Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Customer Interest
- Interior - Eliminating Unwanted Odors in Vehicles
- Body - Broken Rear Window Defogger Grid Detection
- Audio System - Noise When Using Portable Playback Unit
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Restraints - Seat Belt Latching Issues/Warning Lights
- A/C - Musty Odors Emitted From (HVAC) System
- Electrical - MIL ON/DTC's Set By Various Control Modules
- A/C - Delayed Cooling After Engine Start Up
- Steering - Identifying Torque Steer
- Power Steering - Reduced Assist at Low Temperatures
- Engine - Deceleration Stall or Long Crank on Start Up
- Engine Controls - Diagnostics For Internally Shorted IAC
- P/S - Pump Noise/Increased Steering Effort
- Fuel Pump - Noise Audible In Passenger Compartment
- Fuel - Pressure Loss, Restricted Pump Strainer/Filter
- Fuel - Loss of Power or Hesitation When Turning
- Locks - Ignition OFF, Automatic Door Locks Actuate
- A/C Compressor - Repetitive Inoperative
- A/C System - Odors
- P/S - Temporary Reduction of Assist When Cold
- Engine - Belt Chirp or Squeal
- Exhaust Pipe - Knocking Noise
- Wheels, Aluminum - Scratch Removal
- Wheels - Wire Wheel Cover Noise
- Door Lock Cylinder - Binds, Sticks
- Seats - Manual Recliner Movement
- Astro Roof - Wind Noise (Buffeting)
- Headliner - Loose At Rear
- A/T Pan Bolt - Leaks
- A/T - TCC Engages In 2nd Gear
- A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
- Overview
- Very Harsh Part Throttle 3-2 Shift At 20-40 MPH:
- Harsh 3-2 and/or 4-2 Shifts:
- Intermittent Harsh Part Throttle 3-2 Shift:
- Harsh 3-2 Shift **High Altitude Only**
- Harsh 3-2 Shift **Low Altitude* Only**:
- Harsh 3-2 Shift Maneuver At 17-20 MPH:
- Harsh 3-2 Coastdown Bump 3.8L or 4.5L At 15-22 MPH:
- Harsh Upshifts - High Altitude Only:
- A/T - Harsh Gear Engagement
- A/T - Intermittent Delayed Upshifts
- ECM/PCM - Damaged or Mis-Diagnosed
- Engine Control - Intermittent Code 44 or 48
- Hub Assembly Seal - Squeak/Squawk Noise
- Brake - New Service Lining Reduces Squeal
- Brakes - Shudder or Pedal Pulsation
- ABS Pump Motor - Failure
- Windows - Power Motors Intermittent or Inoperative
- Cruise Control - Intermittent Drop-Out/Fail to Set
- Audio - Poor AM or FM Radio Reception, Antenna Coaxial
- Engine - Miss, Hesitation, or Roughness
- Engine - False High Oil Pressure Gage Readings
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Cooling Fan - Runs Battery Dead Diagnosis
- Cooling Fan - Runs Continuously
- Brakes - Intermittent Pull Under Hard Braking
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- Emissions - Poor Driveability Due to PCV Blow Out
- Exhaust System Splash Shield - Knocking Noise
- Safety Belt (Front) - Inoperable Comfort Lock
- Door - Front Arm Rest Pad Loose/Off at Front
- Brakes - Pedal Squeak
- Brakes - Low Brake Pedal/Excessive Brake Pedal Travel
- 89T1533E Adds Information to TSB 88T1303E
- A/T - Double Bump, Harsh Engagement, Shudder P to N or R
- A/T - Delayed Neutral to Drive Engagement
- A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
- A/T - Intermittent Loss of Drive
- A/T - Evidence of Paint Flakes In Fluid
- SIR - Operating Vehicle with Warning Light On
- A/T - Black Paint Flakes Found in Fluid
- Instrument Panel - Upper Surface Reflection
