NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
115 reports35,000 miles · Sep 3, 2008
Electrical System
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 ADV…
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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.
NHTSA ODI #10240764
56,500 miles · May 10, 2008
Electrical System
SPEEDOMETER IS PEGGED AT 120MPH AND STOPS AT 30MPH. *TR
NHTSA ODI #10227213
35,000 miles · Apr 25, 2008
Engine And Engine CoolingPower Train
TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHEN HE DRIVES HIS VEHICLE UPHILL WITH A TRAILER IN TOW, THE VEHICLE SLAMS INTO THIRD GEAR, JERKS, AND OVERHEATS. THE FAILURE OCCURS AT VARIOUS SPEEDS. THE FAILURE MILEAGE WAS 35,000. UPDATED 5/13/08 *CN THE CONSUMER STATED SEVERAL DEALERS WERE TELLIN…
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TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHEN HE DRIVES HIS VEHICLE UPHILL WITH A TRAILER IN TOW, THE VEHICLE SLAMS INTO THIRD GEAR, JERKS, AND OVERHEATS. THE FAILURE OCCURS AT VARIOUS SPEEDS. THE FAILURE MILEAGE WAS 35,000. UPDATED 5/13/08 *CN THE CONSUMER STATED SEVERAL DEALERS WERE TELLING HIM DIFFERENT THINGS AS TO WHAT WAS WRONG WITH THE VEHICLE. THE CONSUMER BELIEVED THERE IS A PROBLEM WITH THE ENGINE, TRANSMISSION AND TRANSFER CASE. ONE DEALER TOLD THE CONSUMER THE WRONG TRANSFER CASE WAS IN THE VEHICLE. A NEW SERPENTINE BELT WAS INSTALLED, THE FRONT DIFFERENTIAL WAS REPLACED, BECAUSE THE AXLE SHAFT WAS STUCK, THE AXLE SEAL WAS LEAKING AND BOTH HIGH PRESSURE LINES OF THE HYDROBOOST WERE LEAKING AS WELL. THE ENGINE LIGHT ILLUMINATED. THE CHARGE AIR COOLER WAS LEAKING RESIDUAL OIL FROM THE LOWER RIGHT CORNER. UPDATED 05/13/08.
NHTSA ODI #10225718
Mileage unknown · Feb 28, 2008
Electrical System
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
NHTSA ODI #10219557
21,850 miles · Jan 19, 2008
StructureCrashInjury
THERE IS A PIECE OF PLASTIC UNDER THE CENTER CONSOLE WHICH PROTRUDES ABOVE THE ACCELERATOR PEDAL. ESPECIALLY WHEN WARM, THE PLASTIC PIECE PROTRUDES FAR ENOUGH TO CATCH MY SHOE AND HOLD IT ON THE ACCELERATOR WHEN I TRY TO BRAKE. I DID HAVE A CRASH WHEN SOMEONE STOPPED QUICKLY IN FRONT OF ME, AND I LATER HAD A NEAR MISS WHEN I W…
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THERE IS A PIECE OF PLASTIC UNDER THE CENTER CONSOLE WHICH PROTRUDES ABOVE THE ACCELERATOR PEDAL. ESPECIALLY WHEN WARM, THE PLASTIC PIECE PROTRUDES FAR ENOUGH TO CATCH MY SHOE AND HOLD IT ON THE ACCELERATOR WHEN I TRY TO BRAKE. I DID HAVE A CRASH WHEN SOMEONE STOPPED QUICKLY IN FRONT OF ME, AND I LATER HAD A NEAR MISS WHEN I WAS TRYING TO BRAKE.
