October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Repair and Diagnosis: Technical Service Bulletins Expand All (for easy ctrl-f) Collapse All How to Find Technical Service Bulletins by Category/Symptom Recalls Customer Interest Recommended Repairs Superceded Bulletins All Technical Service Bulletins Wheels/Tires - Proper Wheel Installation/Wheel Torque Technique Electrical - Aftermarket Devices May Interfere With OnStar(R) Interior - Eliminating Unwanted Odors in Vehicles Engine Controls - MIL ON, DTC P2135, Reduced Engine Power Locks - Key Code Security Rules, Key Code Look Up Engine Controls - MIL ON/DTC P2135 Set Vehicle - Engine And Sub Systems Flushing Info. (CANADA) Vehicle - Engine And Sub-Systems Flushing Recommendations Wheels/Tires - Use Of Nitrogen Gas In Tires Instruments - IPC Odometer Programming Method Tires - Information On Proper Tire Pressure Engine - THIS BULLETIN HAS BEEN CANCELED A/T - Normal Maintenance or Warranty on 4T40, 4T45, 4T65, 4L60 Campaign - Rear Axle Grinding Noise/Vibration Fuel System - TOP TIER Detergent Gasoline Information (Canada) Fuel System - TOP TIER Detergent Gasoline Tires/Wheels - OE Tire Shake/Vibration Information Suspension - Shock Absorber/Strut Fluid Leak Information M/T - Operating Characteristics Information Brakes - Resurfacing Park Brake Portion of Rear Brake Rotor Tires - Slight/Mild Edge Feathering Information Body - Hem Flange Sealer For Corrosion Protection Engine - Intake Manifold Inspection/Replacement Body - Metal Body Panel Corrosion Protection Fuel System - GM Fuel System Treatment PLUS(R) Info. Body - Broken Rear Window Defogger Grid Detection Fuel System - Fuel Injector Maintenance Cleaning Audio - Inadvertent Steering Wheel Button Activation Audio System - Noise When Using Portable Playback Unit Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim Steering - Power Steering Leaking Fluid A/T - Fluid Oil Cooler Flow Test OnStar(R) - Language Change Information (U.S. and Canada Only) Power Steering - Fluid Leaks Due to Extreme Low Temps Restraints - Passenger Presence System Information Lighting - Lamp Polycarbonate Lens Damage Prevention Restraints - Seat Belt Latching Issues/Warning Lights Restraints - Air Bag Lamp ON/Multiple DTCs A/T Controls - Snapshot Data With Tech2(R) Information Body - Side Window Chipping Information Restraints - Driver/Passenger Seat Head Rest Information Tires/Wheels - Tire Slowly Goes Flat/Warning Light ON Steering - Rattle Noise Coming From Front Of Vehicle Restraint System - Normal Safety Belt Locking Conditions Engine - Use of 'Surface Conditioning Disks' Navigation - Report Missing/Inaccurate Nav. Map Info A/T - Shift Stabilization/Tow Haul Mode Features Body - Application of Anti-Corrosion Materials A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise Campaign - Propshaft Bolt Inspection Engine - Oil Leak At Oil Cooler Hose/Pipe Assembly Body Controls - Body Control Module (BCM) Grounds A/C - Musty Odors Emitted From (HVAC) System Suspension - Rear Leaf Spring Slap Or Clunk Noise Engine - MIL ON P0116/P1400 Set In Very Cold Temps Navigation Radio - Problems After Radio/Battery Service A/T - Slight Vehicle Movement In Park At Start Up Recall - Rear Axle Cross Pin Fracture Tire Pressure Monitor - TPM System Message/Service Tips Door - RH Swing-Out Door Contacting Front Passenger Door Drivetrain - Leak From Transmission/Propeller Shaft Suspension - Rear Leaf Spring Noise On Acceleration Electrical - Installation Of Aftermarket Accessories Tires/Wheels - Rattle Noise from Wheel Or Hub Cap A/C - Window Defroster Contact/Tab Repair Information Steering - Rubbing/Groaning Noise On Low Speed Turns Engine, A/T - Identification Information Wheels/Tires - Refinishing Aluminum Wheels Lighting - Exterior Lamp Condensation and Replacement Fuel - GM's Position On Use Of E 15, 2007 Newer Vehicles Electrical - MIL ON/DTC's Set By Various Control Modules OnStar(R) - Number Incorrect/Incorrectly Assigned Steering/Suspension - Wheel Alignment Specifications Vehicle - 2011 Model Year VIN Code changes Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels Tires/Wheels - Tire Puncture Repair Procedures Interior - Proper Use of Floor Mats Tire Pressure Monitor - TPM System Overview TPMS System - Service And Re-Learning Sensor IDs Body - Squeeze Type Resistance Spot Welding/Equipment Electrical - Intermittent MIL/DTC P2138/Reduced Power Restraints - Extender Availability For Seat Belt Steering/Suspension - Pitman Arm Shaft Seal Service Kit Interior - Seat Cover Wrinkle/Crease/Burn Info A/T - Water Or Coolant Contamination Information Body - Drilling High Strength Steel Using CryoCobalt(R) Body - Driver/Passenger Windshield Pillar Moulding Loose Body - Vehicle Glass Distortion Information Fuel System - TOP TIER Detergent Gasoline (Canada) Tires/Wheels - Information on Tire Radial Force Variation (RFV) Engine - GM Dexos 1(R) And 2(R) Oil Specifications Engine - GM dexos 1(R) and dexos 2(R) Oil Specifications/Info. Body - Pre-Painting/Cleaning Process For TPO Plastic Fascias Drivetrain - Information on Driveline Clunk Noise Steering - Lack of Low Speed Steering Assist Engine - New Service Cam Bearings Wheels - Chromed Aluminum Wheel Staining/Pitting/Corrosion Engine Controls - Non-GM Engine/Transmission Calibration ID Navigation System - DVD Navigation Update Program OnStar(R) - Gen 9 Module Inop, Bluetooth Inop, Battery Discharg Body - Paint-less Dent Repair Process Electrical - Power Outlet and Trailer Lighting Fuse Replacement Electrical - Aftermarket Interface Devices Causing Issues Wipers/Washers - Windshield Wiper Performance Information Electrical - Ground Repair Information Interior - Cleaning Instrument Panel, Interior Trim