2006 GMC ENVOY DENALI XL Electrical System Problems

THE VEHICLE WILL ABRUPTLY GO FROM 70 MPH TO 30'S (SEMI-TRAILER CLOSING IN FAST) AND I CAN'T DO A THING ABOUT IT!! SERVICE STABILITRACK HAS BEEN A THORN WHILE UNDER WARRANTY AND PERSISTS TO BE A PROBLEM NOW THAT IT IS OUT OF WARRANTY! FROM EARLY ON, <10,000 MILES AND OVER 10 TIMES SINCE, THIS VEHICLE HAD BEEN IN TO TWO DIFFERENT DEALERS AND THE PROBLEM, THOUGH INTERMITTENT, STILL EXISTS AND IS A HUGE DANGER TO ME AND MY KIDS BUT I CAN'T JUST GO BUY ANOTHER CAR OR TRADE THIS IN LIKE SOME PEOPLE (INCLUDING THE CAR DEALERSHIP MANAGERS) PORTRAY IS THE BEST OPTION WHEN I SHOULD BE ABLE TO GET GM TO FIX THE CAR OR REPLACE IT WHEN THEY CAN'T SEEM TO FIGURE OUT WHY THE PROBLEM PERSISTS. BUT THAT HASN'T BEEN THE ONLY PROBLEM: GEAR BAND BROKE TWICE ON THE TRANSMISSION, HAD TO HAVE TRANSMISSION REBUILT...

WHILE DRIVING, IN PITCH BLACK DARKNESS ON 6/10/2016 AROUND 1:00 AM, MY HEADLIGHTS SUDDENLY WENT OFF. THE ONLY WAY I COULD OBTAIN LIGHTS WAS USING THE HIGH BEAMS. LOW BEAMS DO NOT WORK AND HIGH BEAM ONLY WORKS IN MANUAL ON/OFF MODE. WE CHECKED THE LAMPS AND FUSES. ALL ARE IN EXCELLENT CONDITION. I HAVE NO LIGHTS WHILE DRIVING OR IN PARK. THE SIDE VIEW MIRRORS MOVE ON THERE OWN AND AT ANY TIME, WHILE DRIVING , IN PARK AND WHEN THE CAR IS NOT RUNNING. THIS HAS BEEN GOING ON SINCE THE DOOR PANEL RECALL WAS REPAIRED. THE DEALER HAS INFORMED ME THAT THERE IS NO RECALL ON THAT EITHER. LAST YEAR (2015) I HAD TO REPLACE THE AIRBAGS (SUSPENSION) ON BOTH REAR WHEELS. THE CAR WOULD DROP DOWN LOWER THAN ANY MID SIZE CAR. ONCE STARTED THE BAGS WOULD INFLATE BUT THE CAR MAY DROP AT ANY GIVE...

FUEL GAUGE GOES TO EMPTY WHEN FULL STOPPED IN TRAFFIC ON I75 WITH GRAND BABIES THEY SAY ITS THE FUEL SENSOR AND SENDING UNITS ARE BAD. *TR

WHEN WEATHER TURNED COLD THE VEHICLE WOULD STALL AND SHUT OFF FOR NO REASON. IN ADDITION TO GAS GAUGE STOPPED WORKING. *TR

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE OVER 40 MPH. THE CONTACT ALSO STATED THAT THE ENGINE AND THE LOW FUEL WARNING LIGHTS ILLUMINATED ALTHOUGH THE FUEL LEVEL WAS AT MAX. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BODY AND FUEL PUMP NEEDED TO BE REPLACED. THE FAILURE MILEAGE WAS 128,623 AND THE CURRENT MILEAGE WAS 138,182...UPDATED 04-03-13 *BF UPDATED 04/22/2013 *JS

VEHICLE GOES INTO REDUCED ENGINE POWER MODE UNEXPECTEDLY WHILE DRIVING WITH NO PRIOR WARNING. MIL LIGHT TURNS ON, REDUCED ENGINE POWER LIGHT TURNS ON, STABILITRAK OFF DIC MESSAGE DISPLAYS, RESULTS IN LOSS OF ACCELERATION AND REQUIRES THE DRIVER TO IMMEDIATELY TAKE EMERGENCY SAFETY ACTIONS. CODES INCLUDE P2135, P0121, AND P060E. ISSUE IS INTERMITTENT, APPEARS MORE FREQUENTLY IN COLD OR WET CONDITIONS. THE ISSUE HAS OCCURRED MORE THAN 10 TIMES SINCE THE INITIAL INCIDENT. DEALER UNABLE TO CORRECT THE ISSUE BY THROTTLE BODY CLEANING AND PCM REPLACEMENT. LATEST ATTEMPT IS TO REPLACE THE THROTTLE BODY. *TR