GMC SONOMA 1991: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

General Information

NHTSA Campaign ID Number: 99V193000

Make Model Year
GMC SONOMA 1991
Date Owners Notified Date Received by ODI Date Added to Database
2000-05-31 1999-07-19 1999-07-21

Manufacturers Involved: General Motors, LLC

Manufacturer Campaign Number: 99041

Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

Potential Number Of Units Affected: 1125749

Report Initiator: ODI ODI Report

Summary

VEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS "ANTILOCK BRAKING SYSTEM" MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-WHEEL DRIVE CAN MALFUNCTION CAUSING INCREASED STOPPING DISTANCES DURING ABS STOPS WHILE IN THE TWO-WHEEL DRIVE MODE.

Consequence

IF THIS OCCURRED AT A TIME WHEN MINIMUM STOPPING DISTANCE WAS REQUIRED, A VEHICLE CRASH COULD OCCUR WITHOUT PRIOR WARNING.

Remedy

DEALERS WILL REPLACE OR REPAIR THE 4-WHEEL/2-WHEEL DRIVE SWITCH.

Notes

THE FIRST PHASE OF OWNER NOTIFICATION LETTERS BEGAN MAY 31, 2000,WITH THE LAST MAILING COMPLETED BY OCTOBER 2000. OWNERS CAN CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT '1-888-327-4236'.