1999 Chevrolet GMT 400 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
3 owner complaints analyzed
0 distinct recall campaigns
139,579 mi median reported failure mileage
Scope: 1999 model year. Data snapshot: . 2 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Fuel System, Gasoline:Storage:Tank Assembly is the most frequently named component, appearing in 1 of 3 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 66.7% |
| Fuel system concerns | 1 | 33.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Fuel System, Gasoline:Storage:Tank Assembly | 1 |
| Service Brakes, Hydraulic | 1 |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 1 |
Fuel System, Gasoline:Storage:Tank Assembly: 1; Service Brakes, Hydraulic: 1; Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 1 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 1
75,000 to 99,999 miles has the most reports with usable mileage (1). 1 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2002 | 1 |
| 2006 | 1 |
| 2011 | 1 |
2002: 1; 2006: 1; 2011: 1
Pattern summary
Fuel System, Gasoline:Storage:Tank Assembly leads the component reports. Braking behavior appears in 2 complaint narratives. Fuel system concerns appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10173188 · 2006-11-11 (November 11, 2006)
I HAVE A 1999 CHEVROLET GMT-400 PICKUP WITH ABS BRAKES. THE ABS SENSOR IS DEFECTIVE, CAUSING THE ABS TO ACTIVATE AT LOW SPEEDS,SUCH AS IN PARKING LOTS. I HAVE HAD A LOT OF CLOSE CALLS DUE TO THIS MANUFACTURING DEFECT. GENERAL MOTORS CORPORATION HAD A RECALL ON 1999 CHEVY SILVERADOS DUE TO THIS MANUFACTURING DEFECT. THEY REMOVED AND CLEANED THE ABS SENSORS AND COATED THEM WITH A SUBSTANCE TO PREVENT FUTURE RUSTING OF THE COMPONENTS. I WENT TO A CHEVROLET DEALERSHIP TO CHECK ON THIS RECALL FOR MY VEHICLE. I WAS TOLD IT WAS NOT COVERED UNDER THE …
Owner-reported narrative. 90,000 miles reported. Look up ODI 10173188 at NHTSA ↗
Owner report 10434253 · 2011-11-04 (November 4, 2011)
PRESSED THE BRAKES AND THE PEDAL WENT TO THE FLOOR. AFTER INSPECTION I FOUND THAT THE REAR STEEL BRAKE LINE FAILED. IF I HAD NOT BEEN PULLING DOWN THE DRIVEWAY WHEN THIS HAPPENED AND ON THE STREET I MAY HAVE CRASHED AS A RESULT. THE FAILURE POINT IS RIGHT BESIDE THE DIESEL TANK ON THE FRAME RAIL. *TR
Owner-reported narrative. 189,157 miles reported. Look up ODI 10434253 at NHTSA ↗
Owner report 565421 · 2002-06-12 (June 12, 2002)
CONSUMER NOTICED GAS DRIPPING FROM THE TANK, TOOK TO SERVICE STATION HE WAS TOLD THAT THE TANK WAS SEVERELY DENTED AND HAD RUPTURED, REPLACED FUEL TANK. A FEW WEEKS LATER THE SAME THING HAPPENED AND FUEL REPLACED FUEL TANK. *YD
Owner-reported narrative. Look up ODI 565421 at NHTSA ↗