POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
2004 GMC ENVOY DEVELOPED THE FOLLOWING PROBLEMS: VEHICLE STALLED, TURN SIGNALS STOPPED WORKING, BLOWER FAN STOPPED WORKING, AND THE SRS LIGHT REMAINS LIT.*MR THE TURN SIGANLS STOPPED WORKING DUE TO A SHORT IN THE FLASHER. THE POWERTRAIN CONTROL MODULE WAS REPLACED DUE TO THE SES LIGHT ILUMINATING. THE BLOWER MOTOR FAN FAILED 4 TIMES DUE TO A SHORT IN THE WIRES AND CONTROL HEAD. THE VEHICLE OVERHEATED, BUT THE PROBLEM COULD NOT BE DIAGNOSED. THE LCD DISPLAYS, KNOBS BECOME EXTREMLY HOT AFTER HOURS OF DRIVING. *JB
1999
ELECTRICAL SYSTEM
NAR 1/29/2003. THE CONSUMER STATED THE VEHICLE HAS ELECTRICAL AND TRANSMISSION PROBLEMS. THE PASSENGER REAR VIEW MIRROR ROTATED TOWARD THE FRONT OF THE VEHICLE WITHOUT ANY OUTSIDE ACTION. THE WINDSHIELD WIPERS CHANGED THE WIPING SEQUENCE AT ITS FREE WILL. THE DOORS LOCKED ON THEIR OWN AND THE WINDOWS ROLLED DOWN ON THEIR OWN. THE CONSUMER WAS UNABLE TO SHIFT INTO 1ST OR 2ND GEAR REGARDLESS OF WHETHER THE VEHICLE WAS IN 2 OR 4-WHEEL DRIVE. THE DEALER ADVISED THE SHIFTER WAS DEFECTIVE. *JB