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Engine coolingPart report

2018 Toyota RAV4 Hybrid Engine cooling Problems

Complaints
1about this part
Share
7%of 15 total for the year
Median mileage
115,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2018 Toyota RAV4 Hybrid, 7% of the 15 complaints for this model year. Where a mileage was given, the median is 115,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2018 Toyota Rav4 Hybrid. The contact stated that while receiving an oil change by a certified mechanic, the contact was informed that there was no coolant in the coolant reservoir. The mechanic confirmed that the radiator, hoses, and thermostat had failed and needed to be replaced. The vehicle was repaired; however, the failure persisted. While the contact was checking the coolant levels, the coolant level was always lower than expected. The contact was continually adding coolant. There was no warning light illuminated. …”

NHTSA complaint #11667638, filed 2025-06, 115,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201817%

Other parts of the 2018 Toyota RAV4 Hybrid

Other or unknown
5 complaints
Brakes
3 complaints
Fuel system
2 complaints
Transmission and drivetrain
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Air bags
1 complaints
Electrical system
1 complaints
Forward collision avoidance
1 complaints
Body and structure
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2018 Toyota RAV4 Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology