"How reliable is the 2003 Toyota Tundra?"

"Based on 520 NHTSA complaints, the 2003 Toyota Tundra has a median complaint mileage of 105000 miles. The most common issue is STRUCTURE:BODY."

"What are common problems with the 2003 Toyota Tundra?"

"The most frequently reported component in NHTSA complaints for the 2003 Toyota Tundra is STRUCTURE:BODY, accounting for a significant portion of the 520 total complaints filed."

2003 Toyota Tundra: Reliability Data

Source: NHTSA — 520 complaints

520

Total Complaints

105,000mi

Median Mileage

STRUCTURE:BODY

Top Issue

Crash Reports

When Do Complaints Happen?

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

51,616 25th Percentile

105,000 Median Mileage

141,500 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE:BODY

AIR BAGS

SUSPENSION

UNKNOWN OR OTHER

STRUCTURE:FRAME AND MEMBERS

STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS

POWER TRAIN

STEERING

SERVICE BRAKES

STRUCTURE

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHILE DRIVING THERE WAS A NOISE HEARD COMING FROM UNDER THE HOOD. DEALER HAS INSPECTED THE VEHICLE AND COULD NOT DUPLICATE OR CORRECT THE PROBLEM. TS THE DEFECT WAS WITH THE TRANSFER CASE WHICH CAUSED VIBRATION AND REDUCTION IN SPEED. *JG"

"2003 TOYOTA TUNDRA 4WD WITH NOISE AND VIBRATION RESULTING FROM OIL VISCOSITY. PH"

"THE WHEELS RUSTED INSIDE ALL THE WHEEL WELLS. *JB MANUFACTURER/DEALER HAD DONE NOTHING, STATING THAT THE PROBLEM WAS DUE TO THE SEVERE WINTER AND REFUSED TO FIX UNDER WARRANTY. SCC"

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