2016 Toyota Prius Driver assistance Problems

On September 2022 (at 46K) Dealer did TSB related fix on my 2016 Prius. PFA for service record. They replaced Exhaust Front Pipe, which is suggested work from Toyota PFA for Toyota Technical Bulletin. T-SB-0135-19 At 51,747 on March 1st 2023 around 8 40 am, while we are driving on highway at 70 mph suddenly Check Engine Light, Coolant light, Hybrid related lights were on Vehicle lost the control, speed was dropping luckily we could safely stop the vehicle on the shoulder no Vehicle hit us from behind. Sudden stop of engine while driving on highway at 51K miles is safety issue. Toyota dealer could not provide additional details except Engine is over heating.

NHTSA ID

11510536

Incident

Mar 1, 2023

When the battery cooling fan is running, the car is slow to accelerate or will not accelerate at all. The incident has happened multiple times over the past year when the temperatures are above 90. If at a complete stop, the car will not accelerate, it will only jerk forward. The car has to be turned off and restarted to be able to accelerate. If braking or reducing speed, the car will be sluggish, and I have not been able to get the speed over 40 mph. I have taken it to the dealership, but they said they could not recreate the issue, though I do not believe that they followed the directions I gave them to recreate the problem. No warning lights appear when the issue occurs, so they did not have an answer. The first time the incident occurred, I had just had the scheduled maintenance completed two days earlier and they did not find anything in the inspection that needed to be repaired. The first time the incident occurred, I was at a stop light trying to make a right turn. The incident has occurred twice when trying to pull on to the highway and accelerate up to speed.

NHTSA ID

11469085

Incident

Jun 13, 2022

THIS ISSUE HAPPENS RANDOMLY. WHEN POWERING THE CAR ON, AND WHILE THE CAR IS DOING ITS ROUTINE DASHBOARD LIGHT-UPS AND THE DINGING SOUNDS, SOMETIMES THE FORWARD SONARS WOULD BEEP AND DETECT THE OBJECT IN FRONT OF THE CAR. THE FORWARD WARNING INDICATOR SHOWS UP ON THE MULTI-INFORMATION SCREEN EVEN WHEN THE CAR IS STILL IN PARK AND WHILE THE NORMAL SYSTEM STARTUP IS TAKING PLACE. IT IS NOT SUPPOSE TO DO THAT, AS THE TRANSMISSION IS STILL IN PARK AND RUNNING THE SYSTEM STARTUP TESTS.

NHTSA ID

11413150

Incident

Mar 4, 2021

Mileage

31,200 mi

I'VE NOTICED A FEW TIMES WHILE DRIVING THAT MY PRIUS STARTED ACCELERATING WHEN MY FOOT WAS OFF THE PEDAL. IT HASN'T CAUSED AN ACCIDENT OR ANYTHING TOO SCARY YET BUT IT IS DISCONCERTING. I NOTICED OTHERS HAD COMPLAINED ABOUT THIS AND WANTED TO ADD THAT I SEEM TO BE EXPERIENCING THE ISSUE TOO. IT'S POSSIBLE IT'S JUST MY VEHICLE SPECIFICALLY; I'VE NOT HAD TIME TO TAKE IT TO A MECHANIC YET.