- Engines (Port Fuel Injected) - Recommended Fuels
- Radio - Power Antenna Will Not Retract
- A/T - Harsh 3-2 Gear Detent Downshift
- Exhaust - Knocking or Banging From Underside of Vehicle
- A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
- A/T - 4T60 No Reverse/Slipping or Band Distress
- A/T - No 3RD Gear, New Thrust Bearing
- P/S - Reduced Assist When Cold
- Brakes, Front - Pulsation Diagnosis, Correction, Repair
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- Body - Marks/Stains on Windshield When Wet
- Body - Stain/Film On Windshield Glass Perimeter
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Recommended Repairs
- Seals, Gaskets
- Superceded Bulletins
- 10-00-89-010A - 10/19/12
- 12-06-01-008 - 09/01/12
- 04-06-01-029F - 09/01/12
- 05-06-04-022H - 07/18/12
- 04-06-04-047J - 07/18/12
- 00-03-10-006G - 07/17/12
- 03-03-10-007F - 07/12/12
- 01-08-51-003A - 11/01/2010
- 01-08-51-003 - 01/01/2010
- 08-07-30-035A - 01/01/2010
- 05-06-04-022F - 10/01/10
- 06-08-64-001 - 12/01/06
- 06-08-64-001A - 10/01/09
- 05-03-08-002 - 12/01/05
- 05-03-08-002A - 10/19/08
- 05-03-08-002B - 10/01/09
- 06-00-89-051B - 12/01/08
- 04-08-50-006 - 06/01/04
- 04-08-50-006A - 12/01/07
- 00-06-01-012A - 02/08/05
- 933E106 - 07/01/93
- 93966C - 10/01/93
- 9310100 - 06/01/95
- 93-6-107 - 07/01/97
- 926109 - 08/01/94
- 926102 - 10/01/95
- 913117 - 03/01/94
- 90T1286F - 06/01/90
- 902160 - 12/01/94
- 89T3610 - 02/01/89
- 89T327A - 01/01/89
- 88T696A - 05/01/88
- 88T1096F - 10/01/88
- 88I237A - 08/01/88
- 88-T-71 - 05/01/88
- 88-T-64 - 05/01/88
- 73-90-23 - 01/01/00
- 73-90-12 - 01/01/00
- 631208 - 04/01/97
- 431018 - 01/05/94
- 40-05-01C - 10/01/99
- 315004R - 01/01/94
- 310503B - 01/12/96
- 310503 - 01/01/95
- 23-62-03 - 07/01/97
- 12-92-43 - 07/01/97
- 106602 - 08/01/94
- 039366 - 10/01/93
- Warranty - Expediting parts
- Warranty - Parts Returning Program
- Overview
- Requests, Reminders and Debits
- Part Preparation For Shipping
- Warranty Core Parts
- Hazardous Material
- Tires
- Campaign Parts and Special Parts Return Request
- Repair Order Only Requests
- Forms WPC006 and WPC005
- Return and Method of Reimbursement
- Dealer Feedback
- Part Return Request Example
- Request For Part Return/Repair Order Only/Remind. Example
- Request For Repair Order Only Example
- Reminders Only Example
- Warranty - Expediting Parts
- Parts - Expediting Information
- Wipers/Washers - Windshield Wiper Maintenance/Cleaning
- Wipers - Performance/Cleaning Instructions/Maintenance
- Windshield Wipers - Performance/Cleaning and Maintenance
- Glass/Body - Windshield Wiper Performance
- Body - Distortion On Outer Glass Surfaces
- Lighting - Headlamp Polycarbonate Lens Damage Prevention
- Lighting - Lamp Polycarbonate Lens Damage Prevention
- Odometer/Speedometer - Repair Facilities
- Body - Paint-Less Dent Repair Recommendations
- Body - Application of Anti-Corrosion Materials
- Body - Metal Body Panel Corrosion Protection
- Body - Hem Flange Sealer For Corrosion Protection
- Body - Metal Body Panel Corrosion Protection
- Body - Metal Panel Corrosion Protection
- Body - Hem Flange Repair
- Body - Paint-less Dent Repair Process
- Weatherstrips - Use of Silicone Grease for Maintenance
- Interior - Seat Cover Wrinkle/Crease/Burn Info
- Interior - Seat Cover Wrinkle/Crease/Crack/Burn Info.
