Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Customer Interest
- Recommended Repairs
- Seals, Gaskets
- Superceded Bulletins
- All Technical Service Bulletins
- Interior - Eliminating Unwanted Odors in Vehicles
- Locks - Key Code Security Rules, Key Code Look Up
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- Wheels/Tires - Use Of Nitrogen Gas In Tires
- Tires - Information On Proper Tire Pressure
- Engine - THIS BULLETIN HAS BEEN CANCELED
- 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
- 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
- A/T - Fluid Oil Cooler Flow Test
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Lighting - Lamp Polycarbonate Lens Damage Prevention
- Restraints - Seat Belt Latching Issues/Warning Lights
- Body - Side Window Chipping Information
- Restraints - Driver/Passenger Seat Head Rest Information
- Engine - Use of 'Surface Conditioning Disks'
- Body - Application of Anti-Corrosion Materials
- A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
- A/C - Musty Odors Emitted From (HVAC) System
- A/T - Slight Vehicle Movement In Park At Start Up
- A/T - DEXRON(R)-VI Fluid Information
- Wheels/Tires - Refinishing Aluminum Wheels
- Lighting - Exterior Lamp Condensation and Replacement
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Steering/Suspension - Wheel Alignment Specifications
- Warranty - Claims Submission
- Warranty - Goodwrench Service Lifetime Service Guarantee
- Warranty - GM Dealer Parts Procurement
- Warranty - Notice of Delayed Start Process
- Warranty - Parts Warranty Special Claims B and C
- Warranty - Request for Wholesale Authorization
- VIN Plate - Replacement Policy and Procedure
- Warranty - GM Dealer Empowerment Program
- Labor - Revised Operation Z1241/Personal Property Damage
- Warranty - Repair/Replace Policies & Procedures
- Parts Expediting - Reimbursement Policy
- Warranty - Enhanced Sublet Repair Policy
- Warranty - Required Claim Submission Procedures
- Warranty - Repair and Claims Procedures
- Warranty - Corporate Parts Return Program Instructions
- Vehicle - Use of a Diagnostic Worksheet
- Vehicle - AC Delco Locator Service, Electronics Exchange
- Warranty - Diagnostic Claim Processing Revisions
- Electrical - Wiring Repair Temp Range Precaution
- Campaign - Product Bulletin Numbering System
- Vehicle - Vibration Diagnosis Using A Reed Tachometer
- Vehicle - Current Model Line Designators
- Parts - Expediting Procedures
- Glass - Adhesive Caulking Kit Revisions
- Warranty - Corporate Parts Return Program
- I/M 240 Repairs - Obtaining Technical Assistance
- Fuel System - Factors That Affect Economy/Mileage
- Brakes - Aftermarket Parking Brake
- Brake Fluid - Level And Filling Recommendations
- Instrument Cluster - Exchange Locator Program
- Electrical - Instrument Panel And General Wiring Repair
- A/C - CFC Reduction & Refrigerant Recovery Recycling
- A/C Refrigerant - Contamination
- A/C - Delayed Cooling After Engine Start Up
- Tools - A/C Leak Detector Maintenance Kit Availability
- A/C - Systems With R12 Or R134a Service Issue
- A/C - Retrofitting R-12 to R-134a
- A/C - Tool And Equipment Maintenance
- A/C - PureGuard 2 Operating Alert
- Heater - Lack of Warm Air
- A/T & M/T - AC Delco Remanufactured Transmissions
- ACDelco(R) Remanufactured Transmissions - Program Update
- Engine - Analysis of Internal Sludge
- Exhaust - Puff of Tailpipe Smoke on Startup
