2011 Chevrolet Silverado Technical Service Bulletins

274 technical service bulletins (TSBs) are on record for the 2011 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.

• 10112995Apr 22, 2013Engine cooling. This Preliminary Information communication provides information to the technician of additional information while diagnosing a diagnostic trouble code P0420. Check for a possible leak in the exhaust system behind the bank one number 2 oxygen sensor. If a leak is found or there is an aftermarket utility bed or trailer hitch installed. Check for a minimum clearance of 1.5 to 2 inches of the exhaust system.
• 10112974Apr 16, 2013Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P0420. Technician will need to follow published Service Information diagnostics. Technician will check for a possible leak in the exhaust system behind the bank 1 sensor 2 O2 sensor. Technician will need to…
• 10112973Apr 16, 2013Equipment. This Preliminary Information communication provides information to the technician about vehicles that for no reason the alarm will go active. Technician will need to use a scan tool to verify that the alarm was activated by the inclination sensor. If the trigger is the inclination sensor, inspect the sensor's mounting location. Technician will need to relocate the sensor if it is attached to the driver's side lower…
• 10112966Apr 12, 2013Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have an audible engine whine noise at 1500-1800 revolutions per minute. Technician will need to check the coolant level, remove serpentine belt to verify noise goes away, rotate the thermostat 90 degrees and retest, then replace thermostat and retest. Technician will replace the water pump if replacing the…
• 10112958Apr 5, 2013Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.
• 10112955Apr 4, 2013Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Technician determines if the tick noise is possibly coming from the exhaust manifold, as this noise could easily be mistaken for an engine tick noise.
• 10052297Apr 1, 2013Electrical system. General motors: on some trucks and passenger vehicles, accessory power outlets (apo) and trailer lighting are common accessed electrical systems that are affected by devices that are plugged in and become inoperative due to an open fuse and no problem with vehicle identified. Models years 2010-2014 trucks and passenger. No models.
• 10052205Apr 1, 2013Engine cooling. General motors: service engine soon light illuminated on dash. There may also be increased engine noise, or possible higher rpm shifts, and reduced a/c performance.
• 10112901Mar 14, 2013Engine cooling, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that will not move in forward or reverse. Technician may find Diagnostic Trouble Code P0701 P0729 P0731 P0732 P0733 P0734 P0735 P0751 P0756 P0761 P0877 Or P2723 set. Technician will need to inspect the valve body separator plate orifices for debris.
• 10043850Feb 1, 2013Steering. Gmc: hydraulic power steering leak at hose connection to steering rack. All potential leaks should be completely cleaned and indentified before attempting to repair or replace any power steering components. *js updated 4/22/13.
• 10112763Jan 31, 2013Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a cold air leak on the front passenger side while driving. Technician will need to use black RTV silicone and apply over the seam between the upper and lower Heater-Vent-Air Conditioning case halves.
• 10112745Jan 30, 2013Back-over prevention (rear camera), Equipment. This Preliminary Information communication provides information to the technician that during the Pre-Delivery Inspection it may be noticed that the backup alarm is inoperative. Technician can locate the wire harness on the right rear of the frame. Technician can route the harness up and over the spare tire hoist tube and connect to the backup alarm.
• 10112744Jan 29, 2013Engine, Fuel system. This Preliminary Information communication advises the technician that 2013 6.6L Duramax Diesel Engine Regular Production Option Code (LGH and LML) part number 12638502 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.
• 10112740Jan 25, 2013Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that may have a service 4WD message displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code C0379. Technician will need to inspect the front axle actuator connector for signs of moisture intrusion. If there is corrosion on the terminals at either location replace the actuator and harness.
• 10112737Jan 23, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 miles per hour at any given speed when looking straight at the needle.
• 10112734Jan 22, 2013Engine cooling. This Preliminary Information communication advises the technician that vehicles with engine Regular Production Option Code LGH or LML may have an Exhaust Fluid Quality Poor message displayed on the Driver Information Center. Technician will need to complete the current Service Information diagnostic for any current Diagnostic Trouble Codes or symptoms found.
• 10112733Jan 22, 2013Fuel system. This Preliminary Information communication provides information to the technician that engineering is asking for additional information if SI diagnosis leads to replacement of the Indirect Fuel Injector for a P0420 Diagnostic Trouble Code. Technician should follow published Service Information diagnostics for Diagnostic Trouble Code P0420.
• 10112725Jan 16, 2013Engine. This Preliminary Information communication provides information to the technician about vehicles that have misfires on cylinders 1, 4, 6 and 7. Technician should inspect the camshaft part numbers. Technician should ensure to use part number for the application by using the numbers stamped on the cam.
• 10112717Jan 14, 2013Engine cooling, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a rough idle and/or momentary lack of power after cold starting the engine and immediately placing the transmission in gear. Technician should follow published Service Information diagnostics first. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10051760Jan 1, 2013Engine. Chevrolet/gmc: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. Models 2009-2013 express, silverado, suburban, savana, sierra.
• 10112697Dec 27, 2012Equipment, Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308.
• 10113849Dec 20, 2012Engine cooling. This informational bulletin provides information on the proper oils to use on GM vehicles including information regarding the differences of the Dexos oils.
• 10112690Dec 18, 2012Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a compass that's not accurate or slow to update. Technician should check for a magnetic base roof mounted accessory interfering with the compass module.
• 10112688Dec 18, 2012Transmission and drivetrain. This Preliminary Information communication advises the technician that 2ML70 Transmission Assembly will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10113843Dec 17, 2012Equipment. This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor Operations and Customer Enthusiasm
