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ProblemsByVin Checklist / 2006-TOYOTA-4RUNNER

Pre-purchase · Buyer's checklist

2006 Toyota 4Runner inspection checklist

The 2006 Toyota 4Runner has 379 owner complaints with NHTSA across 6 component categories. Use this checklist before you put money down — every item below is grounded in the actual failure pattern on this vehicle, not generic advice.

1 Inspect the body

What to look for: Paint mismatch between panels (prior accident), rust on rocker panels and wheel wells, door alignment gaps that don't match side-to-side, weatherstrip wear. (115 owner complaints on this vehicle · typical repair $1,500 · failures cluster ~125,132 mi)

Panel gaps — should be even and consistent; tight on one side means body work
Trunk and hood weatherstrips for cracks
Inside the trunk, under the spare — water staining means a leak
Door hinge bolts for paint dust (telltale of door replacement)
VIN plate on the dash matches the VIN sticker on the door jamb

See full body report for this vehicle →

2 Inspect the suspension

What to look for: Bouncing after bumps, knocking over potholes, sagging on one corner, harsh ride with all the dampening gone. (54 owner complaints on this vehicle · typical repair $900 · failures cluster ~127,519 mi)

Bounce test — push down hard on each corner of the car; it should rebound once and settle, not bounce
Visible struts/shocks behind the wheels for oil leaks
Sway bar end links and bushings (common wear item, $40–$120 to fix)
Ride height — measure wheel-well to ground at all four corners; uneven = bad spring

On the test drive: Drive over a series of bumps or a railroad crossing — clunks point to worn end links, ball joints, or strut mounts.

See full suspension report for this vehicle →

3 Inspect the airbags

What to look for: Anything that looks, sounds, or smells different from peer vehicles of the same year and trim. (22 owner complaints on this vehicle · typical repair $1,100 · failures cluster ~104,279 mi)

Walk around and note any visible damage, wear, or aftermarket modifications
Open the hood and look for fresh fluid leaks, loose connectors, or recent part swaps
Sit in every seat and operate every control to confirm function

See full airbags report for this vehicle →

4 Inspect the steering

What to look for: Wandering on the highway, clunks when turning, slop in the wheel before the tires respond, power steering whine. (22 owner complaints on this vehicle · typical repair $700 · failures cluster ~64,956 mi)

Tire wear pattern — uneven wear across the tread means alignment or worn suspension
Power steering fluid level (where applicable — most newer vehicles are electric)
Tie rod boots and ball joint boots for tears
Steering wheel free play — should be less than 1 inch at the rim

On the test drive: On a smooth highway, take hands off briefly (when safe) — vehicle should track straight. Pulling left or right means alignment or worn front-end parts.

See full steering report for this vehicle →

5 Inspect the brakes

What to look for: Pulsing brake pedal, pulling to one side when braking, squealing or grinding, soft pedal that goes to the floor. (21 owner complaints on this vehicle · typical repair $450 · failures cluster ~64,961 mi)

Brake pad thickness (look through the wheel spokes — at least 4mm material)
Rotor surface — deep grooves or lip on the outer edge means resurface or replace
Brake fluid color in the reservoir — should be light amber, not dark brown
ABS warning light cycles off after start

On the test drive: Hard brake from 40 mph in a safe spot — pedal should be firm, stop should be straight. A pulse means warped rotors ($300–$600).

See full brakes report for this vehicle →

6 Inspect the powertrain

What to look for: Hesitation on takeoff, harsh or delayed shifts, vibration at highway speed, fluid leaks on the driveway under the engine bay or transmission pan. (20 owner complaints on this vehicle · typical repair $2,500 · failures cluster ~54,111 mi)

Transmission fluid color and smell — fresh ATF is red, brown or burnt smell is bad
Engine and transmission mounts (cracks or visible sag)
CV boots front (and rear on AWD) — any tears mean a $300–$800 axle replacement
Driveshaft U-joints and rear differential fluid level on RWD/AWD

On the test drive: Drive 15+ minutes including a freeway on-ramp at full throttle, a steep hill, and stop-and-go traffic. Listen for clunks on shifts, flares between gears, and shudders during light acceleration at 30–50 mph (torque converter symptom).

See full powertrain report for this vehicle →

7 Paperwork — before you sign

The seller's transparency on these tells you what kind of seller you're dealing with.

Title in seller's name (not "open title" or "signed by previous owner")
Service records — at least the last 24 months
VIN on the dash matches the door jamb sticker and the title
Run a paid vehicle history report (Carfax or AutoCheck) — accident, salvage, odometer rollback
Confirm any open recalls have been completed (NHTSA VIN lookup)
If financing, get the rate in writing before you set foot on the lot

Inspection items derived from 379 owner complaints and 0 active recall campaigns filed with NHTSA on the 2006 Toyota 4Runner. Category-specific guidance is written by ProblemsByVin contributors with ASE-certified mechanic review. This checklist is meant to surface known patterns — it doesn't replace a paid pre-purchase inspection by a qualified shop, which we recommend for any used vehicle priced over a few thousand dollars.

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