- Engine - Cold Start Exhaust Smoke
- Engines - ACDelco Remanufactured
- Engine - Surface Conditioning Discs Precautions
- Engine - AC Delco Remanufactured Engines
- Cooling System - Leaks
- Coolant - Fluid Loss
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- Charging System - Very Low/Completely Dead Battery
- Steering - System Bleed Procedures
- Fuel System - Intank Electric Pump Loosens
- Brakes - Front Pad Noise, Revised Tab Clinch Procedure
- Brake Pads - Front Brake Squeal
- A/C - Compressor Vibration, Moan Noise
- A/C - System Diagnostic Procedure
- A/C - Shaft Nut Removal from the HR6HE Compressor
- A/C Compressor Seal Washer - Reference Chart
- Kick Panel Fresh Air Vent - Water Leaks
- A/C System - Flushing Recommendation
- Suspension - Shock Absorber/Strut Replacement Guidlines
- Exhaust - Smoke on Engine Start Up
- Cooling System - Excessive Fan Noise
- Cooling - Radiator Repair/Replacement Guidelines
- Engine - Serpentine Belt, Worn Idler/Tensioner Pulley
- Light Duty Truck Wheels - Balancing Recommendations
- Wheels (Steel) - Damage Due to Improper Mounting
- Wheels - Sealing Leaking Cast Aluminum
- Aluminum Wheels - New Coated Wheel Weights
- Wheels - Finish Damage During Off Car Balancing
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Tires (Handling) - Vibration
- Tires (Front) - Irregular Wear
- Tires/Propshaft - Speed Reference Chart (Vibration)
- Tires - Speed Rated Information
- Frame - Cracks At Top Flange
- Door Locks - Binding or Sticking or Key Hard to Insert
- Tailgate Window - Closes Slowly/Sticking
- Seat (Rear) - Rattle/Chucking Noise
- Seat (Rear) - Squeaks and Rattles
- Doors - Cold Air and Wind Noise
- Drivetrain - Evaluating Driveline Vibration
- Differential Pinion Shaft Lock Screw - Service
- Differential - Additive Recommendations for G80 Axles
- Eaton Locking Differential - New Design
- A/T - New Transmission Fluid Filter and Filter Seal
- A/T - Updated Filter and Seal
- A/T TCC - MIL ON/False Code 32 Set Diagnostics
- A/T - Fluid Leak Near Front Pump (Bushing Walkout)
- Transmission - Leak from Speedometer Gear/Adaptor
- A/T Oil Cooler - Updated Flushing Procedure
- A/T - Cooler Replacement/Flushing
- MAP - Revised Check Chart for DTC's 33, 34, 63, 64
- A/T - Multiple Driveability Concerns
- Throttle Valve System - Diagnosis
- Slip Yoke/U-Joint - Replacement and Servicing
- Tools - Introduction Of The Fuel Injector Tester
- ECM - Revised Replacement Procedure
- Engine Controls - ECM May Contain Wrong PROM
- ECM/PCM - Damaged and/or Misdiagnosed
- ECM - Packard 32 Way Connector Identification
- ECM/PCM - Damage Prevention
- Oxygen Sensors - Silica Contamination
- Electrical - VSS Connector Mislabeled
- Front Wheel Driveshaft Boot - Damage Prevention
- Brakes - Front Calipers
- Brakes - Replacement Booster Push Rod Height Gage
- Tools - Revised Brake Booster Push Rod Height Gage
- Battery - Charging Precautions
- Battery - Parasitic Current Drain Diagnosis
- Battery - Diagnosis and Charging
- Battery - Parasitic Draw Test
- Warranty - New Vehicle/Replacement Battery
- Battery - Insulator Replacement & Caution
- CS-121/CS-130 Generators - Replacement
- Generator - Belt Tension Adjustment
- Engine - Generator Belt Tension
- Generator - Terminal Descriptions & Revised Wiring
- Engine - Rough/Surge/Misfire Code 43
- Engine Controls - Improved Driveability/False MIL Lamp
