2005 GMC SIERRA 2500 Electrical System Problems

1). Dash light stays on constantly and reads SERVICE AIR BAG. This was checked out at an auto repair shop. If air bag doesn't respond, it could be fatal. 2). Check engine light is always on. Was checked out at an auto repair shop and repaired on 10/19/2021. 3). Right engine exhaust manifold is cracked and leaking exhaust. Was checked out at a muffler repair shop. In time I'm afraid fumes my leak into the truck cab. 4). A brake line ruptured and was repaired on 09/02/2020.

TL* THE CONTACT OWNS A 2005 GMC SIERRA. THE CONTACT STATED THAT WHILE THE VEHICLE WAS PARKED AND TURNED OFF THE FOG LAMPS ACTIVATED INDEPENDENTLY. WHILE INSPECTING THE VEHICLE IT WAS DISCOVERED THAT THE DRIVER SIDE DASHBOARD HAD MELTED AND A BURNING ODOR WAS PRESENT INSIDE THE CABIN OF THE VEHICLE. THE FIRE DEPARTMENT WAS NOT NOTIFIED. THE CAUSE OF THE FAILURE WAS NOT YET DETERMINED. THE MANUFACTURER AND LOCAL DEALER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 160,000.

Mileage: 160,000

ALWAYS TURNS OFF WHILE DRIVING OR WHILE AT IDLE

Mileage: 5

THE SPEEDOMETER IS FAILING. IT WORKS ERRATICALLY. IT EVENTUALLY GOES TO ZERO AND STAYS THERE UNTIL I STOP AND RESTART THE TRUCK OR LET IT SIT OVERNIGHT.

Mileage: 55,000

FUEL GAGE,SPEEDOMETER BROKEN, OIL GAGE , BATTERY INDICATOR ETC ALL STOPPED WORKING. ALSO STEERING COLUMN HAS BEEN FIXED THREE TIMES AND BROKE AGAIN.

TODAY WHEN I PARKED MY GMC SIERRA 2500HD, I TURNED OFF THE KEY SWITCH AND I NOTICED MY BLOWER MOTOR WAS STILL RUNNING. AFTER A SHORT PERIOD OF TIME I SMELT SOMETHING BURNING. I WENT OUT UNDERNEATH THE HOOD OF MY VEHICLE LOCATED THE FUSE BOX AND REMOVED THE 40 AMP BLOWER MOTOR FUSE AND THAT SHUT DOWN THE HEATER AND THE SMELL STARTING GOING AWAY. IT WAS 19 DEGREES HERE IN OKLAHOMA AT THE TIME OF INCIDENT. I DID SOME RESEARCH ON THE INTERNET AND GOT SEVERAL HITS ABOUT GMC TRUCKS THAT EXPERIENCED THE SAME ISSUE EXCEPT SOME OF THE VEHICLES BURNED COMPLETELY TO THE GROUND. I ALSO GOT INFORMATION FROM THE INTERNET THAT GENERAL MOTORS OF CANADA RECALLED ALL THERE GM PRODUCTS THAT HAD THE SAME BLOWER MOTOR ASSEMBLY. I FILED A COMPLAINT WITH GENERAL MOTORS, DETROIT. THEY SAID THEY HAD NO RECALLS. *TR

Mileage: 155,000

AFTER RETURNING FROM A DAY OF SHOPPING, I PARKED MY TRUCK AT THE BACK, LIKE ALWAYS. I HAD BEEN NOTICING OIL SPOTS FOR THE LAST FEW DAYS BUT CHALKED IT UP TO AGE AND MILEAGE OF THE TRUCK. AFTER ABOUT TWO HOURS I SAW SMOKE FROM THE BACK AREA WHERE I PARKED. I RAN OUTSIDE TO CATCH TO MY SURPRISE! MY TRUCK WAS ON FIRE, I AS QUICKLY AS POSSIBLE, GRABBED THE GARDEN HOSE AND PUT OUT THE FIRE! I REALIZED AS I LOOKED, THAT THE FIRE HAD STARTED AT THE AREA UNDER THE HOOD WHERE THE FUSES, AND WIRING WERE LOCATED. AS I SLOWLY REBUILT MY TRUCK, I REALIZED THAT THE FIRE WAS NOT THE ONLY PROBLEM THAT I HAD! THE FACT OF THE MATTER WAS THAT IF THE FIRE HAD NOT SHUT MY TRUCK DOWN, THERE WERE A WHOLE ARRAY OF OTHER PROBLEMS THAT I WOULD OF HAD TO REPAIR.

