EXCHANGE PROGRAM - KELSEY HAYES EBC - 310 & 410 (ABS)

SUBJECT: EXCHANGE PROGRAM - KELSEY HAYES EBC-310 AND 410 (ABS) DIAGNOSTIC ASSISTANCE AND PART EXCHANGE PROGRAM

MODELS: 1996 CHEVROLET AND GMC S TRUCK WITH 2.2L ENGINE WITH 2.2L ENGINE (VIN 4 - RPO LN2) 1996 CHEVROLET AND GMC G MODELS (PLANT VIN 1) 1997 CHEVROLET AND GMC S/T, G, P3 MODELS 1997 CHEVROLET AND GMC C SERIES CONVENTIONAL CAB MEDIUM DUTY 1997 CHEVROLET AND GMC T SERIES MEDIUM DUTY TILT CAB 1997 OLDSMOBILE BRAVADA

********************************************************************** 'GM OF CANADA' AND 'NAES' DEALERS ARE NOT AUTHORIZED TO UTILIZE THIS SERVICE BULLETIN. **********************************************************************

THE MODELS LISTED ABOVE ARE EQUIPPED WITH THE KELSEY HAYES EBC-310 OR 410 FOUR WHEEL ANTI-LOCK BRAKE SYSTEM. IN ORDER TO PROVIDE PRODUCT FEEDBACK AND INCREASED CUSTOMER SATISFACTION, A PART EXCHANGE PROGRAM WILL BE IN EFFECT THROUGH THE 1997 MODEL YEAR (UNLESS OTHERWISE NOTIFIED) ON THE FOLLOWING TWO COMPONENTS OF THE EBC-310 AND 410 SYSTEM (FIGURE 1).

-- ELECTRONIC BRAKE CONTROL MODULE (EBCM) -- BRAKE PRESSURE MODULATOR VALVE (BPMV)

THE KELSEY HAYES TECHNICAL ASSISTANCE CENTER (K-TAC), IN ADDITION TO PROVIDING DIAGNOSTIC AND REPAIR ASSISTANCE, WILL ADMINISTER THE PART RESTRICTION PROGRAM.

AN AUTHORIZATION CASE NUMBER WILL BE REQUIRED FROM K-TAC BEFORE A BPMV OR EBCM WILL BE SHIPPED. PARTS WILL BE SENT OVERNIGHT AND WILL BE INVOICED TO DEALERS VIA GM SERVICE PARTS OPERATIONS (GMSPO). A CORE CHARGE WILL BE INVOLVED. INSTALLATION INSTRUCTIONS AND CORE RETURN PROCEDURES WILL BE INCLUDED IN EACH SHIPMENT.

IMPORTANT: TO RECEIVE CORE CREDIT, THE EBCM AND BPMV CORE RETURN PROCEDURES MUST BE FOLLOWED.

TO INITIATE A PARTS ORDER, OR TO OBTAIN DIAGNOSTIC ASSISTANCE, DEALERS SHOULD CONTACT K-TAC BY DIALING THE FOLLOWING PHONE NUMBER.

1-800-546-4ABS (4227)

K-TAC PHONES WILL BE MANNED FROM 7:30 A.M. UNTIL 7:00 P.M. EST MONDAY THROUGH FRIDAY. THE REMAINDER OF THE TIME, AN AUTOMATED ANSWERING MACHINE WILL TAKE THE INFORMATION FOR A CALLBACK.

FOR NEXT DAY DELIVERY OF AN EBCM OR A BPMV, IT IS RECOMMENDED THAT CALLS BE RECEIVED BY K-TAC BEFORE 3:00 P.M. EST.

PRIOR TO CALLING K-TAC, PLEASE COMPLETE THE DIAGNOSTIC SHEET ON THE FOLLOWING PAGE (MAKE COPIES OF THE ORIGINAL). THE INFORMATION YOU PROVIDE WILL HELP TO QUICKLY IDENTIFY AND CORRECT CONDITIONS WHICH AFFECT OUR CUSTOMERS SATISFACTION. FOR ADDITIONAL EBC-310 AND 410 DIAGNOSTIC AND SERVICE INFORMATION, REFER TO THE APPROPRIATE YEAR AND MODEL SERVICE MANUAL.

IMPORTANT: K-TAC DOES NOT HAVE WARRANTY APPROVAL AUTHORITY. WARRANTY CONCERNS SHOULD BE DIRECTED TO YOUR DIVISIONAL REPRESENTATIVE FOR APPROVAL PRIOR TO MAKING REPAIRS.

FIGURES: 1 ATTACHMENTS: 1

CAPTIONS: FIGURE 1 - EBC-310 AND 410 ELECTRO-HYDRAULIC CONTROL UNIT

ATTACHMENT: - DIAGNOSTIC SHEET

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.

COPYRIGHT 1996 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.