2009 Toyota 4Runner: Reliability Data

Source: NHTSA — 33 complaints
33
Total Complaints
23,000mi
Median Mileage
POWER TRAIN:AUTOMATIC TRANSMISSION
Top Issue
8
Crash Reports

When Do Complaints Happen?

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

3,500 25th Percentile
23,000 Median Mileage
79,400 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

POWER TRAIN:AUTOMATIC TRANSMISSION
7
ELECTRICAL SYSTEM
4
POWER TRAIN
3
STRUCTURE:BODY
2
AIR BAGS
2
FUEL SYSTEM, GASOLINE
2
ENGINE
2
UNKNOWN OR OTHER
2
STEERING
2
SUSPENSION
2

Severity Assessment

8
Crashes
1
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"I SAT IN THE REAR SEAT OF A 2010 TOYOTA 4RUNNER. I AM 6'1". I HAD CLEARANCE ABOVE MY HEAD. HOWEVER, THE ROOF IS DOMED ONLY ABOVE THE SEAT. WHEN I LEANED FORWARD MY HEAD CONTACTED THE ROOF. I BELIEVE SERIOUS HEAD INJURIES ARE POSSIBLE DUE TO THE INTERIOR DESIGN OF THIS VEHICLE FOR TALLER PASSENGERS. ..."
"I SAT IN THE REAR SEAT OF A 2010 TOYOTA 4RUNNER. I AM 6'1". I HAD CLEARANCE ABOVE MY HEAD. HOWEVER, THE ROOF IS DOMED ONLY ABOVE THE SEAT. WHEN I LEANED FORWARD MY HEAD CONTACTED THE ROOF. I BELIEVE SERIOUS HEAD INJURIES ARE POSSIBLE DUE TO THE INTERIOR DESIGN OF THIS VEHICLE FOR TALLER PASSENGERS. ..."
"I HAVE A 2001 TOYOTA 4RUNNER. THE REAR DIFFERENTIAL LEAKS OIL THROUGH PIN HOLES, AND FROM WHAT I HAVE READ, MINE IS NOT THE ONLY ONE. THE CAR BARELY HAS 100,000 MILES ON IT, AND THE DIFFERENTIAL SHOULD LAST AS LONG AS THE CAR. THE RISK IS THAT IT WILL RUN DRY, SEIZE, AND THE REAR WHEELS WILL LOCK..."

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