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2018 Toyota Prius Recalls & Problems

2018 Toyota Prius: 1 official recall and 37 owner complaints to NHTSA, most often about unknown or other.

1
Recalls
37
Owner complaints
5
Crashes reported
0
Fires reported

Most common problems reported by owners

Unknown Or Other6 complaints

“I am writing to inform you about a very dangerous situation that occurred to me in June 2026 and that could pose a significant safety risk to other drivers who own 2016-17-18-19 Toyota Prius cars.  The risk stems from a defective part (the catalytic converter) that Toyota Corporation knew about in 2019 but failed to notify owners of those models.    Instead of issuing a recall and replacing the d…”

Exterior Lighting5 complaints

“Both taillamps holding moisture. Could cause electrical issues or fire. .. same year and model car have same reported issues and were fixed by manufacturer. This vehicle is the same but different level.”

Visibility/Wiper5 complaints

“MY WINDSHIELD HAS CRACKED TWICE WITHOUT BEING STRUCK BY AN OBJECT AND WITHOUT BEING NEAR ANOTHER VEHICLE. BOTH INCIDENTS OCCURRED DURING NORMAL HIGHWAY DRIVING. I WAS NOT SPEEDING OR DRIVING RECKLESSLY. BOTH TIMES REQUIRED THE REPLACEMENT OF THE WINDSHIELD AS THE CRACK QUICKLY SPREAD AND AFFECTED A GOOD PORTION OF THE WINDSHIELD. I AM REQUESTING REIMBURSEMENT FOR THE COST OF REPLACING THE WINDSHIE…”

Service Brakes4 complaints

“The contact owns a 2018 Toyota Prius. The contact stated that while in bumper-to-bumper traffic, the vehicle suddenly accelerated. The brake pedal was applied but failed to respond. The driver crashed into the front passenger side of the Lexus. The vehicle continuously moved forward. The contact was eventually able to pull over safely. The pre-collision malfunction warning light illuminated. The b…”

Vehicle Speed Control4 complaints

“The contact owns a 2018 Toyota Prius. The contact stated that while in bumper-to-bumper traffic, the vehicle suddenly accelerated. The brake pedal was applied but failed to respond. The driver crashed into the front passenger side of the Lexus. The vehicle continuously moved forward. The contact was eventually able to pull over safely. The pre-collision malfunction warning light illuminated. The b…”

Engine3 complaints

“I am writing to inform you about a very dangerous situation that occurred to me in June 2026 and that could pose a significant safety risk to other drivers who own 2016-17-18-19 Toyota Prius cars.  The risk stems from a defective part (the catalytic converter) that Toyota Corporation knew about in 2019 but failed to notify owners of those models.    Instead of issuing a recall and replacing the d…”

Engine And Engine Cooling3 complaints

“The contact owns a 2018 Toyota Prius. The contact stated that while having a routine oil change, the contact was made aware that there was no coolant in the coolant reservoir. No warning lights were illuminated. The contact was constantly adding coolant to the coolant reservoir; however, the following day the coolant reservoir was empty. The failure had occurred on several different occasions. The…”

Air Bags3 complaints

“The Airbag lights were lit, the person sitting with seatbelt on (flashing) and the person sitting with an inflated airbag in front of them. I ran an OBD2 scan on SRS and got code B1656. Driver seat belt buckle Left Hand. I Investigated the latch and found one wire was snapped off and a couple of inches shorter that the wire that was still connected. I have included 2 pictures of the back end of t…”

Official recalls (1)

ELECTRICAL SYSTEM:WIRING#18V579000 · 05/09/2018

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2018 Toyota Prius vehicles. A portion of the engine wire harness connected to the hybrid Power Control Unit (PCU), could contact the cover at this connection and wear, causing an electrical short circuit.

Fix: Toyota will notify owners, and dealers will inspect the engine wire harness assembly and replace it if damage is found. A protective sleeve or protective tape will be included to prevent any future damage. These repairs will be performed free of charge. The recall began October 30, 2018. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0T.

Recall repairs are free. Check a specific car with its VIN on our recall lookup or at NHTSA.gov .

Thinking of buying one? See its Deal Score and what repairs will really cost you.

Other Toyota Prius years

Source: U.S. National Highway Traffic Safety Administration (NHTSA) recall and complaint databases. Complaints are unverified owner reports.

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