NHTSA complaint: 2004 GMC ENVOY — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
WHEN CONTACT COMES TO A YIELD SIGN TRANSMISSION JERKS BEFORE GOING INTO GEAR. LATER HE WAS TOLD THIS WAS A BRAKE PROBLEM. WHEN APPROACHING A HILL/DOWNHILL AND APPLYING BRAKES THEY LOCK AND CAR SLIDES.*AK DOZENS OF TIMES CHECK BRAKE, SERVICE 4 WHEEL DRIVE LIGHTS HAVE COME ON. CONTACT HAS TAKEN VEHICLE TO DEALER OVER 12 TIMES SINCE IT HAS BEEN PURCHASED. DUE SERVICE LIGHTS, BRAKES AND TRANSMISSION. CONSISTENTLY TOLD BY DEALER THAT NOTHING IS WRONG. BUT DEALER AKNOWLEDGES CHECK BRAKE LIGHTS HAVE COME ON. DEALER STATES THAT IF COMPUTER DIAGNOSTIC DOES NOT PRODUCE AN ERROR CODE, THEN THERE IS NOTHING THEY CAN DO.
National Highway Traffic Safety Administration — Office of Defects Investigation