2002 GMC Jimmy

ON NOVEMBER 30, 2001, GENERAL MOTORS (GM) CONDUCTED SAFETY RECALL 01V-364 FOR THE SUBJECT VEHICLES BUILT BETWEEN SEPTEMBER 16, 1999 AND AUGUST 28, 2001 TO REMEDY A DEFECTIVE HAZARD SWITCH THAT WOULD CAUSE A LOSS OF HAZARD AND STOP LAMP ILLUMINATION.THE HAZARD SWITCH IS CONTAINED WITHIN THE VEHICLE MULTIFUNCTION SWITCH.ODI OPENED THIS INVESTIGATION BASED ON REPORTS THAT SOME CONSUMERS WERE NOT NOTIFIED OF THE ORIGINAL RECALL OR THAT THEY HAD REPAIRS DONE UNDER 01V-364 BUT EXPERIENCED SUBSEQUENT MULTIFUNCTION SWITCH FAILURES.THE MULTIFUNCTION SWITCH SUPPORTS THE OPERATION OF CRUISE CONTROL, WINDSHIELD WIPERS, EXTERIOR LIGHTING AND TURN SIGNALS IN ADDITION TO HAZARD AND STOP LAMPS. ON MAY 21, 2008, GM NOTIFIED THE AGENCY THAT IT ERRONEOUSLY MISSED IDENTIFYING 5,862 VEHICLES THAT SHOULD HAVE BEEN INCLUDED IN RECALL 01V-364.GM WILL NOW NOTIFY OWNERS OF THESE VEHICLES UNDER A NEW NHTSA RECALL NUMBER 08V-231.OWNER NOTIFICATION BEGAN ON JUNE 17.THE PRIMARY CAUSE OF BRAKE LAMP FAILURE WAS A DESIGN CHANGE FROM COPPER TO BRASS CONTACT MATERIAL IN THE HAZARD SWITCH.THIS CHANGE WAS EFFECTIVE FOR VEHICLES BUILT AFTER SEPTEMBER 16, 1999.GM CHANGED THE MATERIAL BACK TO COPPER FOR VEHICLES BUILT AFTER AUGUST 28, 2001. THE REMEDY PART FOR BOTH 01V-364 AND 08V-231 CONTAINS COPPER CONTACTS.GM'S DATA SHOWS THAT LESS THAN 1% OF VEHICLES REPAIRED UNDER RECALL 01V-364 REQUIRED ADDITIONAL SUBSEQUENT REPAIR OR REPLACEMENT OF THE HAZARD OR MULTIFUNCTION SWITCH.THIS INVESTIGATION IS CLOSED.

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.

This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.