• 10112687Dec 17, 2012Equipment, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that loose connection between the vehicle and a Bluetooth phone. Technician will need to use a scan tool to check the "Firmware Over-the-Air" value. If the "Firmware Over-the-Air" value is up to date and customer's concern is still present contact General Motors Technical Assistance Center for further assistance.
• 10112668Dec 13, 2012Exterior lighting. This Preliminary Information communication provides information to the technician about the puddle light operation. Technician should be advised that the puddle lamps to operate, "Approach Lighting" must be turned on using the Drivers Information Center buttons.
• 10112655Dec 12, 2012Wheels, Tires. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
• 10112648Dec 12, 2012Electrical system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles with a "Service Charging System" message displayed on the Driver Information Center and/or a low voltage reading on the volt gauge during the first several minutes after a cold start. Technician may find a Diagnostic Trouble Code B1517 sym 03. If this concern only occurs during the first several minutes of a cold start…
• 10113837Dec 7, 2012Equipment. This informational bulletin provides a list off all the issues revolving around new vehicles for a one stop place to find growing concerns around them.
• 10113831Dec 4, 2012Equipment. This preliminary information bulletin provides a descritption of operation of the echo control and noise cancellation settings for concernc regarding noice drop outs during calls and muffled sound.
• 10112615Nov 29, 2012Visibility (wipers, defrost, mirrors). This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have windows inoperative while the engine is running but work when the engine is off. Technician should look for aftermarket parts and remove them and retest the windows before any in depth diagnostics are performed.
• 10112614Nov 29, 2012Equipment. This Preliminary Information communication provides information to the technician about customers may inquire about the availability of the passenger compartment air filter. Dealer should advise the customer starting in 2003 the passenger compartment air filter is no longer available as a factory option.
• 10112613Nov 29, 2012Tires. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
• 10112609Nov 28, 2012Body and structure. This Preliminary Information communication provides information to the technician about vehicles that the customer or up-fitter may have removed the rear bumper, install a different rear bumper, or add a different box/flat bed/cube box/hitch, etc. to the rear of the truck, which affects the rear park assist operation. Technician can disable the rear park assist for this concern.
• 10112606Nov 28, 2012Electrical system, Equipment. This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Technician should be advised that Vehicles with Regular Production Option Code (UPF or UWE) offer Bluetooth through the OnStar system.
• 10112603Nov 27, 2012Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a rattle, buzz, tick, or vibration type noise that appears to be coming from the center of the dash. Technician will adjust the transmission dipstick tube away from the front of cowl to provide additional clearance.
• 10112598Nov 21, 2012Equipment. This Preliminary Information communication provides information to the technician about vehicles that within 10 seconds after startup the radio will mute and phone icon displays on the radio for up to 15 seconds and then returns back to normal operation. Technician will need to use the OnStar system to contact a OnStar advisor and request a full unit configuration. Technician will need to contact General Motors…
• 10112597Nov 21, 2012Fuel system. This Preliminary Information communication provides information to the technician about vehicles that have a buzz or rattle type noise during light acceleration around 1200-2000 Revolutions per minute. Technician will need to reposition the fuel line and bracket down away from the floor pan.
• 10112581Nov 16, 2012Electrical system. This Preliminary Information communication provides information to the technician about vehicles that may have a no crank condition after the vehicle has had very low accessory battery voltage or a dead battery condition. Technician may find Diagnostic Trouble Code P0C76 set. Technician should be advised that anytime a battery charger or booster pack is connected to the 12 volt battery, the ignition key should…
• 10112580Nov 16, 2012Brakes. This Preliminary Information communication advises the technician that the Electronic Brake Control Module and Brake Pressure Modulator Valve for the 2-Mode Hybrid Utilities and Trucks will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact for further assistance.
• 10112578Nov 15, 2012Brakes, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a lack of brake assist after disconnecting the battery or after the 12 volts battery has run low on voltage. The Antilock Braking System Malfunction Indicator Lamp may also be on. Technician may find Diagnostic Trouble Code C121D sym 00 or C056D sym 00 set in the Electronic Brake Control Module.
• 10112577Nov 15, 2012Brakes, Equipment. This Preliminary Information communication provides information to the technician about Electronic Brake Control Module relearn procedure is required anytime the Electronic Brake Control Module is replaced or has been Service Programming System reprogrammed.
• 10112571Nov 14, 2012Fuel system. This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling…
• 10112561Nov 9, 2012Body and structure. This Preliminary Information communication provides information to the technician about vehicles that have water or dust from the openings under the bed rails near the stake pockets. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10112559Nov 8, 2012Equipment, Interior lighting. This Preliminary Information communication provides information to the technician about the roof beacon switch. The roof beacon switch will be left disconnected from the assembly plant. When a roof beacon light is added technician will need to plug the harness into the switch.
• 10112558Nov 8, 2012Electrical system. This Preliminary Information communication provides information to the technician with additional vehicle speed sensor diagnostic information. Technician may encounter multiple issues when diagnosing a Vehicle Speed Sensor. Technician will find it difficult to follow the speed signal path between the components. To test connect the Fluke meter leads between circuits 821 and 822 and set the meter to Alternating…
• 10112551Nov 6, 2012Brakes. This Preliminary Information communication provides information to the technician about vehicles that have an Antilock Braking System lamp followed by a Service Stability message in the Drivers Information Center. Technician my find Diagnostic Trouble Code C0710 set in the Electronic Brake Control Module. Technician may or may not find Diagnostic Trouble Code C0455. Technician will need to ensure the steering wheel…
• 10112547Nov 6, 2012Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a front passenger flooring wet, water sloshing noise, and/or mist from the dash vents. Technician will need to rotate the drain hose to clear the heat shield.
• 10112546Nov 6, 2012Brakes. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.

← All problems reported for the 2011 Chevrolet Silverado