Mileage: 118,542

1) THE DRIVER DOOR POWER WINDOWS,LOCKS,AND EXTENDED MIRROR BUTTONS QUIT WORKING,I CAN BE DRIVING DOWN THE ROAD AND I CANT ROLL THE WINDOWS DOWN ,CANT ADJUST MY MIRROR AND TIME THAT I STOP TO CHECK THE FUZES THE DOOR CONTROLS START WORKING AGAIN. I TRY TO LOCK THE DOORS WHEN I GET OUT OF THE TRUCK AND NOTHING IS WORKING THE PASS.SIDE WORKS FINE,I TOOK OFF THE DOOR PANEL AND THEY START WORKING BUT BY THE TIME I PUT THE PANEL BACK ON .THERE STILL WORK BUT COME BACK OUT AND THEY QUIT AGAIN. 2)SOMETHING WRONG WITH MY STEERING I THOUGHT IT WAS MY POWERSTEERING PUMP AND REPLACED IT ,BUT THERE STILL SOMETHING WRONG I THINK IT MIGHT BE THE STEERING BOX I HAVE OIL LEAKING SOMEWHERE AROUND THERE 3)ITS MY AIR CONDITIONER AND HEATER, I CAN HAVE THE AIR ON I GET NOTHING BUT HOT AIR ON THE DRIVER SIDE AND COLD ON THE PASS SIDE.I CAN USE THE VENT WITH AIR AND ITS THE SAME,JUST HOT ON THE DRIVER SIDE.AND NOT ON THE PASS SIDE. 4) I KEEP LOSING THE GMC CENTER CAP ON MY FACTORY WHEELS I KEEP THE BLACK LUGNUT COVERS TIGHT BUT I LOSE ANOTHER CENTER CAP, 5) GMC ALUMINUM RIMS CLEAR COATING PILLED OFF. *TR

Mileage: 117,800

I BOUGHT MY GMC SIERRA 2500 IN JUNE OF 2005. SHORTLY AFTER I BOUGHT THE TRUCK I STARTED TO NOTICE RUST ON THE TRAILER HITCH AND FRAME RAILS. AS THE YEARS HAVE GONE BY, THE ENTIRE UNDERCARRIAGE IS RUSTED OVER. OVER THE LAST SEVERAL YEARS A BRAKE LINE RUSTED THROUGH AND THE BRAKE PADS & ROTORS HAVE BEEN REPLACED SEVERAL TIMES. I WAS LUCKY TO BE PICKING MY TRUCK UP FROM THE SHOP AFTER AN OIL CHANGE & NOT DRIVING IT, WHEN I NOTICED BRAKE FLUID ON THE GROUND UNDER MY TRUCK.MY SPEEDOMETER DOES NOT WORK PROPERLY & THE DASHBOARD LIGHTING WORKS OCCASIONALLY. MY TRAILER HITCH RUSTED SO BAD THAT THE LAST TIME I PUT THE RECEIVER INTO THE HITCH IT WAS STUCK & I HAD TO GET A FRIEND TO CONNECT A CHAIN TO HIS TRUCK & WHILE I DROVE FORWARD & HE REVERSED, THE RECEIVER FINALLY BROKE FREE AFTER APPROX. 10 MINUTES. *TR

Mileage: 50,000

WHILE PULLING A 30 FT. CAMPER AT APPROXIMATELY 50 MPH THE SPEEDOMETER SUDDENLY WENT PAST 120 MPH AND STAYED . I NOW HAVE NO WAY OF DETERMINING MY SPEED . THE LOCAL DEALER SAID I WOULD HAVE TO BRING IT IN AND LEAVE IT AT LEAST 3 DAYS . *TR

Mileage: 114,000

PROBLEMS TURNING IGNITION SWITCH BACK AND FORTH, AND ALL OTHER GENERAL MOTORS TRUCK THIS MODEL BOTH CHEVROLET AND GMC HAVE HAD SAME EVENT. FATHERS TRUCK IS 2007 CHEVROLET SUBURBAN HAS SAME PROBLEM. *TR

Mileage: 120,000

LASS THEN 50000 MIL THE SPEEDOMETER STOP WORKING IT NEED A NEW ( INSTRUMENT PANEL ) *TR

Mileage: 49,890

THE SPEEDOMETER READS FAULTY SPEEDS, AS MUCH AS 20 MPH OVER THE ACTUAL SPEED. *TR

Mileage: 38,000

TL* THE CONTACT 2005 GMC SIERRA 2500 HD. THE CONTACT STATED AFTER PARKING THE VEHICLE, THE FAN MOTOR RELAY WIRES BURNED. THE FAILURE WAS NOT DIAGNOSED BY THE DEALER OR A LOCAL MECHANIC. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 170,000.

