Why it's a good car

The 2015 RX 350 (the last of the third generation) pairs a smooth, proven 3.5-liter V6 (2GR-FE) with a conventional six-speed automatic and a timing chain — no CVT, no turbo — under a quiet, comfortable, well-built luxury body. It rates well above average for reliability, running costs are reasonable for a luxury vehicle, and there is no systemic drivetrain weak point. As used luxury SUVs go, it's one of the safest bets.

Does it have a timing belt or a timing chain?

A timing chain, so there is no timing-belt interval or scheduled timing service to budget for.

What actually goes wrong

Genuinely little. Complaints are few — occasional minor items such as a check-engine light or an alignment note, plus ordinary wear. The V6 and automatic are long-lived, and these routinely pass 200,000 miles with basic care.

Open recalls — check the VIN, it's free

A recall worth confirming on the specific car involves fuel-delivery pipes, replaced free of charge. Recalls are VIN-specific — you cannot assume the status from the model year. Look up any 2015 RX 350's open recalls free by VIN at the U.S. National Highway Traffic Safety Administration (NHTSA); a Lexus dealer completes any open recall at no charge.

What a history report tells you — and what it doesn't

On a car like this, the individual car's history is most of the decision. A history report is a record of what got reported — title brands, reported accidents and damage, odometer readings over time, and service records where they exist. That is what separates a clean, maintained example from a salvage-title or flood car wearing the same badge.

What a history report is not is a forecast, and an absence of records is not proof of a clean past — plenty happens to a car that never gets reported. That is why the honest answer is always the pair: the documented history and an in-person inspection by a mechanic you trust, on the specific car.

The things to check before you buy

What would make you walk