2003 Toyota 4Runner: Reliability Data

Source: NHTSA — 718 complaints
718
Total Complaints
128,000mi
Median Mileage
STRUCTURE:BODY
Top Issue
22
Crash Reports

When Do Complaints Happen?

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

89,197 25th Percentile
128,000 Median Mileage
166,692 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE:BODY
246
SUSPENSION
107
UNKNOWN OR OTHER
97
SERVICE BRAKES
44
STEERING
31
VEHICLE SPEED CONTROL
23
STRUCTURE
17
SERVICE BRAKES, HYDRAULIC
17
POWER TRAIN
14
WHEELS
11

Severity Assessment

22
Crashes
0
Fires
12
Injuries
0
Deaths

Sample Complaint Reports

"FOUL SMELLING EXHAUST - AMMONIA SMELL - VERY STRONG ON ACCELERATIONS UPHILL OR FREEWAY ON RAMPS. *JB"
"SUNROOF BROKE IN OPEN POSITION. COST $1600 TO REPAIR. CAR WAS PURCHASED IN FEBRUARY 2006. *JB"
"DT*: THE CONTACT STATED WHILE DRIVING 40 MPH UPHILL, A STRONG ODOR WAS NOTICED. THERE WERE NO WARNING LIGHTS ILLUMINATED PRIOR TO THE INCIDENT. THE DEALERSHIP WAS CONTACTED, WHO DETERMINED THE CATALYTIC CONVERTER WAS PRODUCING THE ODOR. THE EXTENDED WARRANTY COVERED THE REPLACEMENT. ALSO, THE CO..."

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