Jun 16, 2026EngineEngine & cooling
See attached letter for complaint
NHTSA ODI 11744400
Home · 2018 Hyundai Santa Fe Hybrid Hev · Complaints
What 108 owners told NHTSA about the 2018 Hyundai Santa Fe Hybrid Hev
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
All (108)Crash / fire / injury (10)Engine (53)Brakes (19)Transmission & drivetrain (10)Electrical system (9)Steering (8)Airbags (6)Fuel system (5)Speed control (5)Engine & cooling (3)Seats (3)
3 of 108 complaints match · Engine & cooling · clear filters
Oct 22, 2024Engine & cooling
The contact owns a 2018 Hyundai Santa Fe. The contact stated that while conducting a routine inspection on the vehicle, the contact noticed that the coolant was low in the coolant reservoir. The contact drove the vehicle to a local dealer where the vehicle was inspected. The contact was informed that the engine needed to be replaced. The dealer suggested that the vehicle remain at the dealer to be diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 58,000.
NHTSA ODI 11621300
Sep 5, 2024Engine & cooling
See attached document for complaint.
NHTSA ODI 11612886
Working with the data? Download all 108 complaints as CSV · fetched from NHTSA July 19, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Hyundai Santa Fe Hybrid Hev verdict →