Which other parts do owners name in the same complaint?

Among the 1,229 owner complaints naming this part, thermostat is named in 11% of them, more than any other part.

Thermostat11%

Radiator5%

Head gasket5%

Timing chain3%

Owners name the thermostat most often in the same complaint, which is not proof that one caused the other. Ask the shop whether it checked the thermostat too, so you are not quoted twice for one visit.

Source: NHTSA owner complaint files · file downloaded 2026-10-05