- Paint - I.D. & Repair of Colorcoat Delamination
- Locks - Key Code Security Rules And Information
- Locks - Key Code Securtiy Rules And Information
- Body - Exterior Emblem Discoloration/Blistering/Peeling
- Body - Vehicle Glass Distortion Information
- Body - Side Window Chipping Information
- Body - Use of Silicone for Weatherstrip Maintenance
- Body - TPO Fascia Cleaning Prior to Painting
- Audio System - Noise When Using Portable Playback Unit
- Audio System -Noise When Using Portable Playback Unit
- Policy - Procedure to Handle Customer Radio Concerns
- Audio - Radio Frequency Interference (RFI) Diagnosis
- Radio Phone/Mobile Radio - Install & Troubleshooting
- Cellular Phones - Operating Characteristics
- Restraints - Availability of Seat Belt Extenders
- Restraints - Seat Belt Warning Lamp On/Buckling Issues
- Restraints - Seat Belt Warning Lamp On/Buckling Issues
- Restraints - Seat Belt Operating Characteristic
- Seat Belts - Seat Belt Extender Availability
- Restraints - Driver/Passenger Seat Head Rest Information
- Restraints - Driver/Passenger Seat Head Rest Information
- Restraints - Passenger Presence System Information
- Airbags - Disconnect Procedures
- A/C - Broken Rear Window Defogger Grid Detection
- Interior - Elimination Of Unwanted Odors
- Interior - Elimination Of Unwanted Odors
- Interior, A/C - Vehicle Odor Elimination
- Tools - A/C Leak Detector Kit Maintenance
- Interior - Eliminating Unwanted Odors
- Suspension - Shock Absorber/Strut Fluid Leak Information
- Suspension - Shock Absorber/Strut Leakage Information
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Audio System - Portable Audio Equipment Noise
- Locks - KeyCode Security Rules and Information
- Locks - Key Code Security Rules and Information
- Locks - Key Code Security Rules and Information (CANADA)
- Brakes - Intermittent Pull With Hard Braking
- Drivetrain - Clunk Noise Shifting From PARK Into Gear
- A/T - DEXRON(R)-VI Fluid Information
- Drivetrain - Clunk Noise Shifting From PARK Into Gear
- Drivetrain - Driveline Clunk Information
- Manual Transmission - M/T Operating Characteristics
- M/T - Operating Characteristics
- M/T - Operating Characteristics of Manual Transmissions
- M/T - Normal Operating Characteristics
- Drivetrain - Axle Lubricant Recommended
- A/T - Clunk When Shifting From PARK/DRIVE/REVERSE
- Automatic Transmission - Service Procedure Change
- A/T - Service Procedure
- A/T - Harsh Downshift Diagnosis
- A/T - Fluid Oil Cooler Flush
- A/T - Fluid Oil Cooler Flush
- Automatic Transmission - Fluid Cooler Flushing
- A/T - Oil Cooler Flushing and Flow Check Procedures
- A/T - Oil Cooler Flushing/Flow Check
- A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
- Fuel System 'TOP TIER' Detergent Gasoline Information
- Fuel System - GM Fuel System Treatment PLUS(R) Info.
- Fuel System - Maintenance Cleaning of Fuel Injectors
- Fuel System - 'TOP TIER' Detergent Gasoline Information
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Fuel System - TOP TIER Gasoline Usage (Canada)
- Fuel System - TOP TIER Detergent Gasoline Usage
- Fuel System - TOP TIER Detergent Gasoline
- Fuel System - GM Fuel System Treatment Plus(R)
- Fuel System - TOP TIER Gasoline Information (Canada)
- Fuel System - TOP TIER Gasoline Information
- Fuel System - E85 Fuel Usage Information
- Fuel System - Fuel System Treatment PLUS(R)
- Engine Controls - Aftermarket Accessory Usage
- Engine Controls - Aftermarket Accessory Usage
- Engine Controls - Aftermarket Accessory Usage
- Cooling System - Approved Coolant Recycling Processes
- A/C - Servicing of Aluminum Heater Cores/Radiators
- A/C - Aluminum Heater Core and/or Radiator Replacements
- Vehicle - Engine Crankcase and Subsystems Flushing Info.