- Engine Controls - New PROM (Driveability/False Lights)
- Engine - Drivability/False Trouble Codes
- Fuel - Feed/Return Pipe Repair
- Fuel Pipe - Vibration Noise At Idle
- Fuel System - Cold Start Injector O-Ring Package
- Audio - Radio Frequency Interference (RFI) Diagnosis/ID
- Radio - Inoperative
- Audio - Poor AM or FM Radio Reception
- Seat Belts - Upfitter Responsibility
- Lap/Shoulder Belts - Dealer Installed Rear Kits
- IP Dimmer Control - Proper Setting
- Oil Filters - Enhanced Anti-Drainback Valves
- Brakes - Poor Rotor Finish/Hard Pedal Feel
- Brakes - Pulsations and Rotor Surface Refinish
- Brakes - Change In Brake Feel After Rotor Refinishing
- Brakes - Rotor & Hub Flange Cleaning Tool Revision
- Brakes - Pull While Braking
- A/C - Refrigerant Loss Prevention
- A/C - R12 Loss From Loose or Missing Access Fitting Caps
- Engine - Block Heater Leaks
- Engine - Miss, Hesitation, or Roughness
- Ignition System - Diagnosis Precautions
- Starter - Grinds/Clashes When Attempting to Crank
- Odometer/Speedometer - ACDelco Service Center Locations
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Brakes - Light Brake Drag While Driving
- Backup Lamps/Tailgate Window Release - Inoperative
- Cooling - New Style Hose Clamp
- Engine - Improved Head Gasket
- Cylinder Head Gasket - Improved Design
- Engine - Updated Head Gaskets
- Anti-Lock Brake - Aftermarket Products Usage Precaution
- Brakes (ABS) - 'False' or Dropping Pedal
- Front Stabilizer Bar Insulators - Loose/Missing
- Body - Sealer Tape For Collision Repairs
- Aftermarket Accessories - Installation Guidelines
- Recall 00V122000: Restraint System Inadequate
- State Emissions Testing Information
- Service Manual - Supplement
- Enhanced IM240 Program - Implementation Plan
- Emission - Enhanced Inspection Maintenance Programs
- I/M 240 Program - Equipment Purchase
- I/M Emissions Diagnostic Manual -Program
- Enhanced Emission I/M - Program Update
- Enhanced Emission Inspection Maintenance - Equipment
- EVAP System - Service of Connectors
- Engine Controls - Electrostatic Discharge Damage
- Electrical - Care of Metri-pack 150 Terminals
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- Tilt Steering Column - Noise or Squeaks
- Interior - Door Handle Air Leaks
- Tailgate Window - Chipping
- Hood - Sheet Metal Movement
- Child Restraint - Auxiliary Seat Belt
- Windshield - Two-Part Urethane Adhesive For Installation
- Wiper Blades - Chattering on Windshield
- Interior - Whistling Sound Around Opera Window
- Tailgate Window Operation
- Side Door Glass Lower Seal - Wind Noise
- Windshield Washer System - Drips/Dribbles
- Cooling System - Reconstituted Anti-Freeze Information
- Coolant - Information on Propylene Glycol Usage
- Warranty - Recycled Engine Coolant Policy
- Coolant - Used Anti-Freeze Policy
- Intake Manifold Gasket - Correct Installation
- Intake Manifold Gasket - Installation
- Console - Shake
- Brakes - Sensitivity Adjustment (Rear)
- A/T - 4L60 Steel 3-4 Clutch Plate Availability
- A/T - Burned Forward Gear, Overrun or 3-4 Clutches
- A/T - Direct Clutch Premature Wear
- A/T - Forward and Reverse Engagement Shift Feel
- A/T - New Case Assembly, Removal of Pressure Taps
- A/T - New Wave Plate Now Available
- A/T - Proper Location of the Forward Clutch Checkball
- A/T - Reverse Engagement Shift Feel
- A/T - THM 400 New Forward and Direct Clutch Assemblies
- A/T - Service Replacement Model Update