NHTSA ID

11376074

Incident

Nov 6, 2020

Mileage

44,000 mi

SPONTANEOUS ACCELERATION INCIDENT. I WAS SLOWLY PULLING INTO A PARKING SPACE IN A PARKING GARAGE. AS I STRAIGHTENED IT OUT TO COMPLETE THE MANEUVER, THE CAR TOOK OFF ON ITS OWN AND HIT THE WALL OF THE PARKING GARAGE THERE WAS SOME DAMAGE TO THE FRONT END. A SIMILAR INCIDENT OCCURRED ONCE BEFORE WITH NO DAMAGE. TOYOTA HAS HAD RECALLS IN PRIOR YEARS FOR THIS PROBLEM - BROKEN THROTTLE RETURN SWITCH - BUT THEY INSIST THIS ISN'T THE PROBLEM HERE. ESSENTIALLY THEY ARE CLAIMING THIS DIDN'T HAPPEN, THAT WHAT I EXPERIENCED WITH THE CAR JUST TAKING OFF ON ITS OWN DIDN'T HAPPEN. THE CAR ISN'T SAFE TO DRIVE WITHOUT GETTING THIS REPAIRED, BUT THEY CLAIM IT DOESN'T NEED REPAIR. IN THEIR RESPONSE LETTER, TOYOTA SAID, "THE EVENT DATA RECORDER (EDR) RECORDED THAT THERE WAS ACCELERATOR PEDAL APPLICATION AND NO BRAKE APPLICATION LEADING UP TO THE IMPACT." OF COURSE THERE WAS NO BRAKE APPLICATION, THERE WAS NO TIME TO APPLY THE BRAKE! THE CAR TOOK OFF LIKE A BAT OUT OF HELL AND RAMMED INTO THE WALL IN 2-3 SECONDS! THIS IS NOT ONLY A DANGER FOR ME AND MY CAR BUT COULD BE FOR OTHER PRIUS OWNERS AS WELL. I HAVE A YOUTUBE VIDEO ON HOW TO DO THE REPAIR BUT I CAN NOT UPLOAD IT HERE.

NHTSA ID

11372683

Incident

Aug 27, 2020

Mileage

14,500 mi

CAR ACCELERATING WITH NOT BEING ABLE TO STOP WHEN APPLYING BRAKE, CAR WAS PUT IN REVERSE AND TOOK OFF WITH ENGINE RACING IN HOME DRIVEWAY.

NHTSA ID

11361559

Incident

Jul 28, 2020

Mileage

42,372 mi

TOYOTA PRIUS. CONSUMER WRITES IN REGARDS TO UNINTENDED ACCELERATION. *LD THE CONSUMER THE VEHICLE ACCELERATED ON IT'S OWN STRIKING 2 VEHICLES. *JS

NHTSA ID

11318434

Incident

Feb 12, 2020

TL* THE CONTACT OWNS A 2016 TOYOTA PRIUS. WHILE ATTEMPTING TO START THE VEHICLE, THE COLLISION AVOIDANCE INDICATOR REMAINED ILLUMINATED AND THE CRUISE CONTROL FAILED TO WORK. THE CONTACT TOOK THE VEHICLE TO GATES TOYOTA (640 W IRELAND RD, SOUTH BEND, IN 46614), BUT IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 70,000.

NHTSA ID

11291277

Incident

Dec 5, 2019

Mileage

70,000 mi

OVER THE PAST YEAR AND OVER 15,000 MILES OUR 2016 TOYOTA PRIUS FOUR TOURING HAS EXPERIENCED SUDDEN DISPLAYS OF WARNING MESSAGES AND LIGHTS REPORTING BRAKING POWER LOW - VISIT YOUR DEALER; BRAKING POWER LOW - STOP IN A SAFE PLACE - SEE OWNER'S MANUAL; PRE-COLLISION SYSTEM MALFUNCTION - VISIT YOUR DEALER; ANTI-LOCK BRAKE SYSTEM MALFUNCTION - VISIT YOUR DEALER; LANE DEPARTURE ALERT MALFUNCTION - VISIT YOUR DEALER; ICS MALFUNCTION - VISIT YOUR DEALER; CHECK CRUISE CONTROL SYSTEM - VISIT YOUR DEALER. THE FOLLOWING CODES/FAULTS HAVE BEEN DETECTED: ABS - C1403, C1407, C1415; PARKING SENSORS - C164D, C1A50; BLIND SPOT MONITOR - C1A45; BLIND SPOT MONITOR SLAVE - C1A45; PRE-COLLISION SYSTEM 2 - C1A50; LANE-KEEPING ASSIST 2 - C1A50; ECU - P157800 & CRUISE ECU - P157800. THE WARNING MESSAGES/LIGHTS CAME AND WENT WHILE DRIVING ON BOTH CITY STREETS AND HIGHWAYS. EACH TIME I TOOK THE VEHICLE TO THE DEALER. THEY COULD SEE THE CODES IN MEMORY, BUT COULD NOT REPLICATE THE PROBLEM. NO PARTS WERE REPLACED. THE ONLY THING THEY HAVE DONE IS TO TAKE APART AND RESEAT SOME OF THE CONNECTOR CABLES AND THEN SEND US ON OUR WAY TELLING US TO BRING IT BACK IN IF IT HAPPENS AGAIN. WE ARE SERIOUSLY CONCERNED ABOUT THE SAFETY OF THIS VEHICLE AND HAVE NO REASSURANCE THAT THE PROBLEM HAS BEEN RESOLVED AND NO REASSURANCE THAT MAJOR BRAKING SYSTEMS MIGHT NOT BE AVAILABLE TO ME IF IT OCCURS AGAIN. I CONTACTED TOYOTA CUSTOMER ASSISTANCE WITH NO CHANGE IN THEIR POSITION. I AM CURRENTLY NEGOTIATING TO TRADE THE VEHICLE IN AS I AM NOT COMFORTABLE THAT THE PROBLEM IS RESOLVED AND DEEPLY CONCERNED THAT IT WILL HAPPEN AGAIN. I HAVE SHARED VIDEO OF THE WARNING MESSAGES AND LIGHTS WITH THE DEALER, BUT AM UNABLE TO UPLOAD VIDEO HERE.