Mileage: 170,000

INSTRUMENT CLUSTER FAILURE, TACHOMETER, AND SPEEDOMETER ARE INOPERABLE, BUT ALL OTHER GAUGES, SUCH AS FUEL LEVEL, BATTERY METER, OIL PRESSURE, COOLANT TEMPERATURE, AND TRANSMISSION TEMPERATURE GAS ARE STILL FUNCTIONING. OWN ANOTHER 2005 1500 WITH 32,632 WHICH HAS JUST STARTED DOING THE SAME. *TR

TL* THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT STATED THAT THE SPEEDOMETER WOULD NOT PROVIDE ACCURATE SPEED RATES. THE SPEEDOMETER WOULD READ THAT THE CONTACT WAS TRAVELING 120 MPH WHEN THE CONTACT WAS ACTUALLY TRAVELING 60 MPH. THE CONTACT HAD NOT TAKEN THE VEHICLE TO THE DEALER FOR INSPECTION OR REPAIRS. THE CURRENT MILEAGE WAS 102,000 AND THE FAILURE MILEAGE WAS UNKNOWN.

TL* THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. THE CONTACT STATED THAT THE POWER STEERING WOULD SEIZE AND THE VEHICLE WOULD HESITATE TO STOP WHEN THE BRAKES WERE DEPRESSED. IN ADDITION, THE TRANSMISSION, WINDSHIELD WIPERS, CRUISE CONTROL, AND THE INSTRUMENT CLUSTER FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPLACED THE TRANSMISSION, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES, BUT DENIED ANY ASSISTANCE WITH REPAIRS TO THE VEHICLE. THE VEHICLE WAS NOT FURTHER REPAIRED. THE FAILURE MILEAGE WAS 29 AND THE CURRENT MILEAGE WAS 100,000.

Mileage: 29

AFTER DRIVING DOWN THE ROAD MY SPEEDOMETER STUCK AT DIFFERENT SPEEDS. WHEN PARKED IT WOULD SAY I WAS GOING AT ANY SPEED EXCEPT 0 MPH (FOR EXAMPLE 120 MPH.).

Mileage: 58,885

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500HD. THE CONTACT STATED THAT THE SPEEDOMETER BECAME NON-FUNCTIONAL AND FAILED TO DISPLAY THE SPEED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE CURRENT MILEAGE WAS APPROXIMATELY 106,000. THE FAILURE MILEAGE WAS APPROXIMATELY 88,400.

Mileage: 88,400

AT 78,000 MILES SPEEDOMETER PEGGED OUT AT 120 MPH. PULLED CLUSTER PANEL AND PUSHED NEEDLE BACK DOWN TO 0. WORKED FINE FOR ABOUT 3,000 MILES. NOW IT IS A EVERYDAY REPAIR. THIS IS A BIG SAFETY CONCERN. I LOVE HOW GM KNOWS WHEN THESE WILL FAIL AT 70,000. GM OR DELPHI SHOULD STEP UP TO THE PLATE AND FIX THIS. *TR

Mileage: 78,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500HD 6.0. THE CONTACT STATED THAT HE NOTICED THAT THE SPEEDOMETER, FUEL GAUGE AND HEAT ODOMETER GAVE INACCURATE READINGS. THE VEHICLE WAS INSPECTED AT A LOCAL REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000. THE VIN WAS UNAVAILABLE.