- Vehicle - Engine Crankcase and Subsystems Flushing Info.
- Vehicle - Engine/Subsystem Flushing Recommendations
- Engine - Use of 'Surface Conditioning Disks'
- Engine - Crankcase Flushing Information
- Engine - Sealant Usage/procedures
- Engine - Surface Conditioning Disc Usage Prohibition
- Engine - Sealant Usage Recommendations
- Gasket Surfaces - Use of Surface Conditioning Discs
- Oil - Normal Oil Consumption
- Engine - Intake Manifold Inspection/Replacement
- Intake Manifold - Inspect/Replace After Engine Damage
- Engine/Fuel - Additive Information
- Manual Transmission - Operating Characteristics
- Fuel System - Fuel Injector Maintenance Cleaning
- Wheels, Cast Aluminum - Slow Leak
- Chrome Wheels - Chemical Staining Precautions
- Aluminum Wheel - Refinishing Recommendations
- Chrome Wheels - Chemical Staining
- Aluminum Wheels - Low Tire Pressure Condition
- Wheels/Tires - Slow Leaks From Aluminum Wheels
- Wheels - Aluminum Wheel Refinishing Recommendations
- Tires - Puncture Repair Procedure
- A/T - Fluid Cooler Flushing
- Coolant - Current Information on Propylene Glycol Blend
- Coolant - Use of Propylene Glycol Based Blend
- Engine Coolant - Information
- Cooling System - DEX-COOL(R) Coolant Usage Information
- Cooling System - DEX-COOL(R) Coolant Information
- A/T - DEXRON III(R) (H-Revision) Specification Upgrade
- A/T - DEXRON(R) VI Fluid Availability
- Tires/Wheels - Low Tire Pressure With Aluminum Wheels
- Tires/Wheels - Nitrogen Gas Usage for Filling Tires
- Engine - Unnecessary Flushing Services
- Wheels Chrome Wheel Chemical Staining/Pitting/Corrosion
- Wheels - Changing Procedures/Precautions
- Wheels - Pitting/Brake Dust On Chrome Wheels
- Tires - Original Equipment Tire Characteristics
- Tires - Inflation Pressure Information
- Tires - Tread Puncture Repair Procedures
- Tires - Radial Force Variation (RFV) Information
- Wheel Alignment - Recommendations/Requirements
- Tires - Proper Tire Pressure Information
- Tires - Proper Inflation Pressure Information
- A/T - DEXRON-VI(R) Fluid Availability
- Wheels/Tires - 'Upsized' Wheel And Tire Information
- Tires - Proper Inflation Pressure Info.
- Engine - Noise Damage Caused By The Oil Filter
- Engine - Internal Noise/Damage After Oil Filter Change
- Tires - Information on Proper Tire Pressure
- Wheel/Tire - Upsized Wheel/Tire Performance Info.
- Tires/Wheels - Vibration/Balance/Shake/Flat Spotting
- Tires/Wheels - Tire Inflation Pressure Information
- Tires - (RFV) Radial Force Variation Information
- Tires - Tire Puncture Repair Procedures
- Tires - Nitrogen Gas Usage
- Wheels/Tires - Changing Tire and Wheel Assemblies
- Wheels/Tires -Low Tire Pressure
- Engine - Accessory Drive Belt Noise Diagnostics/Tool
- Wheels/Tires - Accessory Wheel/Tire Mounting/Balancing
- Wheels/Tires - Chrome or Chrome Plated Steel Valve Caps
- Alignment - Specifications/Requirements/Recommendations
- Tires - Radial Force Variation (RFV) Info.
