CAMPAIGN: SUPPLEMENTAL INFLATABLE RESTRAINT (SIR)

SUBJECT: Supplemental Inflatable Restraint (SIR) Inflator Module

ATTN: DEALER PRINCIPAL AND SERVICE MANAGER BE SURE TO REVIEW THIS INFORMATION WITH YOUR SERVICE DEPARTMENT PERSONNEL

General Motors has determined that a defect which relates to motor vehicle safety exists in some 1990 Cadillac model vehicles. In the event of an accident requiring deployment of the driver's side Supplemental Inflatable Restraint (SIR), the SIR Inflator Module, located in the steering wheel assembly, could separate. If separation occurs, the air bag will not inflate as intended, and the driver will not be properly restrained. In addition, separation of the SIR Inflator Module may result in hot combustion gases escaping into the occupant compartment, presenting the possibility that vehicle occupants could receive burn injuries.

VEHICLES INVOLVED

Certain 1990 Cadillac model vehicles as indicated on this bulletin.

DEALER ACTION

To correct this condition, dealers are to contact the owner and replace the SIR Inflator Module per the Vehicles Involved and Service Procedure sections of this bulletin. Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership.

OWNER NOTIFICATION

Owners will be notified of this campaign on their vehicle by Cadillac Motor Car Division. The Cadillac Roadside Service Center is being requested to contact the owners by telephone to immediately advise them of this campaign and arrange this service with you. A follow-up letter (copy attached) will be sent to owners where telephone contact was unsuccessful.

PARTS INFORMATION

Dealers who will service involved vehicles should obtain replacement SIR inflator modules directly from the manufacturer - TRW. These parts will be provided to dealers at no charge and will not be billed on dealer parts account. Dealers should not order parts from GMSPO.

Order parts by calling TRW at 1-800-346-031 1, extension 356. Be prepared to provide the Vehicle Identification Number (to ensure that correct color is shipped) and dealership shipping address, including the name of a dealership contact person. Parts should arrive at dealerships within two days.

VEHICLES INVOLVED

L4202404 L4266093 L4286214 L4216404 L4266095 L4291126 L4217670 L4266122 L4291613 L4224554 L4266218 L4293840 L4224961 L4266318 L4297272 L4225488 L4266334 L4298120 L4226144 L4266779 L4299502 L4226150 L4266994 L4299706 L4226269 L4267005 L4300733 L4227248 L4267034 L4306659 L4227402 L4268116 L4309873 L4235157 L4268509 L4323275 L4235872 L4270794 L4331890 L4238618 L4275549 L4333015 L4244790 L4277373 LU602173 L4246960 L4277446 LU602302 L4248005 L4279088 LU606909 L4255436 L4280493 LU607468 L4263342 L4280606 LU607580 L4263749 L4280741 LU608549 L4263783 L4281606 LU608793 L4263791 L4284205 LU608856 L4263949 L4284428 LU608871 L4264092 L4284711 LU608920 L4264132 L4284844 LU608925 L4264234 L4285155 LU608955 L4264447 L4285161 LU608964 L4264810 L4285550 LU608972 L4265136 L4285751 LU608982 L4265212 L4286200 LU609314 L4265880 L4286202

SERVICE PROCEDURE

IMPORTANT: Refer to appropriate 1990 Cadillac Service Information Manual (Section 3F4) for SIR Inflator Module Service Procedure.

1. Read precautions on handling SIR Inflator Module.

2. Disable the SIR system.

3. Remove and install new Inflator Module.

4. Enable the SIR system.

Retain removed Inflator Module properly tagged in Inflator Module shipping container and return as per shipping instructions provided with replacement module.

CAUTION:

DO NOT DEPLOY

6. Install Campaign Completion Label for 90-C-4.

CREDIT

Credit for this campaign will be issued upon receipt of a properly prepared warranty claim as follows:

Failure Labor Labor Description Code Operation Hours* ----------- ------- --------- ------ Replace SIR Inflator Module 96 V6640 0.5

* This labor time represents the actual time required to perform the correction. Dealers should apply for 0.1 additional hour for administrative allowance as "Other Labor Hours".

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.