MY 2003 GMC DENALI IS KNOCKING IN THE ENGINE AND DEALER SAY'S IT'S NORMAL AND WILL NOT REPLACE MOTOR AND MY EXTENDED WARRANTY IS GOING TO BE UP IN A FEW HUNDRED MILES WHAT DO I DO??? *JB
2003 GMC Yukon Denali
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2003 GMC Yukon Denali do not stand out strongly from the model-year median of 32.
About this comparison →How this year compares
Owner complaints by model year
Compare all Yukon Denali 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
58 reports with mileage · 14 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 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
72 reportsHINGE ON GLASS IN TRUNK DOOR BROKE. *TR
BRAKE FAILURE AT 34000 MILES. *AK
TL* - THE CONTACT OWNS A 2003 YUKON DENALI. THE CONTACT COMPLAINED ABOUT FRONT PASSENGER SEAT BELT PROBLEM. THE CONTACT STATED THAT THE SEAT BELT PERIODICALLY GOT N STUCK, AND ONE HAD TO UNBUCKLE IT AND TRY AGAIN. THIS FAILURE HAS BEEN HAPPENING FOR AT LEAST A YEAR. THE FAILURE OCCURRED 50 TIMES. THE FAILURE MILEA…
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TL* - THE CONTACT OWNS A 2003 YUKON DENALI. THE CONTACT COMPLAINED ABOUT FRONT PASSENGER SEAT BELT PROBLEM. THE CONTACT STATED THAT THE SEAT BELT PERIODICALLY GOT N STUCK, AND ONE HAD TO UNBUCKLE IT AND TRY AGAIN. THIS FAILURE HAS BEEN HAPPENING FOR AT LEAST A YEAR. THE FAILURE OCCURRED 50 TIMES. THE FAILURE MILEAGE AND CURRENT MILEAGE WERE BOTH 10,0000.*AK
HEADLIGHT FLICKER HAD DEALER WORK ON IT AND REPLACE ONE HEADLIGHT BUT THIS DID NOT CORRECT THE PROBLEM. DEALER SAID THIS WAS NORMAL. NOTICE THE FLICKER WHEN I GO OVER BUMPS OR WHEN CORNERING TO THE LEFT. *NM
THE SPEEDOMETER ON MY 2003 GMC YUKON DENALI, WITH 40,000 MILES, HAS QUIT WORKING. THROUGH RESEARCH IT APPEARS THAT MANY GM OWNERS ARE EXPERIENCING THE SAME PROBLEM AND GM INSISTS ON REPAIR COSTS RANGING FROM $500 TO $1000 DOLLARS. THE SPEEDOMETER IN MY VEHICLE HAS STOPPED WORKING WHILE DRIVING DOWN THEN HIGH WAY. THIS FAILURE C…
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THE SPEEDOMETER ON MY 2003 GMC YUKON DENALI, WITH 40,000 MILES, HAS QUIT WORKING. THROUGH RESEARCH IT APPEARS THAT MANY GM OWNERS ARE EXPERIENCING THE SAME PROBLEM AND GM INSISTS ON REPAIR COSTS RANGING FROM $500 TO $1000 DOLLARS. THE SPEEDOMETER IN MY VEHICLE HAS STOPPED WORKING WHILE DRIVING DOWN THEN HIGH WAY. THIS FAILURE CAN LEAD TO ACCIDENTS AS WELL AS FINANCIAL BURDENS WHEN HAVING TO PAY FOR SPEEDING TICKETS DUE TO THE FAILURE TO MAINTAIN A SAFE SPEED. AT THIS POINT NOTHING HAS BEEN REPAIRED AS I REFUSE TO PAY GM TO REPAIR A DEFECTIVE PART, WHICH THEY ARE AWARE OF. I UNDERSTAND THAT A FATALITY HAS TO OCCUR BEFORE THE NTHSA AND/OR GM TO TAKE ACTION TO CORRECT THE PROBLEM. *NM
I HAVE A 2003 GMC YUKON DENALI. THE SPEEDOMETER ON MY VEHICLE IS FAULTY. AT ONE POINT I WAS DRIVING DOWN A RESIDENTIAL STREET AND MY SPEEDOMETER DISPLAY SHOWED THAT I WAS TRAVELING 120 MPH. MY WIFE RECEIVED A SPEEDING FOR TRAVELING 70 MPH IN A 50 MPH ZONE. AT THE TIME THE SPEEDOMETER INDICATED THAT SHE WAS ONLY TRAVELING 50 MPH.…
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I HAVE A 2003 GMC YUKON DENALI. THE SPEEDOMETER ON MY VEHICLE IS FAULTY. AT ONE POINT I WAS DRIVING DOWN A RESIDENTIAL STREET AND MY SPEEDOMETER DISPLAY SHOWED THAT I WAS TRAVELING 120 MPH. MY WIFE RECEIVED A SPEEDING FOR TRAVELING 70 MPH IN A 50 MPH ZONE. AT THE TIME THE SPEEDOMETER INDICATED THAT SHE WAS ONLY TRAVELING 50 MPH. THIS HAS BEEN A PROBLEM BECAUSE WHEN DRIVING THE VEHICLE WE NEVER REALLY KNOW HOW FAST OR SLOW WE ARE ACTUALLY TRAVELING. HAVE SPOKE WITH OTHER CONSUMERS WHO OWN GMC YUKON AND THEY HAVE STATED THAT THEY HAVE ALSO EXPERIENCED PROBLEMS WITH THEIR SPEEDOMETER. *JB
I HAVE A 2003 YUKON WITH 70000 MILES. MY SPEEDOMETER HAS BECOME VERY ERRATIC. AT A FULL STOP IT READS ANYWHERE FROM 15 TO 70 MPH. WHEN DRIVING IT FREQUENTLY EXCEEDS THE 120 MPH MAXIMUM LIMIT EVEN THOUGH I AM TRAVELING WITH THE FLOW OF NORMAL TRAFFIC. I HAVE RESEARCHED THE PROBLEM AND HAVE FOUND THAT THIS IS A COMMON ISSUE WITH G…
