GM Service Manual Online
For 1990-2009 cars only

MOBILE RADIO/TELEPHONE DIAGNOSTIC HOT-LINE NUMBER

EFFECTIVE IMMEDIATELY, DIAGNOSTIC ASSISTANCE FOR CONDITIONS RELATING TO ELECTROMAGNETIC INTERFERENCE (EMI) OF MOBILE RADIO/TELEPHONE INSTALLATIONS ON CADILLAC VEHICLES CAN BE OBTAINED THROUGH DELCO ELECTRONICS "DIAL DELCO" HOT-LINE. TO PROPERLY UTILIZE THE "DIAL DELCO" HOT-LINE, IT IS RECOMMENDED DEALERS FOLLOW THE LISTED PROCEDURE WHEN DIAGNOSING EMI CONDITIONS: 1.REVIEW CADILLAC SERVICE PUBLICATIONS. 2.REQUEST ASSISTANCE OF LOCAL CADILLAC ZONE SERVICE PERSONNEL. 3.REQUEST ASSISTANCE THROUGH "DIAL DELCO" USING THE FOLLOWING TOLL- FREE NUMBERS: 1-800-428-0501 (EXCEPT INDIANA) 1-800-382-0531 (INDIANA ONLY).

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.