- Tire - Use Of Nitrogen Gas In Tires
- Tires - Correct Inflation Pressure Information
- Wheels/Tires - Original Equipment Characteristics
- Wheels/Tires - Tire Puncture Repair Procedures
- Wheels/Tires - Low Tire Pressure
- Wheels/Tires - OE Tire/Wheel Characteristics
- Wheels/Tires - Low Tire Pressure/Aluminum Wheels Leak
- Wheel - Refinishing Aluminum Wheels
- Tires - Tire Radial Force Variation (RFV)
- Wheels - Chrome Wheel Staining/Pitting/Corrosion
- Wheels/Tires - Use of Nitrogen Gas in Tires
- Wheels/Tires - Tire Radial Force Variation (RFV)
- Engine - GM Dexos 1(R) and Dexos 2(R) Oil Specifications
- Wheels - Chrome Wheel Staining/Pitting/Corrosion
- Tires/Wheels - Information on Tire Radial Force Variation (RFV)
- 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
- Warranty Inquiry System
- 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
- Overview
- Certified Dealer Service Management empower./repair approval
- Customer Satisfaction
- Dealer Repair Options
- Coverage Guidelines/GM Certified Used Vehicle Coverage
- Warranty Coverage - Cause of Failure
- GM Certified Used Vehicle Warranty Verification
- Warranty Administration
- Courtesy Transportation
- Campaigns
- Dealer Reimbursement Guidelines (Warranty Claims Submission)
- Customer Reimbursements
- Warranty Repairs on Used Vehicles In Inventory
- Reconditioning
- Inspection and Warranty Repairs
- Buy-Back Vehicles
- Diesel Engine Repairs/Deductible
- Corrosion Protection and Emissions Warranties
- U.S. Touring Owner Service
- Warranty - Claim Processing
- Warranty - Claims Processing
- Warranty - Corporate Parts Return Program Instructions
- Warranty Information Network System - Stage 2
- Vehicle - Use of a Diagnostic Worksheet
- GM Campaign Identification Label
- Vehicle - AC Delco Locator Service, Electronics Exchange
- Campaign - Product Bulletin Numbering System
- Parts - Expediting Procedures
- Glass - Adhesive Caulking Kit Revisions
- Warranty - Corporate Parts Return Program
- I/M 240 Repairs - Obtaining Technical Assistance
- Brake Fluid - Level And Filling Recommendations
- Instrument - Digital Cluster Warranty Repair
- Instruments - Incorrect Fuse Installation Instructions
- Electrical - Instrument Panel And General Wiring Repair
- A/C - Leak Test
- A/C - CFC Reduction and 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
- Steering - Identifying Torque Steer
- Campaign - Temporary Reduction In P/S Assist
- Power Steering - Reduced Assist at Low Temperatures
- A/T & M/T - AC Delco Remanufactured Transmissions
- ACDelco(R) Remanufactured Transmissions - Program Update
- Engines - ACDelco Remanufactured
- Engine - Surface Conditioning Discs Precautions
- Engine - AC Delco Remanufactured Engines
- Engine - Deceleration Stall or Long Crank on Start Up
- Engine Controls - Diagnostics For Internally Shorted IAC
- Steering - System Bleed Procedures
- P/S - Pump Noise/Increased Steering Effort
- Fuel Pump - Noise Audible In Passenger Compartment
- Fuel - Pressure Loss, Restricted Pump Strainer/Filter
- Fuel - Loss of Power or Hesitation When Turning
- Fuel Pumps, Pulsators ,Senders - Replacement Parts
- Locks - Ignition OFF, Automatic Door Locks Actuate
- Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
- Brakes - Squeal, New Pads/Lining for ABS Only
- Instrument - Digital Instrument Cluster Warranty Repair
- A/C Compressor Oval O-Ring Seal - Revised Design
- A/C Compressor - Repetitive Inoperative
- A/C - Repetitive Compressor Failures
