2004 GMC ENVOY XL Complaints

I HAVE A 2004 GMC ENVOY (UNDER 26,000 MILES). I HAVE NOTICED THAT AFTER THE SUV RUNS FOR ABOUT 1/2 HR THE SPEEDOMETER WILL DISPLAY MY SPEED BEING BELOW ZERO. IN REALITY I AM GOING ABOUT 50 MPH. THE SPEEDOMETER IS BEING ACTING VERY ERRATIC. IS THERE ANYTHING THE GM CAN DO FOR THIS PROBLEM. I AM IN THE PROCESS OF TALKING TO THE DEALERSHIP WHERE I PURCHASED THE VEHICLE. I HAVE READ ABOUT THE SIMILAR PROBLEM TO OTHER ENVOY OWNERS ON THE INTERNET. I HAVE ALSO SEEN THE SAME ISSUE IN OTHER GM BRANDS. I THINK GM SHOULD RECALL 2004 ENVOYS FOR THIS PROBLEM. *JB

ON MY 2004 GMC ENVOY XL THE SPEEDOMETER HAS FAILED AT ABOUT 39000 MILES. IT DOES NOT INDICATE AN EXACT SPEED, SOMETIMES IT MOVES, SOMETIMES IT DOESN'T. *JB

THE SPEEDOMETER AND TACHOMETER ON OUR 2004 ENVOY XL SOMETIMES QUITS WORKING. THIS CREATES AN UNPREDICTABLE SITUATION ESPECIALLY ON LONG TRIPS. *JB

SPEEDOMETER WAS ERRATIC. SOMETIMES REGISTERED HIGHER MPH THAN THE VEHICLE WAS MOVING. TURNING THE VEHICLE OFF & RESTARTING WILL BRING IT DOWN BY 10 MPH EACH TIME. VERY UNSAFE TO BE UNAWARE OF THE SPEED YOU ARE TRAVELING!*AK

PULLED ONTO THE ROAD (2004 GMC ENVOY XL) AT APPROXIMATELY 5-10 MPH LOUD NOISE. VEHICLE BEGAN TO HAVE DIFFICULTY MANUALLY SHIFTING (AUTOMATIC TRANSMISSION) AND I LOST REVERSE. UPON FURTHER INVESTIGATION DISCOVERED GM TSB 00-07-30-022C INDICATING THERE IS A FAULTY PART (REACTION SUN SHELL GEAR) IN THE TRANSMISSION IN VEHICLES MANUFACTURED IN 1993 - 2005. DEALER TECHNICIAN CONFIRMED. COST OF OVER $3,000 TO REPAIR, MY COSTS SINCE THE VEHICLE IS 3 MONTHS OUT OF WARRANTY. PURCHASED NEW. *AK

2004 GMC ENVOY WIPER MODULE ASSEMBLY FAILURE. INTERMITTENT FAILURE OF WINDSHIELD WIPERS. FAILED TO TURN OFF WHEN TURNED TO THE OFF POSITION. CHP HELPED ME FIND AND PULL THE FUSE OUT TO TURN THEM OFF. AFTER VEHICLE SITS FOR A FEW DAYS, WIPERS TURN OFF. $435 FOR DEALER REPLACEMENT. VEHICLE WAS PURCHASED ON 03/05/2004, BUT I NEGLECTED TO GET IT TO THE DEALER UNTIL 03/16/2004. GMC SAYS SORRY, ITS OUT OF WARRANTY. 31K ON VEHICLE. DEALER WILL HAVE REPLACEMENT PART IN, 3 DAYS FROM TODAY.