NHTSA ID

11072880

Incident

Jan 11, 2018

Mileage

31,000 mi

TL* THE CONTACT OWNS A 2016 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE DRIVING AT ANY SPEED, THE PLASTIC RIDGE ON THE CENTER CONSOLE CAUGHT THE DRIVER'S SHOE AND CAUSED THE ACCELERATOR PEDAL TO STICK TO THE FLOORBOARD OF THE VEHICLE WHEN THE DRIVER ATTEMPTED TO RELEASE THE ACCELERATOR PEDAL. THE CONTACT CALLED THE FITZGERALD TOYOTA DEALER IN GAITHERSBURG, MD AND WAS ADVISED TO CONTACT THE MANUFACTURER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT BACK TO THE DEALER FOR INVESTIGATION. THE FAILURE MILEAGE WAS 7,700. THE VIN WAS NOT PROVIDED.

NHTSA ID

10993174

Incident

Jun 3, 2017

Mileage

7,700 mi

THE VEHICLE DOES NOT REPORT SPEED IN KPH, ONLY IN MPH. THIS MEANS THAT EVERY TIME I CROSS INTO CANADA WITH THIS VEHICLE, I HAVE DIFFICULTY DISCERNING WHETHER I AM FOLLOWING ALL VEHICLE SAFETY AND TRAFFIC LAWS OR MAINTAINING A SAFE SPEED. TO REPEAT, WHILE EVERY OTHER VEHICLE I HAVE EVER OWNED HAS A SPEEDOMETER THAT READS IN BOTH ENGLISH AND METRIC UNITS, THIS VEHICLE DOES NOT. IT REPORTS SPEED IN MPH *ONLY*. THIS IS FINE IN THE UNITED STATES, BUT EVERY TIME I CROSS INTO CANADA I'M LEFT GUESSING.

NHTSA ID

10986268

Incident

May 14, 2017

Mileage

12,000 mi

WHILE DRIVING THE VEHICLE STARTED TO SHAKE FROM UNDERNEATH FIERCELY, I CALLED MY MOTHER WHO CAME AND PICKED UP THE CAR SHE TURNED AROUND AND WENT BACK TO MY RESIDENCE, WHILE ATTEMPTING TO PARK IN THE GARAGE THE CAR STARTED TO ROLL DOWN THE DRIVEWAY AND THE BRAKES WOULDN'T WORK, THE CAR LANDED ON THE STREET. CITY OF LANCASTER CA

