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2004 GMC Sierra Denali

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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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

Limited mileage data: 10 of 11 reports include usable mileage. There isn’t enough coverage to show a useful chart.

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.

  • Service Brakes. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes, Hydraulic. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports0 fire reports1 injury reports

Service Brakes complaints

3 reports
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108,000 miles · Jul 17, 2014
Power TrainService Brakes

I WAS DRIVING DOWN ROUTE 24 IN LEWES, DELAWARE APPROACHING A YELLOW LIGHT WHEN THE CAR IN FRONT OF ME STOPPED. I APPLIED THE BRAKES AND THEY COMPLETELY FAILED DESPITE PUTTING THE PEDDLE ALL THE WAY TO THE FLOOR. I WAS FORCED TO VEER ONTO THE SHOULDER THEN INTO A FARMERS FIELD IN ORDER TO SLOW THE TRUCK DOWN ENOUGH TO FORCE IT IN…

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I WAS DRIVING DOWN ROUTE 24 IN LEWES, DELAWARE APPROACHING A YELLOW LIGHT WHEN THE CAR IN FRONT OF ME STOPPED. I APPLIED THE BRAKES AND THEY COMPLETELY FAILED DESPITE PUTTING THE PEDDLE ALL THE WAY TO THE FLOOR. I WAS FORCED TO VEER ONTO THE SHOULDER THEN INTO A FARMERS FIELD IN ORDER TO SLOW THE TRUCK DOWN ENOUGH TO FORCE IT INTO PARK. APPARENTLY THE HYDRAULIC BRAKE LINES ON THESE TRUCKS ARE COMPLETELY EXPOSED TO THE ELEMENTS AND HAVE A HISTORY OF FAILING. ONCE THAT HAPPENS, THE REAR CALIPERS LOCK UP AND THERE ARE NO BRAKES AT ALL SWITCH CAN CAUSE A CRASH. THERE IS NO WARNING GIVEN UNTIL THE HYDRAULIC LINE SNAPS AND THE FLUID IS RELEASED. MY TRUCK HAS NEVER BEEN IN AN ACCIDENT AND HAS LOW MILEAGE FOR ITS AGE. IT HAS ALWAYS BEEN WELL MAINTAINED AND IS NOT A WORK TRUCK BUT MERELY A PERSONAL VEHICLE. IN ADDITION, I AM ON MY THIRD TRANSMISSION DO TO THE POOR SELECTION GM MADE OF PUTTING THE S-10 PICK UP TRANSMISSION IN A SUBSTANTIALLY HEAVIER TRUCK. *TR

NHTSA ODI #10611180

86,000 miles · Aug 7, 2013
Service Brakes

TL* THE CONTACT OWNS A 2004 GMC SIERRA DENALI. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 5 MPH, THE BRAKE PEDAL WAS ABLE TO BE FULLY DEPRESSED AND THE BRAKE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS FOUND THAT THE BRAKE LINES WERE CORRODED. THE CONTACT ALSO MENTIONED THAT THE FAILURE WAS …

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TL* THE CONTACT OWNS A 2004 GMC SIERRA DENALI. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 5 MPH, THE BRAKE PEDAL WAS ABLE TO BE FULLY DEPRESSED AND THE BRAKE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS FOUND THAT THE BRAKE LINES WERE CORRODED. THE CONTACT ALSO MENTIONED THAT THE FAILURE WAS EXPERIENCED TWICE. THE VEHICLE WAS BEING REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 86,000.

NHTSA ODI #10534022

65,000 miles · Jun 7, 2012
Service Brakes

FRONT BRAKE LINE FAILURE DUE TO CORROSION, IN JUNE 2012 HAVE TO REPLACE ENTIRE BRAKE LINE SYSTEM. *JS

NHTSA ODI #10460940

Official recalls

0

No 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

0

No exact-year investigations in this snapshot.