2012 Toyota Prius Plug-In Hybrid Problems

1. The ABS system failed upon inspection at a dealership. Specifically the ABS accumulator and booster. 2. The ABS system put us at risk by failing prematurely, and traction control and ABS functions seemingly stopped working while driving on the road. 3. Yes, dealership confirmed the issue with a full diagnostic, and the part has a customer support program bulletin/TSB out for this specific issue. 4. inspected by manufacturer dealership service center. 5. Lights such as the parking brake, ABS, and (!) lit up while driving and the failure occurred at the same time.

The contact owns a 2012 Toyota Prius Plug-in Hybrid. The contact stated that while driving down a winding road, the brake warning light and brake message suddenly activated and while depressing the brake pedal, the pedal extended to the floorboard and the vehicle would not immediately stop. The vehicle was later taken to the local service center who diagnosed that the brake booster, brake master cylinder, and brake booster pump assembly were faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The contact was informed that the vehicle did not qualify for the manufacturers extended coverage regarding the failure. The failure mileage was 130,000.

NOTHING HAPPENED YET, BUT I AM CONCERNED ABOUT NUMEROUS REPORTS OF THE INVERTER FAILING AND CAUSING SUDDEN LOSS OF POWER. I UNDERSTAND THIS IS STILL HAPPENING DESPITE AFFECTED CARS HAVING RECEIVED A SOFTWARE UPDATE TO "PREVENT" THE ISSUE. DURING AN EMERGENCY, REGENERATIVE SYSTEMS PREVENT THESE CARS FROM SWIFTLY COASTING OUT OF THE TRAVEL LANE AS OTHER CARS WOULD DO. INSTEAD, THE CAR WILL ACT LIKE THE BRAKES HAVE BEEN SLAMMED ON, CAUSING A SERIOUS HAZARD. I READ ABOUT THIS HERE HTTPS://TOYOTATALK.COM/TOYOTA-PRIUS-HYBRID-INVERTER/

THE ACTUATORS FOR THE LOCKS ON 3 OF THE DOORS HAVE FAILED OVER TIME. I HAVE REPLACED THE FRONT-DRIVER SIDE ACTUATOR ONCE PREVIOUSLY AND IT STARTED TO FAIL FIRST. WHEN I LOCK THE CAR, I ONLY HAVE ONE DOOR THAT UNLOCKS WHICH IS THE REAR-PASSENGER DOOR. IF IT FAILS, I WILL BE LOCKED OUT OF THE CAR. IT SEEMS WRONG THAT I CANNOT UNLOCK MY CAR WELL. IT SEEMS WRONG THIS HAS FAILED MULTIPLE TIMES ON A 6YR OLD CAR. IT IS DEFECTIVE AND POTENTIALLY UNSAFE.

I was driving less than 55mph on freeway on February 5, 2024 when my vehicle went into an out of control spin, Brakes did not seem to work and unable to control vehicle until hit center divider on freeway, Spun 180 degrees and kept going back with no braking until hit center divider.

I'M DRIVING AROUND 60MPH AND SUDDENLY THE ELECTRONIC STABILITY CONTROL LIGHT WENT ON AND THE ALL WHEELS SUDDENLY BRAKED. IT'S JUST SO DANGEROUS, GOOD THING NO BODY BEHIND ME AT THAT MOMENT. THIS HAPPENED SEVERAL TIMES. THE CAR COULD BRAKE SUDDENLY BY ITSELF WITHOUT WARNING EVEN WHEN IT'S HIGH SPEED OR LOW SPEED. THERE'S A CLICKING NOISE UNDER THE DASHBOARD. THIS IS BECAUSE OF THE MALFUNCTION OF ELECTRONIC STABILITY CONTROL IN THE PRIUS. IT COULD CAUSE THE CAR BRAKE BY ITSELF WITHOUT WARNING AND COULD CAUSE BIG ACCIDENT, ESPECIALLY IN THE FREEWAY.

AUTO STOPPED. ENGINE RUNNING. BRAKE PEDAL PRESSED. TRANSMISSION IN DRIVE. WHEN OPENING DRIVER DOOR AND RELEASING BRAKE PEDAL, CAR MOVES FORWARD. VIN INCLUDED IN ATTACHED FILE.

ENGINE OIL GETTING TO THE INTAKE MANIFOLD. AND FILLING UP WITH OIL. THROTTLE BODY GETS REALLY DIRTY WITH OIL. IN TURN THE ENGINE BURNS OIL. WHICH CLOGS UP THE EGR SYSTEM. THE ENGINE WOULD OVER HEAT WHICH COULD CAUSE THE HEAD GASKET TO BLOW. DURING WINTER MONTHS. ENGINE RESTARTS WOULD BE HARSH BECAUSE IT WOULD HAVE CONDESAION ON THE CYCLINDER THIS COULD CAUSE THE ENGINE TO BLOW. BROKEN CONNECTING RODS. BLOWN HEAD GASKET ALL SORT OF THINGS COULD HAPPEN FROM HAVING OIL GET TO THE INTAKE MANIFOLD. STARTING FROM 2010 THESE PRIUS SUFFER FROM THIS AND TOYOTA HASNT DONE ANYTHING OTHER THEN SUPPSODELLY REDESIGNING THE INTAKE MANIFOLD. WHICH IS THE SAME. TOYOTA JUST DONT WANT TO DEAL WITH IT.

