2012 Chevrolet Express Technical Service Bulletins

1,783 technical service bulletins (TSBs) are on record for the 2012 Chevrolet Express. 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.

• 10137901May 9, 2014Fuel system. This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
• 10092902May 9, 2014Engine. 14096 - emissions recall. General motors has decided to conduct a voluntary emission recall involving certain vehicles equipped with a gasoline engine. The oxygen (o2) sensor may fracture if condensation from the catalytic converter enters the o2 sensor and causes a sudden temperature change. If this occurs, the malfunction indicator lamp will illuminate. Dealers are to inspect and, if necessary, replace both bank…
• 10061115May 9, 2014Engine cooling. Summary to be provided on a future date.
• 10061129May 7, 2014Electrical system. Summary to be provided on a future date.
• 10137890May 2, 2014Equipment, Transmission and drivetrain, Engine cooling. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
• 10247308May 1, 2014Tires, Seat belts, Electrical system, Other or unknown, Air bags. Passenger Side Instrument Panel Performance
• 10247307May 1, 2014Air bags, Tires, Seat belts, Other or unknown, Electrical system. Passenger Side Instrument Panel Performance
• 10247303May 1, 2014Back-over prevention (rear camera), Engine cooling. Oxygen Sensor Fracture
• 10247302May 1, 2014Engine cooling, Back-over prevention (rear camera). Oxygen Sensor Fracture
• 10247296May 1, 2014Other or unknown, Electrical system. Passenger Side Instrument Panel Performance
• 10247295May 1, 2014Electrical system, Other or unknown. Passenger Side Instrument Panel Performance
• 10246983May 1, 2014Equipment. Checking Smartphone Bluetooth Software Update Status
• 10067267May 1, 2014Electrical system. Summary to be provided on a future date.
• 10067266May 1, 2014Electrical system. Summary to be provided on a future date.
• 10067262May 1, 2014Equipment. Summary to be provided on a future date.
• 10067261May 1, 2014Equipment. Summary to be provided on a future date.
• 10067255May 1, 2014Equipment. Summary to be provided on a future date.
• 10067254May 1, 2014Equipment. Summary to be provided on a future date.
• 10056237May 1, 2014Electrical system. General motors: due to loose ground terminal connections, in some vehicles and trucks experience, accessories malfunctions, dic messages, ipc warning indicators, ses light on.
• 10135227Apr 28, 2014Equipment. This informational bulletin provides information to the dealers on properly maintaining vehicles in inventory.
• 10093959Apr 27, 2014Equipment. 12050b - customer satisfaction (revised expiration date). Certain vehicles, all equipped with a 10.5" rear axle, may have a condition in which the rear axle right-hand side bearing adjuster clip and bolt may come loose within the rear axle. If this occurs, a grinding noise and a vehicle vibration would be noticeable when the vehicle is in motion. If the adjustor or bolt punctures the differential cover pan, a fluid…
• 10061175Apr 27, 2014Suspension. Summary to be provided on a future date.
• 10061165Apr 24, 2014Air bags. Summary to be provided on a future date.
• 10135219Apr 22, 2014Exterior lighting. This informational bulletin explains condensation in exterior lights and replacment guidelines for warranty replacement.
• 10135218Apr 22, 2014Equipment. This informational bulletin is to assist with the identification of issues that are not considered warrantable.
• 10111818Apr 22, 2014Engine. This Preliminary Information communication advises the technician that the 2010 through 2015 6.6L Duramax Diesel Engine Fuel Injection Pump Part numbers 12645102, 12658095 and 12661059 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10111811Apr 18, 2014Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle.
• 10111810Apr 17, 2014Equipment. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
• 10093955Apr 17, 2014Fuel system. 13410 - emissions recall. Cleanfuel has decided to conduct a voluntary emission recall involving certain vehicles, equipped with a 3-tank liquefied petroleum gas (lpg) system (ko7 with ufm). The lpg fuel tanks on these vehicles may not have been cleaned sufficiently to remove weld debris particles during the manufacturing process.
• 10061164Apr 17, 2014Fuel system. Summary to be provided on a future date.
• 10111805Apr 16, 2014Engine cooling, Engine. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Technician will need to check the valve train for movement when the engine is cranked. If the valve train is not moving while the crankshaft is moving the front cover will need to be removed to inspect for a sheared cam sprocket locator pin. If the cam…
• 10135201Apr 14, 2014Equipment. This information bulletin provides the technician with additional information on fixing the vehicle right the first time by listing possible concerns to specific vehicles.
• 10135197Apr 11, 2014Engine cooling. The purpose of this document is to provide the Service Personnel with a guide to determine which Service Information documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor Message Displayed, and a Reductant Fluid Quality Test Status that will Pass, Time Out, Fail or Interrupt and other DEF Messages that may be observed.
• 10135194Apr 7, 2014Electrical system, Latches, locks and linkages. This preliminary bulletin provides a procedure to reprogram the BCM if the customer states the power doors re-lock automatically within 2 minutes after being unlocked with the RKE.
• 10111783Apr 4, 2014Fuel system. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.
• 10250013Apr 1, 2014Electrical system. High Voltage Safety ? High Voltage Disabling
• 10247306Apr 1, 2014Other or unknown, Seat belts, Electrical system, Tires, Air bags. Passenger Side Instrument Panel Performance
• 10247294Apr 1, 2014Electrical system, Other or unknown. Passenger Side Instrument Panel Performance
• 10245824Apr 1, 2014Suspension. Rear Axle Grinding Noise, Vibration - Inspect Rear Axle
• 10070943Apr 1, 2014Engine cooling. Summary to be provided on a future date.
• 10069289Apr 1, 2014Equipment. Summary to be provided on a future date.
• 10067265Apr 1, 2014Electrical system. Summary to be provided on a future date.
• 10067253Apr 1, 2014Equipment. Summary to be provided on a future date.
• 10055840Apr 1, 2014Engine. Gmc/chevrolet: some vehicles/trucks may experience a no cranking or starting, caused by possible excessive leakage from cylinder past exhaust or intake valve, low static compression, sensor is disconnected, or while cranking, valve train fails to move. Model 2009-2014 corvette, camaro, express, ss, silverado, suburban, tahoe, savana, sierra, yukon.
• 10137887Mar 28, 2014Electrical system. This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not
• 10111885Mar 28, 2014Exterior lighting, Electrical system. This Preliminary Information communication provides information to the technician about vehicles proper operation of the stop and/or turn signals. For vehicles without Regular Production Option Code V4D circuit 618 is for the left stop and turn signal and circuit 619 dark green is for the right stop and turn signal. For vehicles with Regular Production Option Code V4D circuit 618 yellow is for the left turn signal…
• 10061147Mar 27, 2014Electrical system. Summary to be provided on a future date.
• 10061144Mar 26, 2014Electrical system, Air bags. Summary to be provided on a future date.
• 10111875Mar 24, 2014Engine. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.
• 10137868Mar 19, 2014Engine cooling. This informational bulletin provides information to the customer to clean the exhaust filter when prompt to or the MIL may come on and the truck DPF system may fail.

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