- A/C Compressor Seal Washer - Reference Chart
- A/C System - Odors
- Suspension - Shock Absorber/Strut Replacement Guidlines
- P/S - Temporary Reduction of Assist When Cold
- P/S - Rack & Pinion Gear Parts/Service Information
- P/S - Updated Kit for Rack and Pinions
- Engine - Belt Chirp or Squeal
- Piston Specifications - Revised
- Cooling - Radiator Repair/Replacement Guidelines
- Balance Shaft - Special Tools and Procedure Revision
- Exhaust Pipe - Knocking Noise
- Wheels (Aluminum) - Balance Weight Usage
- Wheels - Sealing Leaking Cast Aluminum
- Aluminum Wheels - Coated Wheel Weights
- Wheels, Aluminum - Scratch Removal
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Wheels - Wire Wheel Cover Noise
- Tires - Rotation and Warranty Coverage
- Tires - Speed Rated Information
- Door Lock Cylinder - Binds, Sticks
- Seats - Manual Recliner Movement
- Seats - Manual Update Lumbar Support Diagnosis
- Leather Seat Covers - Cleaning Procedure
- Roof - Vinyl Repair Information
- Scalp Moldings W/Windnoise Closeout - Instructions
- Astro Roof - Wind Noise (Buffeting)
- Sunroof, Webesto - Problem Diagnosis and Repairs
- Webasto Sunroof System - Information Hotline
- Headliner - Loose At Rear
- SIR - Tilt Column Spring Removal & Installation
- A/T - New Bottom Pan and Controlled Compression Gasket
- A/T Pan Bolt - Leaks
- A/T - TCC Engages In 2nd Gear
- A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
- Overview
- Very Harsh Part Throttle 3-2 Shift At 20-40 MPH:
- Harsh 3-2 and/or 4-2 Shifts:
- Intermittent Harsh Part Throttle 3-2 Shift:
- Harsh 3-2 Shift **High Altitude Only**
- Harsh 3-2 Shift **Low Altitude* Only**:
- Harsh 3-2 Shift Maneuver At 17-20 MPH:
- Harsh 3-2 Coastdown Bump 3.8L or 4.5L At 15-22 MPH:
- Harsh Upshifts - High Altitude Only:
- A/T - Harsh Gear Engagement
- MAP - Revised Output Chart for Codes 33, 34, 63, and 64
- A/T - Difficulty Removing Ignition Key/Hard Shift
- A/T - Intermittent Delayed Upshifts
- Tools - Introduction Of The Fuel Injector Tester
- Ignition System - Revised Code 41/E041 Chart
- Engine Controls - ECM/BCM Exchange Program
- ECM/PCM - Damaged or Mis-Diagnosed
- ECM - Packard 32 Way Connector ID
- Oxygen Sensors - Silica Contamination
- Engine Control - Intermittent Code 44 or 48
- Hub Assembly Seal - Squeak/Squawk Noise
- Brake - New Service Lining Reduces Squeal
- Brakes - Shudder or Pedal Pulsation
- ABS Pump Motor - Failure
- Battery - Diagnosis and Charging
- Battery - Charging Precautions
- Updated Battery Replacement Catalog Numbers
- Warranty - New Vehicle/Replacement Battery
- Battery - Insulator Replacement & Caution
- Tools - Released for CS Generator Diagnosis
- Engine Controls - Temporary CKP Adjusting Procedure
- PRNDL Decoder Module Exchange Test - Revised
- Windows - Power Motors Intermittent or Inoperative
- Power Mirrors - Replacement of the Touchpad
- Cruise Control - Intermittent Drop-Out/Fail to Set
- Radio - Warranty Exchange Program
- Audio - Poor AM or FM Radio Reception, Antenna Coaxial
- Lap/Shoulder Belts - Dealer Installed Rear Kits
- SIR -Disposal of Live Driver Side Inflator Module
- IP Dimmer Control - Proper Setting
- Brakes - Rotor Refinishing Recommendations
- Brakes - Rotor & Hub Flange Cleaning Tool Revision
- Engine - Miss, Hesitation, or Roughness
- Engine - False High Oil Pressure Gage Readings
- Speedometer - Exchange Program
- Odometer/Speedometer - ACDelco Service Center Locations
- Instruments - Tach, Gages & Digital Clusters Diagnosis