Mileage: 100,000

DETAILS: 2005 GMC SIERRA PICK UP TRUCK. THE SPEEDOMETER NEEDLE WILL NOT GO BACK TO 0 WHEN I AM STOPPED, WHICH CAUSES THE SPEEDOMETER TO READ WRONG MPH WHEN DRIVING. THE PROBLEM IS OCCURRING MORE AND MORE SINCE IT FIRST BEGAN. IT STARTED FOR NO APPARENT REASON APPROXIMATELY 6 - 7 MONTHS AGO. DEALER WAS VERY AWARE OF THIS PROBLEM, BUT I AM PAST ANY WARRANTIES OUT THERE. APPROXIMATE COST TO ME TO FIX FROM THE DEALER IS $500. I CANT AFFORD THIS. HOWEVER, BASED UPON NUMBER OF POSTINGS ON THE INTERNET, IT LOOKS TO ME LIKE A RECALL IS IN ORDER. *TR

Mileage: 80,000

2005 GMC 2500HD PICKUP TRUCK, HVAC BLOWER SPEED CONTROLLER/RELAY CONNECTOR GOT HOT, BURNED OUT CONNECTOR AND WIRE, LOTS OF SMOKE. IT HAPPENED WHEN TURN FAN TO HIGH. THE FAILURE WAS DUE TO CONTACT RESISTANCE AT THE CONNECTOR. THE WIRE HARNESS END IS TINTED COPPER, THE RELAY/CONTROLLER CONNECTOR IS BARE METAL. DUE TO GALVANIZATION OF DIFFERENT METAL IN THE CONNECTION SYSTEM, THE CONNECTOR IS UNDERSIZE FOR THE BLACK WIRE, WHICH IS THE RETURN CURRENT BECAUSE THE BLOWER ASSEMBLY IS PLASTIC. THE RESISTANCE BETWEEN THE CONTACT POINT OF THE CONNECTOR ACT AS HEATER AND GOT HOT, BURN OUT CONNECTION AND CONNECTOR HOUSING. THE SPEED CONTROL UNIT, WHICH COMPOSED OF FEW POWER RESISTOR IS MOUNTED IN THE AIR STREAM THAT IT WILL COLLECT VAPOR WATER DUE TO CONDENSATION WHEN AC IS IN USED. THIS CAUSE CORROSION IN THE SPEED CONTROLLER/RELAY BOARD. THE WORK AROUND IS BYPASS THE CONNECTOR BY SHORTING THE BLACK WIRE FROM THE BLOWER MOTOR TO THE BLACK INPUT WIRE THAT BURNED OUT. CUT THE INPUT BLACK WIRE, WIRE NUT IT TOGETHER WITH A 12 AWG JUMPER WIRE, CUT THE BLACK WIRE AT THE BLOWER MOTOR, WIRE NUT IT TO THE OTHER END OF THE JUMPER WIRE. AFTER THE JUMPER PUT IN, BLOWER FAN WORKS IN ALL SPEED AND NO SMOKE FROM CONNECTOR AND WIRE. *TR

Mileage: 20,615

2005 GMC SIERRA PICK UP TRUCK. THE SPEEDOMETER NEEDLE WILL NOT GO BACK TO '0' WHEN I AM STOPPED, WHICH CAUSES THE SPEEDOMETER TO READ WRONG MPH WHEN DRIVING. THE PROBLEM IS OCCURRING MORE AND MORE SINCE IT FIRST BEGAN. IT STARTED FOR NO APPARENT REASON APPROXIMATELY 6 - 7 MONTHS AGO. DEALER WAS VERY AWARE OF THIS PROBLEM, BUT I AM PAST ANY WARRANTIES OUT THERE. APPROXIMATE COST TO ME TO FIX FROM THE DEALER IS $500. I CAN'T AFFORD THIS. HOWEVER, BASED UPON NUMBER OF POSTINGS ON THE INTERNET, IT LOOKS TO ME LIKE A RECALL IS IN ORDER. *TR

Mileage: 80,000

SPEEDOMETER QUIT WORKING WHILE DRIVING. SHOWS 75 MILES AN HOUR WHILE STOPPED GOES UP TO 120 ON ACCELERATION. NO WAY TO KNOW ACTUAL SPEED. *TR

Mileage: 80,175

TL* THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT STATED HER SPEEDOMETER WAS INCORRECTLY READING 16.2 MPH AND THEN THE SPEEDOMETER BECAME COMPLETELY INOPERABLE. THE CONTACT STATED THAT THE SPEEDOMETER WAS CURRENTLY DISPLAYING A ERROR MESSAGE. AN AUTHORIZED DEALER WAS NOTIFIED OF THE FAILURES. THE ESTIMATED REPAIR COST WAS $1,000. THE VEHICLE HAD NOT BEEN REPAIRED AT THE TIME OF THE COMPLAINT. THE FAILURE MILEAGE WAS 71,000