NHTSA ODI #10215445
69,500 miles · Nov 19, 2007
Service Brakes, HydraulicSteering
TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. WHILE DRIVING 65 MPH, THE STOPPING DISTANCE INCREASED WHEN THE BRAKE PEDAL WAS DEPRESSED AND THE STEERING WHEEL LOCKED. AS OF NOVEMBER 19, 2007, THE DEALER HAD NOT COMPLETED THEIR INSPECTION TO DETERMINE THE CAUSE OF THE FAILURE. THE VIN WAS UNKNOWN. THE CURRENT AND FAILURE MILE…
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TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500 HD. WHILE DRIVING 65 MPH, THE STOPPING DISTANCE INCREASED WHEN THE BRAKE PEDAL WAS DEPRESSED AND THE STEERING WHEEL LOCKED. AS OF NOVEMBER 19, 2007, THE DEALER HAD NOT COMPLETED THEIR INSPECTION TO DETERMINE THE CAUSE OF THE FAILURE. THE VIN WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 69,500.
NHTSA ODI #10209304
50,500 miles · Oct 25, 2007
Electrical System
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/CHEVROL…
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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
NHTSA ODI #10206849
12,000 miles · Apr 9, 2007
Engine And Engine Cooling
WHEN CLIMBING A SIGNIFICANT GRADE , 6%, WHILE TOWING 12.500# 5TH WHEEL ON A DAY WITH HIGH AMBIENT TEMPERATURE , 95% ENGINE TEMPERATURE, IMMEDIATELY BEGAN TO CLIMB AND REACHED ALMOST OVERHEAT WHEN I FORTUNATELY FOUND A PLACE TO PULL OFF THE ROAD. INCIDENT TOOK PLACE ON THE GRAPEVINE IN CA. IF I HADN'T BEEN ABLE TO PULL OVER I…
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WHEN CLIMBING A SIGNIFICANT GRADE , 6%, WHILE TOWING 12.500# 5TH WHEEL ON A DAY WITH HIGH AMBIENT TEMPERATURE , 95% ENGINE TEMPERATURE, IMMEDIATELY BEGAN TO CLIMB AND REACHED ALMOST OVERHEAT WHEN I FORTUNATELY FOUND A PLACE TO PULL OFF THE ROAD. INCIDENT TOOK PLACE ON THE GRAPEVINE IN CA. IF I HADN'T BEEN ABLE TO PULL OVER I WOULD HAVE BEEN STUCK IN TRAFFIC LANE WITH 18 WHEELERS RIGHT BEHIND ME. 2 DEALERS WERE UNABLE TO HELP.*AK
NHTSA ODI #10187387
Mileage unknown · Jan 24, 2007
Vehicle Speed Control
TL* - THE CONTACT STATED THAT THE 2005 GMC SIERRA 2500 HD SPEEDOMETER WAS NOT WORKING. WHILE DRIVING REGARDLESS OF SPEED, THE SPEEDOMETER WILL DISPLAY A HIGHER SPEED OTHER THAN WHAT HE WAS DRIVING. THE SPEEDOMETER SOMETIMES REGISTERS AS HIGH AS 120 MPH, AND WHEN DECREASING SPEED THE SPEEDOMETER JAMMED AND VARIED BETWEEN NO…
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TL* - THE CONTACT STATED THAT THE 2005 GMC SIERRA 2500 HD SPEEDOMETER WAS NOT WORKING. WHILE DRIVING REGARDLESS OF SPEED, THE SPEEDOMETER WILL DISPLAY A HIGHER SPEED OTHER THAN WHAT HE WAS DRIVING. THE SPEEDOMETER SOMETIMES REGISTERS AS HIGH AS 120 MPH, AND WHEN DECREASING SPEED THE SPEEDOMETER JAMMED AND VARIED BETWEEN NORMAL AND A HIGHER SPEED. THE CONTACT FILED A COMPLAINT, FILE # 71-473831886 WITH THE MANUFACTURER. THE CONTACT IS AWARE OF THE SAFETY RISK INVOLVED DUE TO THE SPEEDOMETER, AND THE FAILURE OCCURRED FREQUENTLY. *AK
