2017 Toyota Prius Engine Problems
7 owner-reported engine complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (7)
Your engine is leaking coolant into the exhaust system and engine oil, which has caused the engine to stop running unexpectedly and fail completely. This happens when coolant mixes with motor oil, which damages the engine. The fix will likely require replacing the damaged engine or having a mechanic diagnose and repair the internal leak source, such as a failed gasket or head crack.
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While driving slowly out of a parking lot at 10 MPH, your Prius suddenly lost power and made unusual noises, with warning lights appearing on the dashboard. The vehicle wouldn't restart and had to be towed to the dealer, where technicians found that the head gasket had failed and damaged the engine, requiring a complete engine replacement. Both the Toyota dealership and an independent mechanic confirmed the same diagnosis. Since your vehicle was out of warranty at approximately 80,000 miles, Toyota declined to cover the repair.
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Your car's air vents are blowing cold air while driving, and your check engine light is on. The dealer found that coolant is leaking into your exhaust pipe, which is why you've been needing to refill the coolant reservoir every few days. The fix will likely involve replacing the front exhaust pipe to stop the coolant leak.
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Your Prius displayed a dashboard message indicating the grille shutter was inoperable starting in March 2024. Toyota dealerships refused to cover repairs under available service bulletins and warranty coverage, even though your vehicle was within the California emissions warranty limit of 150,000 miles. You ended up paying out-of-pocket for diagnostics, repairs including a water pump and head gasket replacement, and a rental car while the vehicle was being fixed.
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Your dashboard warning light indicates your grille shutter (part of the emissions system) isn't working properly. Even though Toyota confirmed a recall applies to your vehicle at no charge, the dealer refused to perform the repair after three visits and instead charged you $200 for diagnostics. Since the initial problem wasn't fixed, you're now seeing a second warning about your hybrid system overheating, your car has stalled on the freeway, and your fuel economy has worsened. The repair will likely involve the dealer replacing or repairing the grille shutter motor and related components, which they should do under recall at no cost.
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TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. WHILE DRIVING 65 MPH, THE VEHICLE LOST POWER. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO LONGO TOYOTA (3534 N PECK RD, EL MONTE, CA 91731, (855) 415-6497), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 25,825. THE VIN WAS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. THE CONTACT RECEIVED A RECALL NOTIFICATION FOR NHTSA CAMPAIGN NUMBER: 18V579000 (ENGINE). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. TOYOTA CERTIFIED AT CAPITAL PLAZA (6100 ANNAPOLIS RD, LANDOVER, MD 20784, (301) 772-6900) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PART WOULD BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.