- A/T Fluid Level Indicator - Available
- A/T - Buzzing Noise at Idle
- M/T - Gear Oil Smell In Vehicles
- A/T - Harsh Park/Neutral to Reverse Engagement
- A/T - Service Replacement Assembly
- A/T - Slipping/No Reverse/Other Concerns After Service
- A/T - Core Return Product Feedback Form
- A/T - New Governor Driven Gear for No Upshift or Erratic
- A/T - New 2-4 Band Apply, Anchor Brackets, Lube Window
- A/T - THM 200/200C, 400, 700R4 Speedometer Leak
- A/T - 700-R4 & 400 Improved Governor Driven Gear
- A/T - 3L80/THM 400 Center Support Bolt
- A/T - Torque Converter Identification
- A/T - Harsh Reverse Engagements
- A/T - Engine Vacuum Testing
- A/T - How To Use A Pressure Gauge
- A/T - THM 400 Rear Band Adjustment Too Loose
- A/T - Rapid Converter Pump Bushing Wear
- A/T - Methods to Check for Restricted Exhaust
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - THM 400 Too Sensitive 3-2 Downshift
- A/T - No Upshift/Governor Contamination
- A/T - THM 400 No Reverse
- A/T - THM Steel Clutch Piston Inspection
- A/T - Sprag Rotation
- A/T - Checking Pressure Switches For Leaks
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - Choosing the Right ATF
- M/T - Pops out of 3rd Gear on Accel or Decel
- M/T - Neutral/Drive Gear Rattle
- M/T - New Leak Resistant Styrene Rubber Coated Gaskets
- Compact Disc Players - CD Changer Loading Procedures
- SIR - Operating Vehicle with Warning Light On
- Engine - Rough/Unstable/Incorrect Idle
- A/T - Updated ATF Fluid Color/Level Check Information
- A/T - Manual Update For ATF Level & Condition
- A/T - New Trans Fluid, Dexron IIE
- A/T - Proper Fluid Level Checking Procedure
- A/T - DEXRON III Fluid Introduction
- A/C - Moan Noise With Compressor Engaged
- Isolation Diodes - Replacement Information
- PROM/MEMCAL - Identification Marks
- Instrument Panel - Upper Surface Reflection
- Instrument Panel - Upper Surface Cleaning
- Instrument Panel - Paint Peeling Prevention
- Suspension - Chassis Lubrication Importance
- Engine - Oil Change Requirements For Fuel Fouled Oil
- CS Charging Systems - Quick Check
- Electrical - New Nickel Tape Shields Harnesses
- Fuels - Effect of Volatility on Driveability
- Fuel - How Fuel Economy Is Determined
- Engine Controls - Idle Speed/Minumum Idle Air Rate Specs
- Cruise Control - Incorrect Resume Operation
- Tires/Wheels - Wheel Weight Usage Precautions
- Drivetrain - Axle Offset, Appearance of Dog Tracking
- Power Window (Tailgate) - Slow Operation
- Seat - Rear Lap/Shoulder Belt Kits
- Body - Urethane Adhesives for Glass Applications
- Key Code - Information
- Key/Key Number/Security Chip - Replacement
- Paint - Codes/Cross References
- Paint - Acid Rain Damage to Base Coat/Clear Coat
- Paint - Color Coat Chips Off
- Paint - High Volume Low Pressure Paint Application
- Paint - Importance of Checking Clear Coat Thickness
- Paint - Supplier Identification/Assembly Plant
- Paint - Removal of Minor Imperfections
- Warranty - Rail Dust Removal & Chemical Spotting Labor
- Electrical - 32 Way Connector Improperly Marked
- Electrical Connectors - Service Procedure
- Door Handle (Interior) - Misaligned
- A/T Rear Case Bushing - Removal & Installation Procedure
- A/T - 4L60 Binding/Inoperative In Reverse
- A/T - New Control Valve Assembly Elimination of TCC Bore
- A/T - Proper Usage of Spacer Plate Gaskets, Overhaul Kit
- A/T - Evaluating Peened Spacer Plates
- A/T - 4L60/700-R4 Transmissions Stuck In First
