2008 GMC C Series Technical Service Bulletins

528 technical service bulletins (TSBs) are on record for the 2008 GMC C Series. 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.

• 10135238Oct 19, 2016Equipment. This Bulletin has been Revised to add the 2017 Colorado, Cruze, Canyon, Chevrolet & GMC Light/Medium Duty Trucks. Please discard Corporate Bulletin Number 03-06-04-071I
• 10135239Oct 13, 2016Equipment. This warranty administration bulletin provide policy information on required operating procedures.
• 10135241Oct 9, 2016Fuel system. This informational bulletin provides information on the top tier fuels that are recommended in GM vehicles.
• 10135244Oct 5, 2016Equipment. This Informational Bulletin provides information for customers to report Missing or Inaccurate navigation Radio Map Disc information.
• 10118916Sep 30, 2016Equipment. This warranty administration bulletin provide policy information on warranty and policy exchange program for electronic products for U.S. and Canada dealers only.
• 10118913Sep 30, 2016Equipment. This warranty administration bulletin provide policy information for courtesy transportation and roadside assistance programs.
• 10118912Sep 30, 2016Equipment. This informational bulletin provides information on return or reimbursement of customer owned CDs, DVDs or Navigation Discs .
• 10118919Sep 27, 2016Equipment. This warranty administration bulletin provides information on Goodwill Tools, Customer Enthusiasm, and Policy Guidelines.
• 10118918Sep 27, 2016Equipment. This warranty nonadministrative bulletin provides information on the proper use of the labor op 0600014.
• 10118908Sep 19, 2016Equipment. This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).
• 10118911Sep 1, 2016Fuel system. This informational Bulletin provides Do's and Don'ts for maximizing gasoline engine fuel economy, other various tips and a list of websites for additional information.
• 10083907Aug 19, 2016Fuel system, Other or unknown. An investigation of returned number 1 and 2 egt sensors to the warranty parts center has identified a common occurrence of sensors being replaced with “no trouble found” (ntf). In order to better service the customer and stop the unnecessary replacement of these sensors, isuzu has provided the following inspection information to aid the technician in properly diagnosing egt sensors 1 and 2.
• 10126063Jul 12, 2016Engine. This informational bulletin provides information on intake manifold inspection/replacement after severe internal engine damage.
• 10113973Mar 31, 2016Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will check Global Warranty Management system for customer satisfaction program 15086 status. If the status of the customer satisfaction program 15086 was not completed follow the steps to get the Telematics…
• 10112831Mar 30, 2016Wheels. This informational bulletin provides information on chemical staining, pitting, and corrosion on wheels and the proper cleaners to use to fix the conditions due to multiple causes.
• 10112791Mar 14, 2016Equipment. This warranty administration bulletin provides information on Courtesy Transportation and Roadside Assistance Programs
• 10113921Mar 8, 2016Equipment. This Preliminary Information communication advises the technician after the OnStar Canada upgrade the OnStar Vehicle Diagnostic Email report is inoperative. Please communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10113914Mar 4, 2016Engine cooling. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire.
• 10112770Mar 2, 2016Electrical system. This informational bulletin provides information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability
• 10112764Mar 1, 2016Equipment. This warranty informational bulletin provides a list of all the required operating procedures and explains them out to what is acceptable and not.
• 10116914Feb 23, 2016Wheels, Tires. This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel)
• 10114431Feb 23, 2016Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
• 10116891Feb 12, 2016Equipment. This informational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S. Only)
• 10116890Feb 12, 2016Exterior lighting. This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not
• 10116874Feb 8, 2016Exterior lighting. This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
• 10246963Jan 13, 2016Equipment. Changing Turn-By-Turn Voice Response To Metric Or English Units
• 10246929Jan 13, 2016Transmission and drivetrain. OnStar Will Not Power Up.
• 10112264Jan 7, 2016Body and structure. This informational bulletin provides information on removing paint stains on the under side of protective shipping film
• 10114980Dec 18, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicles that when dialing certain numbers using OnStar Hands-free Calling, the audio is distorted or has poor quality after performing the OnStar Canada Upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10114977Dec 18, 2015Equipment. This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
• 10114954Dec 9, 2015Fuel system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442…
• 10201115Dec 1, 2015Equipment, Other or unknown. OnStar Voice Fallback Number Update
• 10201098Dec 1, 2015Transmission and drivetrain, Engine. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10190512Dec 1, 2015Electrical system, Equipment. OnStar® Voice Fallback Number Update Some customers may have received a letter from OnStar® stating that "We recently tried to provide a software update to the OnStar® hardware in your vehicle. However, your system could not be updated remotely.
• 10190503Dec 1, 2015Engine, Transmission and drivetrain. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10137258Nov 30, 2015Equipment. This informational bulletin provides information for technicians on the reuse of fasteners and the proper reading of torque specifications.
• 10115143Nov 30, 2015Engine cooling. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
• 10115128Nov 23, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicle's odometer appears to be inaccurate relative to a known distance traveled. Technician should obtain a hand-held GPS unit to test the odometer. If a hand held GPS unit is not available, the only other option is to verify the miles traveled using a surveyor's wheel or a dynamometer.
• 10126393Oct 26, 2015Equipment. This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada).
• 10126385Oct 22, 2015Electrical system, Equipment. This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels.
• 10114903Oct 16, 2015Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
• 10126375Oct 14, 2015Equipment, Electrical system. This informational bulletin provides information to dealership personnel on the use of non-GM approved battery chargers and booster packs.
• 10114894Oct 14, 2015Suspension, Body and structure. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be…
• 10126370Oct 13, 2015Equipment, Transmission and drivetrain. This informational bulletin provides information to dealership personnel on proper engine and automatic transmission/transaxle identification.
• 10126369Oct 13, 2015Electrical system. This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but not limited to, a slow or no crank condition that may be caused by a discharged battery.
• 10126350Oct 5, 2015Equipment. This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada).
• 10127240Sep 29, 2015Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Turn By Turn directions may no longer be displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10127238Sep 29, 2015Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the incoming caller ID may no longer be available or displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10127230Sep 28, 2015Fuel system. This Preliminary Information communication provides information to the technician to help determine if the vehicle is equipped with factory or aftermarket Compressed Natural Gas, Liquefied Petroleum Gas, or Bi-Fuel Systems. Technician will check for the Vehicle Emission Control Information Label.
• 10113796Aug 6, 2015Equipment. This informational bulletin provides information on the proper use of GM floor mats.

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