What reliability score does the Toyota 4Runner get?

5.5 out of 10, scored from the 8 faults we document for this model and how severe each one is.

Is the 2010–2024 Toyota 4Runner reliable?

Scored from 8 documented faults · reviewed by the VehicleFaults Research Team

Quick answer

5.5/ 10

Mixed

On our documented-fault scoring the Toyota 4Runner rates 5.5 out of 10 · mixed. We hold 8 known faults for it and 2 are rated high severity, so the risk is real but contained. The weak points cluster around drivetrain, interior and engine. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.

Verdict · Negotiate · budget for the known faults

What the score is built from

Critical: 0
High: 2
Medium: 3
Low: 3

Weak points cluster around drivetrain, interior, engine, cooling.

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The faults that decide it

SuspensionHigh

Vehicle leaning to one side or KDSS warning light illuminated due to corroded valve block.

Typically appears: 50,000-80,000 miles
What to inspect: Park on a level forecourt and check for an uneven stance. Look under the chassis rail for heavy corrosion or fluid weeping around the KDSS accumulator block.
Typical repair: Suspension refresh (per axle) · £250–£1,100

DrivetrainHigh

Flashing 4WD dashboard lights and failure to engage four-wheel drive due to a seized transfer box actuator.

Typically appears: 60,000-90,000 miles
What to inspect: With the engine idling in neutral, cycle the selector dial to 4HI and 4LO. Ensure the 4WD indicator lights go solid within a few seconds rather than flashing continuously.
Typical repair: Driveline / differential repair · £450–£1,800

CoolingMedium

Water pump seepage.

Typically appears: 90,000+ miles
What to inspect: Look for coolant residue at the pump and check reservoir level.
Typical repair: Cooling component replacement · £220–£750

BrakesMedium

Steering wheel judder or pulling to one side under braking due to seized front brake caliper pistons.

Typically appears: 40,000-70,000 miles
What to inspect: During a short test drive, apply the brakes firmly from 40 mph to check for pulling. Visually inspect the front brake discs through the alloys for uneven scoring.
Typical repair: Brakes (discs, pads, caliper) · £200–£800

DrivetrainMedium

Cyclical humming or vibration felt through the floorpan at 30-50 mph caused by front differential needle bearing wear.

Typically appears: 30,000-60,000 miles
What to inspect: Drive at 40 mph in 2WD and feel for rhythmic vibrations. Shift into 4HI on a straight section; if the vibration instantly disappears, the needle bearing requires replacement.
Typical repair: Driveline / differential repair · £450–£1,800

Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.

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Quick answer

What the score is built from

The faults that decide it

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