2016 TOYOTA PRIUS Complaints

The contact owns a 2016 Toyota Prius. The contact stated that while the vehicle was on and running, the ABS and traction control warning lights illuminated, and the messages "Braking Power Low - Stop in a Safe Place”, “See Owner's Manual", "Braking Power Low - Visit the Dealer", and "ABS Malfunction - See Dealer" were displayed. The contact stated that while driving approximately 35 MPH and depressing the brake pedal, the brake pedal was firm. The vehicle was taken to a dealer, and DTC: C14B6 was retrieved, indicating that the brake booster needed to be replaced. The vehicle was not repaired; however, the code was cleared. The vehicle was then taken to an independent mechanic, where the information from the dealer was relayed that the brake booster needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 100,028.

My name is [XXX] currently active duty military stationed in San Diego. Can you please check if my car VIN number [XXX] 2016 Toyota Prius C 103k miles still covered for brake booster malfunction code 1391. I have told they are extended warranty up to 10 yrs less 150k. Toyota dealer here seems not seeing any warranty coverage issues. Please help me look into this issues thank you. My contact number is [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Second time !!!! during ownership of car that brakes fail. Same problem as before Brake Actuator/Booster Failures: Multiple reports indicate issues with the ABS actuator or brake booster pump, leading to warning lights ("Braking power low", "ABS system malfunction").

On [XXX] at [XXX] I was backing out of a driveway when my 2016 Prius V5 accelerated on its own. When I applied the brakes, nothing happened. I hit a curb, which flattened the front passenger tire. In order to get the car to stop, I took it out of gear and put it in neutral. The car finally came to a stop. My speed while backing out of the driveway was less than 5 mph. It accelerated to about 15 mph. I was told that because the tire flattened due to the force of impact with the curb, Toyota considered it an accident. Toyota had me complete an "Unintended Acceleration" form so they could investigate the situation. A case number ([XXX]) was assigned. I was also told that I needed to contact Toyota's Brand Engagement Center at (800) 331-4331. Toyota assigned Engineering Analysis Associates (EAA) to perform a thorough inspection and read out the Event Data Recorder (EDR) of my vehicle at Findlay Toyota. Anne Chapman with EAA did the inspection and sent a copy of the report to me on 09/15/25, the day of the inspection. She suggested that I keep the copy because I may need it if I needed to contact an attorney. My insurance company, USAA, sent an adjuster to examine the extent of the damage. Findlay Collision Center completed the repairs on 09/26/25, which cost $3,433.92. The accelerator nor the brakes were addressed. On 10/09/25, Toyota provided a response to the incident: they were not at fault. They claimed operator error. Unintended acceleration and unresponsive brakes have been an issue with Toyota's in the past. At that time, instead of fixing the problem, they told dealerships to educate their buyers on how to take the car out of gear. Approximately one week after picking up my car from the repair shop, the vehicle accelerated on its own again. Fortunately, the brakes worked this time. Because I felt very unsafe, I got rid of the car shortly after that incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

P 175/65r15 I was driving on a slight curve on the I-10 in El Paso, TX when the rear bumper exploded. The car started swaying and swerving then I pulled over. I then realized that the tread on the tire was gone floating across the highway. The trie was bare with no tread with the bumper around the tire was gone. The explosion also caused the tail light to break.

Found coolant leak from heat exchanger into exhaust pipe. Looks like, T-SB-0135-19.

Car was driving fine one day and then while driving down the interstate I had the Pre collision system malfunction error, Brake light came on, Cruise will not operate, ABS light is on. After much research it seems Prius V has a common issue with brake booster faulting.

The headlights are either too bright or aimed poorly that it blinds oncoming traffic, who frequently flash their high beams at me. This occurs without any load in back and without me using the high beams. Can Toyota either adjust the bulbs or place a film on the headlights to prevent blinding oncoming traffic? Thank you!

Water pump failed without warning and caused irreparable damage to the engine ("blown" engine requiring replacement). Vehicle began to stall and not respond to attempted acceleration while traveling on 4 lane divided highway, 55 mph speed limit. One "Maintenance Required" message was received the previous week, but disappeared. This is the same message that appears for routine oil changes. No other warning messages were noted at the time of the incident, no unusual noises, and no smoke or other sign of overheating. Driver was able to steer vehicle to safety, but this failure could result in stranding on a busy, dangerous interstate highway. For such a critical piece of the vehicle (i.e., the water pump), there should be obvious warning message(s) and dedicated monitoring of the equipment.

Refer to TSB 0135-19 dealer denied repairing under the California emissions defect and performance warranty.