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Cooling Fan - Runs Battery Dead Diagnosis
- Cooling Fan - Runs Continuously
- ABS - Revised Diagnostic Charts
- Brakes (ABS) - Revised Hydraulic Unit Leakdown Chart
- Anti-Lock Brake - Aftermarket Products Usage Precaution
- Brakes - Intermittent Pull Under Hard Braking
- Steering Wheel/SIR Coil Assembly - Remove & Install
- Vinyl Top - Repair Information
- Soft Top - Vinyl Trim and Vinyl Top Repair Information
- Paint - Repair of Delamination from ELPO Primer
- Body - Sealer Tape For Collision Repairs
- Airbag - Additional Caution Regarding SIR System Repairs
- SIR - Revised System Tester Caution
- Air Bag - Modification to SIR Service Tester
- Air Bags - System Modified, Tested Modification Required
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- Airbags - Frontal (SIR) ON-Off Switch Kits, Parts/Procs
- Vehicle - Anti-Theft Labeling
- Emissions - Poor Driveability Due to PCV Blow Out
- Recall - Incorrect VECI Label
- 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
- Exhaust System Splash Shield - Knocking Noise
- Engine Controls - Updated Code 26 Chart
- Engine Controls - Updated Code 48 (Misfire) Chart
- ECM/PCM - Damage Prevention
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- Safety Belt (Front) - Inoperable Comfort Lock
- Child Restraint - Auxiliary Seat Belt
- Windshield - Removal and Installation Procedure
- Windshield - Revised Removal & Installation Procedure
- Windshield - Two-Part Urethane Adhesive For Installation
- Door Glass Sash Channel - Mechanical Attachment
- Recall - Windshield Washer Bottle Bracket
- Door - Front Arm Rest Pad Loose/Off at Front
- Cooling - New Thermostat Gasket
- Coolant - Information on Propylene Glycol Usage
- Warranty - Recycled Engine Coolant Policy
- Brakes - Pedal Squeak
- Brakes - Low Brake Pedal/Excessive Brake Pedal Travel
- 89T1533E Adds Information to TSB 88T1303E
- A/T - Inoperative Lo-Reverse Clutch Diagnosis
- A/T - Double Bump, Harsh Engagement, Shudder P to N or R
- A/T - New 2nd Clutch Piston Seal
- A/T - Revised 4TH Clutch Reaction Plates
- A/T - Delayed Neutral to Drive Engagement
- A/T - Revised Forward Clutch Piston Seals
- A/T - New Input Clutch and 3rd Clutch Seal Installers
- A/T - New Input and 3RD Clutch Inner Piston Seal
- A/T - 440T4 Improved Second Clutch Inner Lip Seal
- A/T - 440T4 3rd Clutch Plate Change
- A/T - New Product Information
- A/T - Replacement Model Update
- A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
- A/T - Intermittent Loss of Drive
- A/T - New Final Drive Assembly/Output Shaft/Sun Gear
- A/T - New Input Carrier Thrust Washers
- A/T - Core Return Product Feedback Form
- A/T - Evidence of Paint Flakes In Fluid
- A/T - 440T4 Buzzing Noise
- A/T - 440T4 Improved Shift Feel/2nd Clutch
- A/T - 4T60/440T4 Changes For 1988
- A/T - Late 1988 GM 4T60/440T4 Changes
- A/T - 440T4 Input Sprag Replacement
- A/T - 440T4 2-3 Bind-Up/Slips
- A/T - 440T4 Wiring Schematics
- A/T - Engine Vacuum Testing
- A/T - Diagnosing Converter Lock-Up Problems
- Overview
- Test # 1 - Checking For 12 Volts at Terminal -A-
- Test # 2 - Checking For 12 Volts Across Fuse
- Test # 3 - Checking For 12 Volts Across Brake Switch
- Test # 4 - Adjusting/Replacing the Brake Switch
- Test # 5 - Checking Wires For Shorts and Opens
- Test # 6 - Checking For Ground at Terminal -D-
- Test # 7 - Grounding the -D- Wire
- Test # 8 - Checking Cooler Line Pressure or Surge
- Test # 9 - Checking the Solenoid
- Test # 10 - Checking Electrical Switches on Trans.