ERRATIC SPEEDOMETER READING ON 2004 GMC ENVOY, STARTED 45 DAYS AGO AND READING IS DIFFERENT EVERYDAY. *NM

I PURCHASED A 2004 ENVOY WITH 18,000 MILES IN THE SUMMER OF 2006. BEGINNING IN JANUARY 2007, MY 3 YEAR OLD SON LET ME KNOW THAT HE WAS COLD WHILE RIDING IN THE BACK SEAT AND BEGGED THAT I TURN OFF THE AIR. TURNS OUT THAT THE VENT IN THE BACK OF THE CAR WAS BLOWING ICE COLD AIR ON MY SON. THE TEMPERATURE OUTSIDE WAS APPROXIMATELY 10 DEGREES. I CALLED AND SCHEDULED A TIME TO TAKE MY CAR INTO THE DEALERSHIP, AS IT WAS STILL UNDER WARRANTY. I FOUND OUT THAT THE VEHICLE HAD A "BULLETIN" STATING THAT GMC WAS FAMILIAR THAT THERE WAS HEAT FAILURE IN THE BACK OF THE CARS, BUT THE COMPANY WAS CHOOSING NOT TO DO A FULL RECALL. INSTEAD, THEY WERE WAITING FOR CUSTOMERS TO DISCOVER THE PROBLEM AND BRING IT IN FOR REPAIR. THEY HAD TO INSTALL A SPECIAL PUMP, HOWEVER, THIS STILL DID NOT FIX THE PROBLEM. INSTEAD, IT JUST MODIFIED THE TEMPERATURE OF THE AIR FROM APPROXIMATELY 20 DEGREES TO MAYBE 50 DEGREES. NOT A LOT OF COMFORT IN A MINNESOTA WINTER. I WAS INFORMED THAT BOTTOM LINE, IT WAS A DESIGN FLAW WITH THE VEHICLE, AND THAT I COULD JUST TRY TO FORCE THE AIR FROM THE FRONT OF THE CAR TO THE BACK SEAT. WHAT IS THE POINT OF HAVING VENTS IN THE BACK OF THE CAR, AND HAVING A SEPARATE HEATING ELEMENT SPECIFICALLY FOR THE BACK OF THE CAR? I PURCHASED THIS CAR BECAUSE I THOUGHT THAT WITH THE VENTS IN THE BACK, IT WOULD HELP HEAT THE CAR FASTER IN THE WINTER, HELPING TO KEEP MY SON WARM. I DO NOT BELIEVE THAT HEAT SHOULD BE A LUXURY, AND AM DISAPPOINTED THAT GMC WOULD NOT DO MORE TO CORRECT THE PROBLEM. I WANT IT TO BE KNOWN TO THE GENERAL PUBLIC THAT THIS IS A PROBLEM IN THE ENVOY AND TRAILBLAZER, ESPECIALLY FOR FAMILIES WITH SMALL CHILDREN WHO DO NOT HAVE A VOICE TO LET THEIR PARENTS KNOW THE ICY AIR BLOWING ON THEM. *NM

SPEEDOMETER DOESN'T WORK. IT WILL JUMP AROUND AND STICK ON ANY GIVEN SPEED AND REMAIN THERE. SOMETIMES WHEN THE VEHICLE IS RESTARTED IT WILL DECREASE 5 MPH FROM THE POINT AT WHICH IT WAS LAST POSITIONED. I CANNOT REGULATE MY SPEED WITHOUT THE SPEEDOMETER AND AFRAID THAT I WILL CAUSE AN ACCIDENT. IT HAS NOT BEEN FIXED.

SPEEDOMETER BEGAN ACTING UP A FEW MONTHS AGO AND NOW IT'S CONSTANTLY ACTING UP. SOMETIMES IT SHOWS ME GOING FASTER THAN ACTUAL AND SOMETIMES IT SHOWS ME GOING SLOWER THAN ACTUAL AND SOMETIMES IT JUST SITS BELOW ZERO AND DOESN'T MOVE AT ALL. NOW THE OIL PRESSURE GAUGE STOPPED WORKING. IT READS ALL THE WAY PAST 80 AND DOESN'T EVEN MOVE WHEN I TURN THE VEHICLE OFF. I DO NOT TRUST ANY OF MY GAUGES NOW. I CANNOT BE ASSURED THAT ANY OF THEM ARE READING CORRECTLY. *NM