2006 Toyota 4Runner
Common problems & what to know before you buy
Before you message the seller, know the documented failure patterns, repair cost exposure, and risk level for the 2006 Toyota 4Runner.
Recalls on the 2006 Toyota 4Runner
Air bags: side/window
The affected vehicles have an air bag control module that may be improperly programmed, causing the side curtain-shield-air bags to deploy…
Seats: seat heater/cooler
The electrical wiring in the seat heaters may be damaged when the seat cushion is compressed.
Vehicle speed control: accelerator pedal
THE ACCELERATOR PEDAL CAN GET STUCK IN THE WIDE OPEN POSITION DUE TO ITS BEING TRAPPED BY AN UNSECURED OR INCOMPATIBLE DRIVER'S FLOOR MAT.
2 more in the guide, with whether each one was done on the car you're looking at.
Source: NHTSA
What 381 owners reported
Source: NHTSA
2006 Toyota 4Runner at a glance
- Trims
- LimitedSportSR5
- Engine
- 4.0L 6-Cylinder, 4.7L 8-Cylinder
- Transmission
- Automatic 5-spd
- Drivetrain
- RWD, 4WD
- Fuel
- Gasoline
- Body style
- SUV
About the 4th Gen
The 2003-2009 Toyota 4Runner is the fourth generation of the mid-size SUV, built on a new frame shared in part with the Lexus GX and the FJ Cruiser. Engines were the 4.0-liter 1GR-FE V6 and, through 2009, the 4.7-liter 2UZ-FE V8, matched to a four- or five-speed automatic. Rear-wheel drive was standard, part-time four-wheel drive was offered on V6 models, and V8 models used a full-time four-wheel-drive system with a locking center differential. A third-row seat became available for the first time.
This generation introduced a significantly stiffer frame, rack-and-pinion steering, and the X-REAS cross-linked damper system on Sport Edition models. Compared to the third generation it is larger, heavier, and much better equipped, while retaining genuine low-range off-road hardware. The fifth generation that arrived in 2010 dropped the V8 and simplified the range around a single V6.
As a used buy, the fourth-generation 4Runner is valued for the combination of V8 availability and real off-road capability in a package that is still manageable in size. Frame corrosion remains the primary structural concern on trucks from salt regions. The X-REAS suspension system is expensive to repair and many owners convert to conventional dampers when it fails. Both engines have strong reliability records, and the V8 with the full-time four-wheel-drive system is the configuration enthusiasts seek out.
Other Toyota 4Runner years
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Frequently asked questions
What are the common problems with the 2006 Toyota 4Runner?
Owners have filed 381 complaints about the 2006 Toyota 4Runner with NHTSA, most often about the structure. There are 5 recall campaigns covering this model year. Squeezed's free research-backed buyer guide cross-references these against documented failure patterns and mileage-stage risks, sorted by severity, in about a minute.
Is the 2006 Toyota 4Runner reliable?
Reliability depends heavily on the specific configuration and how the car was maintained. Start with the 5 open recall campaigns on this model year and confirm the work was completed. Generate a Squeezed buyer guide for this exact vehicle to see a reliability snapshot, repair-cost exposure, and the questions to ask the seller before you buy.
Should I still get a pre-purchase inspection on a 2006 Toyota 4Runner?
Always. A Squeezed buyer guide is the triage step before the inspection: it shows you the documented failure patterns and what to check so you can decide which 2006 Toyota 4Runner listings are even worth a mechanic's time, then walk into the PPI knowing exactly what to look for.
Squeezed is a buyer guide based on public data and industry patterns, not a mechanical inspection. Always get a professional pre-purchase inspection before you buy.