691Sep 1, 2008Tires. Gmc: tire pressure light stays on (reprogram rcdlr) even though tire pressure values are correct.
• 10026704Aug 1, 2008Fuel system. Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
• 10026149Aug 1, 2008Transmission and drivetrain. Gmc: flare and or harsh 2-3 shifts. This condition may be caused by leaking 1-2-3-4 and 3-5-r clutch fluid seal rings (230). Models cadillacs, chevrolets, gmc, hummers, pontiacs. Equipped with 6l80 (rpo myc) or 6l90 (rpo myd) automatic transmission.
• 10026665Jul 1, 2008Fuel system. Gmc: fuel rail pressure sensor performance dtc p0191. May set due to actual fuel rail pressure not dropping quickly enough when the engine is shut off.
• 10026650Jul 1, 2008Engine cooling. Gmc: oil leak at turbocharger air intake pipe. Initial inspection ma reveal a leak that looks as it is coming from the rear of the engine.
• 10026108Jul 1, 2008Engine cooling. Gmc: egr low flow dtc p0401. Vehicles that are equipped with the 6.6l diesel engine rpo code lm.
• 10026007Jul 1, 2008Engine cooling. Gmc: no start, no crank, intermittent electrical operations (check for poor connections within engine wiring harness junction block).
• 10020883Jul 1, 2008Equipment, Brakes. 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.
• 10026664Jun 1, 2008Transmission and drivetrain. Gmc: leak from transmission oil cooler line fitting on vehicles built in april or may, 2008.
• 10021415Jun 1, 2008Electrical system. Fuel gauge erratic in freezing temperatures p0463. *kb with one of the following engine rpo's: ly2, ly5, ly6. Lh6, l76, l92. Updated 1/30/08. *nj updated 12/5/08.
• 10025681May 1, 2008Engine cooling. Lmm, clean exhaust filter light illuminated, mil/ses light illuminated with dtc(s) p244b and/or p2463 set (perform all si diagnostics for dtc(s) set, if ntf, replace air filter). Vehicles with 6.6l duramax diesel engine.
• 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.
• 10025602May 1, 2008Engine cooling. Service update for inventory and customer vehicles; turbocharger vane position sensor - replace; expires with 5 year/100,000 mile (160,000 km) powertrain warranty.
• 10026441Apr 1, 2008Suspension. Gm: rear axle gear whine noise from hd pickup trucks equipped with 11.50: ring gear and mw7 automatic transmission (diagnose ring and pinion).
• 10025402Apr 1, 2008Latches, locks and linkages, Electrical system, Transmission and drivetrain…. Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, 70140 (repair backed out terminal in transmission harness connector).
• 10025224Apr 1, 2008Engine cooling. Blower motor inoperative (replace blower motor) for extended and crew cab models only.
• 10023413Oct 1, 2007Exterior lighting. Right front turn signal inoperative.

← All problems reported for the 2008 Chevrolet Silverado