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2003 GMC GMC Truck

Owner reports · Recalls · Investigations

Limited comparison data

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

About this comparison →
18Owner complaints

Model-year median: 5

0Recall campaigns

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0Investigations

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How this year compares

Owner complaints by model year

Other model years Selected year
13
20002
20019
200218
2003
Compare all GMC Truck years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Power Train
6Electrical System
3Engine And Engine Cooling
3Service Brakes, Hydraulic
2Tires
2
All reported categories
Equipment
1Exterior Lighting
1Fuel System, Other
1Parking Brake
1Steering
1Structure
1Vehicle Speed Control
1

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: 14 of 18 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.

  • Power Train. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Vehicle Speed Control complaints

1 reports
Clear category filter
42 miles · Jun 4, 2003
Vehicle Speed Control

PURCHASED 2003 GMC SIERRA DENALI WITH THE 6.0L ENGINE. THE ACCELERATOR PEDAL CAN BE DEPRESSED PART WAY WITHOUT ANY CHANGE TO THE ENGINE RPMS, CAUSING THE DRIVER TO PRESS THE PEDAL EVEN FURTHER. THIS COULD BE DANGEROUS: A) DELAYED VEHICLE RESPONSE WHEN DEPRESSING GAS PEDAL, B) DRIVER DEPRESSING THE PEDAL TOO FAR CAUSING THE VE…

Read full complaint

PURCHASED 2003 GMC SIERRA DENALI WITH THE 6.0L ENGINE. THE ACCELERATOR PEDAL CAN BE DEPRESSED PART WAY WITHOUT ANY CHANGE TO THE ENGINE RPMS, CAUSING THE DRIVER TO PRESS THE PEDAL EVEN FURTHER. THIS COULD BE DANGEROUS: A) DELAYED VEHICLE RESPONSE WHEN DEPRESSING GAS PEDAL, B) DRIVER DEPRESSING THE PEDAL TOO FAR CAUSING THE VEHICLE TO LURCH FORWARD. TOOK THE VEHICLE TO THE DEALER, RESPONSE WAS THAT THIS IS WITHIN SPECS. NOT ALL 2003 SIERRA DENALI'S ARE LIKE THIS, SOME HAVE IMMEDIATE RESPONSE WHEN DEPRESSING THE PEDAL. *NLM

NHTSA ODI #10021014

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.