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I HAVE A 2003 YUKON WITH 70000 MILES. MY SPEEDOMETER HAS BECOME VERY ERRATIC. AT A FULL STOP IT READS ANYWHERE FROM 15 TO 70 MPH. WHEN DRIVING IT FREQUENTLY EXCEEDS THE 120 MPH MAXIMUM LIMIT EVEN THOUGH I AM TRAVELING WITH THE FLOW OF NORMAL TRAFFIC. I HAVE RESEARCHED THE PROBLEM AND HAVE FOUND THAT THIS IS A COMMON ISSUE WITH GM SUVS AND TRUCKS MANUFACTURED IN THE 2003/2004 TIME FRAME. THIS IS AN EXTREME SAFETY ISSUE AS NOT RELIABLY KNOWING YOUR SPEED CAN AND WILL CAUSE TRAFFIC ACCIDENTS. THE GMC DEALER SAYS THE SOLUTION IS TO REMOVE THE EXISTING INSTRUMENT PANEL CLUSTER (IPC) AND TO INSTALL A NEW OR RECONDITIONED ONE AT A COST OF OVER $700.00. *JB
I OWN A 2003 GMC YUKON DENALI. I'M HAVING A PROBLEM WHERE THE SPEEDOMETER AND HORN ARE INTERMITTENTLY GOING OUT. I CAN DRIVE THE TRUCK ONE DAY AND IT'S FINE AND LATER THAT DAY OR DURING ANOTHER DRIVE, THE HORN WILL NOT WORK AND THE SPEEDOMETER WITH EITHER DO A 'JUMPING' MOTION OR WILL NOT MOVE AT ALL. THERE HAVE BEEN NO CRASH…
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I OWN A 2003 GMC YUKON DENALI. I'M HAVING A PROBLEM WHERE THE SPEEDOMETER AND HORN ARE INTERMITTENTLY GOING OUT. I CAN DRIVE THE TRUCK ONE DAY AND IT'S FINE AND LATER THAT DAY OR DURING ANOTHER DRIVE, THE HORN WILL NOT WORK AND THE SPEEDOMETER WITH EITHER DO A 'JUMPING' MOTION OR WILL NOT MOVE AT ALL. THERE HAVE BEEN NO CRASHES TO DATE. I CALLED MY LOCAL GMC DEALER AND THEY INFORMED ME THAT THEY HAD NOT HEARD OF THESE PROBLEMS WITH THE DENALI BUT THERE WAS A PROBLEM WITH THE HORNS ON THE SIERRA TRUCKS...*NM
AFTER NOTICING THAT MY 2003 YUKON DENALI HAD INTERMITTENT HEADLIGHTS/DASH LIGHTS DIMMING, I TOOK THE VEHICLE TO MY LOCAL DEALER TO HAVE IT CHECKED OUT. THEY PRESENTED ME WITH A DOCUMENT THAT STATED THE GM STATED THIS WAS NOT A MALFUNCTION AND WAS A NORMAL CONDITION. THERE IS NOTHING ABOUT THIS THAT IS "NORMAL". ANY TIME, AT N…
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AFTER NOTICING THAT MY 2003 YUKON DENALI HAD INTERMITTENT HEADLIGHTS/DASH LIGHTS DIMMING, I TOOK THE VEHICLE TO MY LOCAL DEALER TO HAVE IT CHECKED OUT. THEY PRESENTED ME WITH A DOCUMENT THAT STATED THE GM STATED THIS WAS NOT A MALFUNCTION AND WAS A NORMAL CONDITION. THERE IS NOTHING ABOUT THIS THAT IS "NORMAL". ANY TIME, AT NIGHT, A CURVE IS TAKEN AT ABOVE 35 MPH THE LIGHTS FLICKER. I HAD ALREADY PINPOINTED THAT IT HAD TO DO WITH THE VSES SYSTEM BECAUSE WHEN THE VSES IS TURNED OFF, THIS DOES NOT HAPPEN. WHEN A CURVE IS TAKEN AND THE FLICKERING OCCURS, THE VOLTAGE METER FOR THE BATTERY DROPS SUBSTANTIALLY AND THEN GOES RIGHT BACK TO NORMAL. THIS IS A DISTRACTION FOR THE DRIVER (MYSELF), ANY ONCOMING TRAFFIC, AND ANYONE THAT I AM BEHIND. THIS ABSOLUTELY NEEDS TO BE LOOKED INTO BEFORE IT CAUSES INJURY. *JB
Official recalls
0No recalls in this snapshot.
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
1DP05009 · Parking Brake Failure
Opened Dec 20, 2005 · Closed May 31, 2006
Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional; Parking Brake:conventional:mechanical
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Additional source detail variants (3)
Parking Brake:conventional
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Parking Brake:conventional:mechanical
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
Parking Brake
ODI'S REVIEW OF COMPLAINT DATA RECEIVED SINCE THE CLOSE OF EA04-011 REVEALED NO INDICATION THAT THE INVESTIGATION SHOULD BE RE-OPENED.MORE DETAILS CAN BE FOUND IN THE FEDERAL REGISTER NOTICE ENCLOSED IN THE DP05-009 PUBLIC FILE.ODI RESERVES THE RIGHT TO REOPEN THE INVESTIGATION IN THE FUTURE SHOULD CONDITIONS WARRANT.
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