- Locking Differential - Chattering on Turns
- Drivetrain - Recommended Axle Lubricant
- A/T - THM 700R4 New Second Servo Apply Pin
- A/T - New Servo Apply Pin
- A/T - 1-2 Accumulator Piston/Outer Spring Replacement
- Drive Axle - Premature Wear
- Recall 93V187000: Seat Recliner Defect
- Alignment - Front Axle Offset or Apparent Dog Tracking
- A/C - Use of Alternate Refrigerants In CFC 12
- Contaminated R12 Refrigerant - Testing & Handling
- A/C - Retrofitting R-12 Vehicles to R-134A
- A/T- THM 700-R4 New Output Shafts and Seal
- M/T Shift Lever - Rattle or Buzz In First or Second Gear
- Electrical - Speed Sensor Buffer Connector Labeled Wrong
- Brakes - Enhancing Rear Braking Performance
- Sunshade - Replacement Availability
- P/S - Reduced Assist When Cold
- Fuel - Reformulated/Oxygenated Gasolines
- Fuel - Use of Gasoline Containing 15 Percent MTBE
- Alignment - The Importance of Four Wheel Alignment
- Third Seat Back - Sagging
- A/T - New Latex-Coated Cellulose Oil Pan Gasket
- M/T - Updated Gaskets
- Body - Metal Panel Adhesive Bonding Information
- Cooling System - Coolant Recycling Information
- M/T - Hydraulic Clutch Bleeding Procedure Improvement
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Instruments - Reduced PRNDL Display Visibility
- Body - Polypropylene Energy Absorber Replacement
- Engine - Sealant Usage/Procedures
- Electrical - Aftermarket Fuse Warning
- Drivetrain - AWD/4WD System Driveline Characteristics
- Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
- Restraints - Usage of Used/Salvaged/Imitation Components
- Fuel System - E85 Fuel Usage Precaution
- A/T - No Movement in Drive or 3rd Gear
- Engine/Fuel System - Oil/Fuel Additive Information
- Cooling System, A/C - Aluminum Heater Cores/Radiators
- Wheels/Tires - Upsized Wheel/Tire Characteristics
- Audio System - Refurbishing Radio Faceplates/Knobs
- Body - Hem Flange Rust Repair Information
- Body - Marks/Stains on Windshield When Wet
- Wheels/Tires - Chrome/Steel Valve Stem Cap Precautions
- Engine - Noise/Damage Oil Filter Application Importance
- Engine - Drive Belt Misalignment Diagnostics
- Body - Maintaining Exterior Weatherstrip Appearance
- 06-08-111-004B - BULLETIN CANCELLATION NOTIFICATION
- Body - Stain/Film On Windshield Glass Perimeter
- Wheels/Tires - Accessory Wheel And Tire Information
- Wheels/Tires - Replacement Wheel Weight Information
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Tires/Wheels - Tire Puncture Repair Procedures
- Lighting - Headlamp Warranty Replacement Guideline
- Interior - Proper Use of Floor Mats
- Wheels - Changing Procedures/Precautions
- Body - Squeeze Type Resistance Spot Welding/Equipment
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Restraints - Extender Availability For Seat Belt
- Interior - Seat Cover Wrinkle/Crease/Burn Info
- A/T - Water Or Coolant Contamination Information
- Body - Drilling High Strength Steel Using CryoCobalt(R)
- Body - Vehicle Glass Distortion Information
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Body Interior - Wind Noise Into the Cab Area
- 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
- Wheels - Chromed Aluminum Wheel Staining/Pitting/Corrosion
- Body - Paint-less Dent Repair Process
- Wipers/Washers - Windshield Wiper Performance Information
- Electrical - Ground Repair Information
- Interior - Cleaning Instrument Panel, Interior Trim