1991 Toyota 4Runner: Reliability Data

Source: NHTSA — 55 complaints
55
Total Complaints
164,000mi
Median Mileage
ENGINE AND ENGINE COOLING:ENGINE
Top Issue
3
Crash Reports

When Do Complaints Happen?

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

153,832 25th Percentile
164,000 Median Mileage
222,243 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE AND ENGINE COOLING:ENGINE
17
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
2
POWER TRAIN:CLUTCH ASSEMBLY
2
WHEELS
2
STEERING:LINKAGES:ROD:RELAY:CONNECTING
2
TIRES:TREAD/BELT
2
TIRES
2
STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
2
POWER TRAIN:MANUAL TRANSMISSION
1
POWER TRAIN:DRIVELINE
1

Severity Assessment

3
Crashes
0
Fires
4
Injuries
0
Deaths

Sample Complaint Reports

"CYLINDER HEAD GASKET IS DAMAGED, LEAKING COOLANT. TT"
"WARPED FRONT BRAKE PADS/ROTORS, CAUSING VEHICLE TO VIBRATE WHEN BRAKING, REPLACED 3 AND SCHEDULED FOR REPLACEMENT 3-8-95. TT"
"REPLACED REAR WINDSHIEL WIPER ASSEMBLY. *AK"

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