"How reliable is the 2001 Gmc Sierra 2500?"

"Based on 171 NHTSA complaints, the 2001 Gmc Sierra 2500 has a median complaint mileage of 66500 miles. The most common issue is SERVICE BRAKES, HYDRAULIC."

"What are common problems with the 2001 Gmc Sierra 2500?"

"The most frequently reported component in NHTSA complaints for the 2001 Gmc Sierra 2500 is SERVICE BRAKES, HYDRAULIC, accounting for a significant portion of the 171 total complaints filed."

2001 Gmc Sierra 2500: Reliability Data

Source: NHTSA — 171 complaints

171

Total Complaints

66,500mi

Median Mileage

SERVICE BRAKES, HYDRAULIC

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

40,437 25th Percentile

66,500 Median Mileage

123,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES, HYDRAULIC

ENGINE AND ENGINE COOLING

SERVICE BRAKES

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

ENGINE

TIRES

UNKNOWN OR OTHER

TIRES:TREAD/BELT

STEERING

POWER TRAIN:AUTOMATIC TRANSMISSION

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHILE TRAVELING AT 40 MPH ANOTHER VEHICLE RAN A LIGHT AND CONSUMER'S VEHICLE HIT OTHER VEHICLE. UPON IMPACT, NONE OF THE FRONTAL AIRBAGS DEPLOYED. *AK NLM"

"RIGHT/ REAR FIRESTONE STEEL-TEX TIRE , SIZE: LT245/75R16, DOT: VN11V1C4800 IS STARTING TO SHOW SIGNS OF DEFORMATION IN SIDEWALL. TIRE IS ORIGINAL EQUIPMENT , AND HAS APPROXIMATELY 7,000 MILES ON IT. DEFORMATION IS APPROXIMATELY 2 TO 3 INCHES IN LENGTH. *JG *AK"

"WHEN STARTING UP VEHICLE CONSUMER CAN HERE KNOCKING NOISES COMING FROM MOTOR. ALSO RATTLING NOISE COMING FROM UNDER VEHICLE. DEALER NOTIFIED. *AK THE ENGINE KNOCKS WHEN STARTING COLD. REAR PASSENGER SIDE DOOR MAKES NOISE. THE STEERING COLUMN SHOWS RUBBING SOUND. THE DRIVER SIDE SPEAKER FELL OFF. R..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28