- Test # 11 - Checking Lockup Apply Valve
- Test # 12 - Checking Signal Oil Circuit
- Test # 13 - Checking the Computer
- A/T - 440T4 No Line Pressure Rise
- A/T - Early Upshift/No Kickdown
- A/T - 440T4/4T60 Spacer Plate Matching
- A/T - How To Use A Pressure Gauge
- A/T - 440T4 Harsh 3-2 Detent Downshift
- A/T - AXOD/E 44T4's and 125's Chain Stretch
- A/T - 440T4 No Second Clutch Switch
- A/T - 440T4 Channel Plate Gasket Blow-Out
- A/T - 440T4 No Upshift/Wrong Gear
- A/T - THM Late or No Upshifts
- A/T - 440T4 Coast-Down Clunk
- A/T - Drive Axle and Wheel Lug Nut Torque Specifications
- A/T - 440T4/4T60 Late or No Upshift
- A/T - No Converter Clutch Apply When Unit Is Hot
- A/T - Converter Clutch Shudder
- A/T - 125C, 440T4 No Upshift
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - 440T4 Slips Or No Movement Forward
- A/T - 440T4 Converter Regulator Valve
- A/T - 440T4 Blowing Fuses
- A/T - 440T4 Plastic Oil Lube Dam
- A/T - 440T4 Bind-Up In All Gears
- A/T - Sprag Rotation
- A/T - 440T4 TCC Applies With 1-2 Upshift
- A/T - 440T4 Converter Regulator Spring Update
- A/T - 440T4 Lock Up And Cruise Control Problems
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - 440T4 Soft/Slipping 1-2 Upshift Flare
- A/T - 440T4 Reverse Reaction Plate/Valve Body Strap
- A/T - 440T4 Converter Clutch Shudder
- A/T - Choosing the Right ATF
- A/T - 440T4/4T60 Model Code Information
- SIR - Operating Vehicle with Warning Light On
- Lights - New Twilight Sentinel Module
- A/T - Black Paint Flakes Found in Fluid
- A/T - Proper Fluid Checking
- A/T - DEXRON III Fluid Introduction
- PROM/MEMCAL - Identification Marks
- A/T - New Chain Scavenging Scoop and Sprocket Support
- Instruments - Electronic Cluster Illuminated PRNDL
- Instrument Panel - Upper Surface Reflection
- Suspension - Chassis Lubrication Importance
- Charging - CS Series Generator Terminal Identification
- Electrical - New Nickel Tape Shields Harnesses
- Cruise Control - (W/Electro Stepper Mtr.) Diagnostics
- Electrical - Updated Relay and Fuses
- Fuel - How Fuel Economy Is Determined
- Engines (Port Fuel Injected) - Recommended Fuels
- Tires/Wheels - Wheel Weight Usage Precautions
- Glass - Front Window Diagnostics and Repair
- Radio - Power Antenna Will Not Retract
- Electrical - Updated Schematic For Turn Signal Circuit
- Body - Urethane Adhesives for Glass Applications
- Key Code - Information
- Key/Key Number/Security Chip - Replacement
- Paint - Chemical Etching Information
- Paint - Chipping Diagnosis & Repair
- Paint - Industrial Fallout/Rail Dust
- Paint - Assembly Plant Identification
- Warranty - Rail Dust Removal & Chemical Spotting Labor
- A/T - Harsh 3-2 Gear Detent Downshift
- Exhaust - Knocking or Banging From Underside of Vehicle
- Drivetrain - Recommended Axle Lubricant
- A/T - New 1-2 and Reverse Bands
- A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
- A/T - Revised Style 1-2 Band Assembly
- Recall - Console Shift Indicator Actuator
- Lights - Updated Twilight Sentinel Amplifier Location
- A/T - 4T60 No Reverse/Slipping or Band Distress
- Drivetrain - New Seal Protector for Drive Axle R&R
- Drivetrain - Updated Drive Axle Removal Procedure
- A/C - Use of Alternate Refrigerants Other Than R-12
- Contaminated R12 Refrigerant - Testing & Handling
- A/C - R12 or R134a Service Recommendations
- A/C - Retrofitting R-12 Vehicles to R-134A
- A/T - Revised End Play Specification
- A/T - No 3RD Gear, New Thrust Bearing
- A/T - Updated R&R Pinion Gear Washers & Sun Gear
- P/S - Reduced Assist When Cold
- Sunroof - Sliding Glass Panel Weatherstrip Improved
- Daytime Running Lamp - Retrofit Kits
- Brakes, Front - Pulsation Diagnosis, Correction, Repair
- Fuel - Reformulated/Oxygenated Gasolines
- 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
- Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
- Brakes - Rotor Lateral Runout Correction Information
- 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)
- 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