STOP OXYGEN SENSOR REPLACEMENT -MAINTENANCE SCHEDULE UPDATE-

For your information, the owner letter shown on the reverse side of this bulletin is being sent to all 1982 T1000 model owners of record in California.

As stated, the 1982 General Motors Maintenance Schedule for gasoline-fueled passenger cars specifies oxygen sensor replacement at 30,000 miles for 1982 T1000 models. This maintenance service does not apply to 1982 T1000 models equipped for California emissions; only Federal T1000 models equipped with Computer Command Control and automatic transmission require the oxygen sensor replacement service.

Also, please note the letter contains reference to speedometer flag reset service on some 1982 T1000 models.

WARRANTY INFORMATION

Description Trouble Code Labor Operation Labor Hours ----------- ------------ --------------- ----------- Reset Flag 54 T3060 0.3 Hr.

This notification is being sent to all 1982 Pontiac T1000 owners in the State of California.

The General Motors Maintenance Schedule for 1982 Gasoline-Fueled Passenger Cars equipped with automatic transmission specifies replacement of the oxygen sensor at 30,000 miles. This statement is in error and this maintenance requirement does not apply to 1982 T1000 models equipped with the California emissions option.

The Maintenance Schedule also refers to an emissions flag which will appear on the odometer face to alert the owner to the need for changing the oxygen sensor. Your vehicle should not have been assembled with that flag since, as noted above, the oxygen sensor on 1982 Pontiac T1000 models equipped with the California emissions option need not be replaced. inadvertently, however, some 1982 T1000 models were built with an emission flag which will appear in the speedometer face at each 30,000 mile interval. Should an emissions flag appear on your car's speedometer, please make an appointment with your dealer for correction. Resetting the flag takes less than one-half hour and will be performed at no charge to you.

Please keep this notification in your car with your maintenance folder and leave it with the car when sold.

We have taken this action in the interest of continued customer satisfaction.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.