NHTSA ODI #10179547
1 miles · Dec 29, 2006
Service Brakes, HydraulicSteering
TRUCK HAS BEEN IN DEALER NUMEROUS TIMES FOR SEVERE NOISE OF POWER STEERING PUMP, LOSS OF BRAKE BOOST AND STEERING ASSIST AT LOW SPEEDS. PUMP WAS REPLACED AND NOISED DISAPPEARED FOR JUST OVER 2 WEEKS AND STARTED AGAIN. DEALER EXPLAINED THAT GM IS AWARE OF PROBLEM, BUT IS ONLY TAKING CALLS ABOUT THE PROBLEM FROM ONE AREA CODE WH…
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TRUCK HAS BEEN IN DEALER NUMEROUS TIMES FOR SEVERE NOISE OF POWER STEERING PUMP, LOSS OF BRAKE BOOST AND STEERING ASSIST AT LOW SPEEDS. PUMP WAS REPLACED AND NOISED DISAPPEARED FOR JUST OVER 2 WEEKS AND STARTED AGAIN. DEALER EXPLAINED THAT GM IS AWARE OF PROBLEM, BUT IS ONLY TAKING CALLS ABOUT THE PROBLEM FROM ONE AREA CODE WHILE THEY TRY TO ISOLATE. DEALER THEN REPLACED THE STEERING GEAR WITH NO CORRECTION OF PROBLEM. AT A STANDSTILL, TURNING THE STEERING WHEEL ABOUT 3/4 TURN RESULTS IN COMPLETE LOSS OF STEERING ASSIST AND SOMETIMES BRAKE BOOST, PLUS EXCESSIVE PUMP NOISE. DEALER IS NOW TRYING TO TELL ME THIS IS NORMAL. THERE IS A TECHNICAL BULLETIN ON THIS PROBLEM. GM HAS INSTRUCTED DEALERS NOT TO REPLACE THE POWER STEERING PUMP. AS THEY HAVE RECEIVED TOO MANY PUMPS UNDER WARRANTY THAT APPEAR TO HAVE NO PROBLEM. DRIVING THE VEHICLE AT 1200 RPM AND STEERING RIGHT OR LEFT WILL GENERATE A GROANING NOISE THAT DROWNS CONVERSATION IN THE CAB AND AT TIMES RESULTS IN REDUCED OR FAILED BRAKE BOOST. THE SAME LOUD GROANING NOISE OCCURS WHEN SLOWING THE VEHICLE FROM HIGHWAY SPEEDS WITHOUT ANY TURNING OF THE STEERING WHEEL, AS THE ENGINE RPM FALLS THROUGH THE 1200 RPM RANGE. SOUNDS LIKE A HYDRAULIC SYSTEM WITH AIR IN THE SYSTEM, LOW FLUID OR BEING PUSH TO OVER-CAPACITY. GM IS NOT BEING RESPONSIVE TO THE EXCESSIVE NUMBER OF CUSTOMER COMPLAINTS. I KNOW OTHERS WITH THE SAME PROBLEM ON SEVERAL YEARS OF 2500HD DURAMAX TRUCKS. IT IS NOT AT ALL DIFFICULT TO FIND OTHERS WITH THIS EXACT SAME COMPLAINT. THE NOISE APPEARS TO BE AN UNDER CAPACITY HYDRAULIC SYSTEM FOR POWER STEERING AND BRAKE BOOST. GM IS EITHER IGNORING THE PROBLEM OR HOPING THE PROBLEM TRUCKS WILL EXPIRE WARRANTY. MORE OWNERS NEED TO COMPLAIN AND FORCE A RECALL TO REPAIR THIS DEFECT IN DESIGN. CONTRARY TO MY DEALER'S ASSERTION, THIS IS NOT NORMAL. I HAVE BEEN DRIVING LONG ENOUGH TO KNOW "NORMAL" AND A "PROBLEM DODGE" WHEN I SEE IT.
NHTSA ODI #10177349