Is the Toyota 4Runner Reliable? Here's the Honest Year-by-Year Answer
By Caropsy · July 1, 2026 · 5 min read
One of the few body-on-frame SUVs still in production, the 4Runner has earned a reliability reputation that borders on legendary. Owners routinely report 250,000 to 300,000 miles on original powertrains. The question isn't whether it's reliable — it's which years are the best deals on the used market.
A
Consistently reliable across almost every yearCaropsy overall grade for most years: A
Best years to buy used
2014–2022 (5th gen, proven)The 4.0L V6 from this era is one of Toyota's most proven engines. Low complaint rates, strong towing, minimal systemic failures. This is the generation to target — and the one that commands a premium for good reason.
2010–2013 (5th gen, early)Same solid 4.0L V6, slightly lower tech. More affordable on the used market with the same fundamental reliability. Excellent value if you don't need modern infotainment.
Years to think twice about
2003–2009 (4th gen, high mileage)Not unreliable — but at this age, rust, worn suspension components, and high mileage become real factors. Inspect carefully before buying any 4th gen over 200,000 miles.
💡 Screenshot the listing and grade it on Caropsy before you contact the seller — know the specific year's issues in 10 seconds.
Common problems to know
Frame rust (older models): Inspect underneath on any pre-2010 example.
Infotainment: The standard system is dated on older models — not a reliability issue but a daily-use annoyance.
Fuel economy: The 4.0L V6 averages 16–18 MPG. Not a surprise at this size but worth knowing.
Bottom line
The 4Runner is one of the few used SUVs where almost any year is a reasonable buy. The main risk isn't the mechanical — it's overpaying for the premium everyone knows it commands.