Mileage: 71,000

I OWN A 2005 GMC SIERRA 2500HD PICKUP. THE SPEEDOMETER ON THIS VEHICLE IS STARTING TO GO BAD AND WHEN I AM DRIVING DOWN THE HIGHWAY IT WILL GRADUALLY LOOSE INDICATED SPEED AND THEN EVENTUALLY GO TO ZERO. I AM AWARE THAT THERE IS CURRENTLY A RECALL OUT FOR THIS TYPE OF PROBLEM, BUT I HAD MY VEHICLE IN THE SHOP AND FOR SOME REASON MY VIN # DOES NOT FALL INTO THE RECALL LIST SO I HAVE NOT GOT IT REPAIRED AT THIS TIME. THE RECALL DOCUMENT THAT I FOUND IS #07187C: SPECIAL COVERAGE ADJUSTMENT - INSTRUMENT PANEL CLUSTER GAUGE NEEDLE FUNCTION -(MAR 20, 09), MY QUESTION IS THAT DOES YOUR AGENCY UPDATE THIS LIST FREQUENTLY OR ONCE IT IS OUT THAT IS ALL THAT WILL BE COVERED? *TR

Mileage: 40,250

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE SPEEDOMETER DISPLAYED THE ACCURATE SPEED DRIVEN. THE MANUFACTURER STATED THAT THE WARRANTY FOR THE SPEEDOMETER IS COVERED UP TO 75000 MILES AND THE FAILURE OCCURRED AT 86000 MILES WHICH WAS THE CURRENT MILEAGE. THE CONTACT IS CONCERNED ABOUT THE SAFETY RISK INVOLVED.

Mileage: 86,000

SUDDEN PROBLEMS WITH SPEEDOMETER. SPEEDOMETER STARTS AT BETWEEN 35 AND 60 MPH AT A COMPLETE STOP THEN GOES UP FROM THERE WELL PAST 120MPH WHEN TRAVELING NO FASTER THEN 60MPH. ALSO DOES NOT MOVE SMOOTHLY BUT RATHER VERY JUMPY. THIS IS A VERY WELL MAINTAINED TRUCK WITH 54K MILES ON IT. *TR

Mileage: 54,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. WHILE APPROACHING A STOP SIGN AT LESS THAN 15 MPH, THE SPEEDOMETER READ 40 MILES OVER THE ACTUAL MILEAGE TRAVELED. THE MANUFACTURER INITIATED A SAFETY IMPROVEMENT CAMPAIGN TO CORRECT THE FAILURE ON THE INSTRUMENT PANEL BUT THE MILEAGE ON HIS VEHICLE WAS OUTSIDE OF THE MANUFACTURER'S REQUIREMENTS. NO REPAIRS WERE MADE TO CORRECT THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS UNDER 70,000 AND THE CURRENT MILEAGE WAS UNDER 90,000. UPDATED 12/07/09 *BF UPDATED 12/09/09.*JB

Mileage: 70,000

FAULTY SPEEDOMETER READINGS ON 2005 GMC SIERRA RESULTING IN DRIVING AT UNKNOWN SPEED! *TR

Mileage: 75,000

SPEEDOMETER OPERATION ERRATIC. IT SUDDENLY READS AT HALF THE ACTUAL SPEED (COMPARED TO GPS READING). THEN IT READS ZERO. OTHER GAUGES AND CRUISE CONTROL FUNCTION. WORKED FINE AFTER A RESTART BUT THEN IT STARTED READING ERRATICALLY AGAIN. *TR

Mileage: 58,000

REPLACED EVERY MODULE IN THE HEATER SYSTEM IN MY 05 GMC SIERRA SEVERAL TIMES, AND SO HAS JUST ABOUT EVERYONE ELSE I KNOW WHO OWNS ONE. NOW MY WIRING HARNESS BURNED WITHOUT BLOWING ANY FUSES. GM SHOULD HAVE A RECALL ON THIS, AND FIND THE PROBLEMS, AND FIX THEM, BEFORE EVERYONE WHO OWNS ONE GOES BROKE REPAIRING THEM. *TR

Mileage: 95,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. ON JUNE 5, 2009, THE SPEEDOMETER DISPLAYED INACCURATE READINGS. THE SPEEDOMETER READ 120 MPH WHEN THE VEHICLE WAS ACTUALLY BEING DRIVEN 45 MPH. THERE WERE NO PREVIOUS FAILURES WITH THE SPEEDOMETER. THE FAILURE MILEAGE WAS 60,000.