ENGINE OIL GETTING TO THE INTAKE MANIFOLD. AND FILLING UP WITH OIL. THROTTLE BODY GETS REALLY DIRTY WITH OIL. IN TURN THE ENGINE BURNS OIL. WHICH CLOGS UP THE EGR SYSTEM. THE ENGINE WOULD OVER HEAT WHICH COULD CAUSE THE HEAD GASKET TO BLOW. DURING WINTER MONTHS. ENGINE RESTARTS WOULD BE HARSH BECAUSE IT WOULD HAVE CONDESAION ON THE CYCLINDER THIS COULD CAUSE THE ENGINE TO BLOW. BROKEN CONNECTING RODS. BLOWN HEAD GASKET ALL SORT OF THINGS COULD HAPPEN FROM HAVING OIL GET TO THE INTAKE MANIFOLD. STARTING FROM 2010 THESE PRIUS SUFFER FROM THIS AND TOYOTA HASNT DONE ANYTHING OTHER THEN SUPPSODELLY REDESIGNING THE INTAKE MANIFOLD. WHICH IS THE SAME. TOYOTA JUST DONT WANT TO DEAL WITH IT.

I HAVE HYBRID SYSTEM WARNING MESSAGE & PCS SYSTEM WARNING MESSAGE ON MY CAR I HAVE TAKEN IT TO DIFFERENT DEALERSHIP IN DALLAS TX AREA ANY NONE OF THEM HAS FIX IT TRY TO DO RESEARCH ON MY OWN TO FIGURE OUT AND FOUND THAT TOYOTA HAS THIS IN RECALL MY DEALERSHIP IS NOT WILLING TO DO ANYTHING WITH THE CAR. SO I REALLY DONT KNOW WHAT TO DO ..TRYING TO GET HELP SO THIS ISSUES R FIXED AND IT SAFE FOR ME TO DRIVE THIS CAR I DRIVE ABOUT 30000 MILE EVERY YEAR AND JUST DON'T FELL SAFE DRIVING THIS CAR. *TR

Today 05/25/2024 noticed a slight camber on the right rear wheel. Jacked up the car and removed the right rear to take a closer look and realized the rear axle/subframe was splitting in half along the weld point. If I hadn't caught this today and my daughter was driving it I'm confident she or others would have been killed or severely injured since most of her driving is highway related. The part that is blowing my mind is the vehicle was at the dealership twice in the last month and no one noticed when on a lift. The car is now permanently on jack stands till it can be repaired. I'm not sure it will even hold together to get onto a tow truck. I will not attempt driving do to safety specially others. I witnessed a tire go through a vehicle resulting in the death of someone.

TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS PLUG-IN HYBRID. WHILE DRIVING APPROXIMATELY 55 MPH, THE ECO MODE SHOWED LESS FUEL PER MILE. THERE WAS NO WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO NALLEY TOYOTA OF ROSWELL (404-994-5422, LOCATED AT 11130 ALPHARETTA HWY, ROSWELL, GA 30076) TO BE DIAGNOSED, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE CONTACT STATED THAT THE FAILURE BEGAN AFTER IT WAS REPAIRED PER NHTSA CAMPAIGN NUMBER: 17V718000 (HYBRID PROPULSION SYSTEM). THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED CASE NUMBER: 1812050132. THE CONTACT WAS REFERRED TO NHTSA. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 105,000.

Today 05/25/2024 noticed a slight camber on the right rear wheel. Jacked up the car and removed the right rear to take a closer look and realized the rear axle/subframe was splitting in half along the weld point. If I hadn't caught this today and my daughter was driving it I'm confident she or others would have been killed or severely injured since most of her driving is highway related. The part that is blowing my mind is the vehicle was at the dealership twice in the last month and no one noticed when on a lift. The car is now permanently on jack stands till it can be repaired. I'm not sure it will even hold together to get onto a tow truck. I will not attempt driving do to safety specially others. I witnessed a tire go through a vehicle resulting in the death of someone.

HEADLIGHTS KEEP BURNING OUT. BOTH SIDES. ABOUT EVERY FOUR MONTHS. THIS IS DANGEROUS!!! AND UNNECESSARILY EXPENSIVE!!!

I was driving less than 55mph on freeway on February 5, 2024 when my vehicle went into an out of control spin, Brakes did not seem to work and unable to control vehicle until hit center divider on freeway, Spun 180 degrees and kept going back with no braking until hit center divider.