IllustrationFAULTY SPEEDOMETER READINGS ON 2005 GMC SIERRA RESULTING IN DRIVING AT UNKNOWN SPEED! *TR
2005 GMC Sierra 2500
Owner reports · Recalls · Investigations
More warning signs than most Sierra 2500 years
Owner complaints for the 2005 GMC Sierra 2500 are substantially higher than the model-year median of 46.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sierra 2500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
120–25K
1925–50K
3250–75K
1875–100K
16100–150K
7150K+
104 reports with mileage · 11 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 42 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
4 crash reports6 fire reports3 injury reports
Electrical System complaints
42 reportsSPEEDOMETER 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
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
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.
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
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. …
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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
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
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
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.
SPEEDOMETER IS PEGGED AT 120MPH AND STOPS AT 30MPH. *TR
Official recalls
108V519000 · Equipment Adaptive/mobility
Oct 6, 2008
MOBILITYWORKS IS RECALLING 133 MY 2005-2006 FORD E250, MY 2000, 2004-2006 E350, MY 2000, 2005 E450, MY 2005-2006 GMC 2500, GMC 3500, AND MY 2006 DODGE 2500 VANS EQUIPPED WITH RICON PLATFORM STYLE WHEELCHAIR LIFTS. THESE LIFTS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 403, "PLATFORM LIFT SYSTEMS FOR MOTOR VEHICLES." THE ANTI-STOW INTERLOCK MAY NOT DETECT THE PRESENCE OF A WHEELCHAIR OR MOBILITY AID USER. THE PRESSURE SENSING SWITCH THAT DETECTS THE PRESENCE OF WEIGHT ON THE PLATFORM WAS NOT ADJUSTED TO THE NECESSARY SENSITIVITY LEVEL. THE LIFT COULD STOW EVEN THOUGH SOMEONE OR SOMETHING IS STILL ON THE LIFT.
Consequence & remedy
Consequence: A LIFT OCCUPANT CAN BE INJURED SHOULD THE LIFT BEGIN TO STOW UNINTENTIONALLY.
Remedy: MOBILITYWORKS IS WORKING WITH RICON TO CORRECT THE WHEELCHAIR LIFTS FREE OF CHARGE (PLEASE SEE 07E097). OWNERS MAY CONTACT RICON AT 1-818-267-3000 OR MOBILITYWORKS AT 1-800-769-8267.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.