Why it's a good car

The 2015 Highlander is part of the third generation (2014–2019). The engine to want is the strong, proven 3.5-liter V6 with a conventional six-speed automatic and a timing chain — a genuinely long-lived combination (a base 2.7-liter four-cylinder was also offered, but the V6 is the one to have). It's roomy, comfortable, holds its value well, and consistently earns excellent reliability ratings. There is no systemic drivetrain failure to worry about.

Does it have a timing belt or a timing chain?

A timing chain on the V6, so there is no timing-belt interval or scheduled timing service to budget for.

What actually goes wrong

Genuinely little, and the complaints skew to electronics rather than the drivetrain:

Open recalls — check the VIN, it's free

The 2015 Highlander's recall history is light (a power-steering item among them), but recalls are VIN-specific — you cannot assume the status from the model year. Look up any 2015 Highlander's open recalls free by VIN at the U.S. National Highway Traffic Safety Administration (NHTSA); a Toyota 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