Mileage: 60,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT HEARD A CLICKING NOISE UNDERNEATH THE DASHBOARD. THE CAUSE OF THE FAILURE WAS DUE TO A MAGNETIC SWITCH SHORTAGE. THE DEALER STATED THAT THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIR COST. THE FAILURE MILEAGE WAS 52,000. UPDATED 04-23-09 *BF UPDATED 04/24/09.*JB

Mileage: 52,000

SPEEDOMETER WAS INTERMITTENTLY STICKING. (NEEDLE WOULD JUMP UP OR DOWN, NOT ROTATE SMOOTHLY WITH SPEED CHANGES. THIS PROBLEM LASTED APPROXIMATELY 2 WEEKS. THEN STARTED READING HIGH OR LOW BY UP TO 50MPH. THIS LASTED APPROXIMATELY 4 DAYS. THEN NEEDLE ROLLED OVER PAST THE 120 MARK AND STUCK THERE. NO REPAIRS HAVE BEEN MADE YET. *TR

Mileage: 63,854

WIRING HARNESS FROM BLOWER MOTOR TO RESISTOR PACK LOCATED IN THE HEATER COIL AREA UNDER THE DASH ON THE PASSENGER SIDE OF VEHICLE. THIS WAS REPAIRED BY THE DEALER ONCE OR TWICE BEFORE AS FAR AS WE CAN SEE. *TR

Mileage: 72,000

SPEEDOMETER STICKS AT OVER 70 MPH THEN WHEN YOU SHUT THE VEHICLE OFF IT GOES TO 120 AND NOT BACK TO 0 IT MAY SOMETIMES POINT TO THE ODOMETER WHICH IS DOWN AND ILL NOT MOVE BACK TILL YOU START AND STOP THE VEHICLE A NUMBER OF TIMES TO RESET TO 0. *TR

Mileage: 69,800

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT STATED THAT THE SPEEDOMETER WOULD OCCASIONALLY REMAIN AT ZERO OR DISPLAY 110 MPH. IT FAILED TO DISPLAY THE CORRECT SPEEDS. THE DEALER STATED THAT HER MODEL YEAR WAS NOT INCLUDED IN A RELATED RECALL. THE MANUFACTURER OFFERED NO ASSISTANCE; HOWEVER, THE CONTACT WAS ADVISED TO HAVE THE VEHICLE DIAGNOSED BEFORE THEY COULD MAKE ANY JUDGMENTS. THE RECALL NUMBER WAS UNKNOWN. THE CURRENT MILEAGE WAS 58,265 AND FAILURE MILEAGE WAS APPROXIMATELY 35,000.

Mileage: 35,000

SPEEDOMETER IS PEGGED AT 120MPH AND STOPS AT 30MPH. *TR

Mileage: 56,500

2005 GMC 2500HD SPEEDOMETER IS INACCURATE. GM IS UNWILLING TO FIX THE PROBLEM AT THEIR EXPENSE. THEY ARE COVERING THE 2003 AND 2004 MODELS ONLY. THAT MAKES VERY LITTLE SENSE TO ME AS THEY ARE OLDER MODELS. I HAVE NOTICED ON THE INTERNET, THAT THIS IS A WIDE SPREAD PROBLEM. *TR

SPEEDOMETER READS WRONG. WILL BE DOING 55 MPH AND THE SPEEDOMETER SAYS 120 MPH. AT A STOP IT SAYS I AM DOING 80 MPH. GMC WANTS OVER $500 TO FIX THIS. I AM NOT ALONE IN MY COMPLAINT THERE ARE HUNDREDS, IF NOT THOUSANDS OF OTHERS. CHECK OUT THIS WEBSITE AND SEE WHAT OTHERS ARE SAYING: HTTP://WWW.TOPIX.COM/FORUM/AUTOS/CHEVROLET-TAHOE/T2BGKBGI55EKNU77C *JB

Mileage: 50,500