NHTSA ID

10953980

Incident

Feb 10, 2017

Mileage

3,510 mi

I PURCHASED A NEW 2016 PRIUS FOUR ON FEBRUARY 16, 2016. THE LITERATURE ON THE TOYOTA FACTORY WEBSITE SAYS MY PRIUS IS EQUIPPED TO SWITCH FROM ENGLISH TO METRIC UNITS. UNFORTUNATELY, TOYOTA FAILED TO DISCLOSE THAT ANY PRIUS MANUFACTURED IN JANUARY AND FEBRUARY AND DELIVERED TO THE UNITED STATES DID NOT HAVE THIS FEATURE WORKING CORRECTLY. WITHOUT THE ABILITY TO SWITCH TO METRIC UNITS, BY GOVERNMENT MANDATE, MY PRIUS DOES NOT MEET CANADIAN MOTOR VEHICLE SAFETY REGULATIONS. APPARENTLY SOME 2016 PRIUS VEHICLES SOLD IN CANADA ALSO CANNOT SWITCH TO ENGLISH UNITS WHEN DRIVING IN THE UNITED STATES PRESENTING A POTENTIAL SAFETY HAZARD. TOYOTA HAS APPARENTLY FAILED TO REVEAL A MATERIAL FACT THAT THE PRIUS SOLD TO ME DOES NOT MEET THE CANADIAN MOTOR VEHICLE SAFETY REGULATIONS. THERE WAS NO DISCLOSURE ON THE VEHICLE MONRONEY STICKER THAT THIS PRIUS HAS A DISABLED OR DELETED ENGLISH TO METRIC UNIT SPEEDOMETER DISPLAY. AFTER 10 MONTHS FROM MY DATE OF PURCHASE, THE ONLY REMEDY TOYOTA OFFERS IS FOR ME TO PURCHASE A NEW PRIUS TO REPLACE MY NEW PRIUS AT MY EXPENSE. WHEN I PURCHASED MY NEW 2016 TOYOTA PRIUS, I DID NOT KNOW I WAS PURCHASING A VEHICLE WITH VAPORWARE SOFTWARE. THERE WAS NOT A CLEAR AND CONSPICUOUS DISCLOSURE THAT TOYOTA DELETED THE OPTION TO SELECT BETWEEN ENGLISH AND METRIC UNITS WHICH AFFECTS MULTIPLE VEHICLE SYSTEMS SUCH AS NAVIGATION, HEATER/AC, SPEEDOMETER, AND ODOMETER. FOR MY FIRST SIX MONTHS OF OWNERSHIP, THE NAVIGATION SYSTEM WOULD CONSTANTLY REBOOT UNTIL TOYOTA FIXED THEIR SOFTWARE. THIS SYSTEM REBOOTING WAS A SIGNIFICANT DRIVER DISTRACTION. TOYOTA ADVERTISES, "LET'S GO PLACES." FOR TRUTH IN ADVERTISING, TOYOTA SHOULD REALLY SAY, "LET'S GO PLACES, EXCEPT TO CANADA, MEXICO AND THE REST OF THE PLANET BECAUSE SOME TOYOTA SPEEDOMETERS CAN'T DISPLAY METRIC UNITS." *TR

NHTSA ID

10937393

Incident

Feb 18, 2016

Mileage

97 mi

TL* THE CONTACT OWNS A 2016 TOYOTA PRIUS. THE CONTACT STATED THAT THE SPEEDOMETER GAUGE DID NOT ALLOW THE ABILITY TO SWITCH FROM MILES PER HOUR TO KILOMETERS. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS UNABLE TO BE DIAGNOSED OR REPAIRED DUE TO N MANUFACTURER DEFAULT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 1,500. ....UPDATED 02/06/17 *BF *CN

NHTSA ID

10937151

Incident

Sep 2, 2016

Mileage

1,500 mi

AS I LEFT WORK MY INDICATOR SHOWED A FULL BATTERY ALL BARS IN BLUE. AS I WAS DRIVING DOWN THE COAST I NOTICED THE BATTERY STARTED TO QUICKLY DEPLETE, IN APPROX 8.6 MILES MY INDICATOR SHOWED 1 BLUE BAR. AT THAT TIME I WAS MAKING A LEFT ONTO THE CANYON ROAD. I THOUGHT THIS WAS ODD. AS I TURNED LEFT NOTICED A DECREASE IN ACCELERATION POWER. DIDN'T THINK MUCH OF IT BUT ABOUT UNTIL ABOUT 2 MILES IN I NOTICED THE PRIUS STARTED LOSING ACCELERATION POWER THE MOTOR WAS RUNNING AND THE INDICATOR DID NOT SHOW THAT IT WAS IN EV MODE EVEN COASTING THROUGH THE CANYON AND BRAKING. I HAD TO ACCELERATE TO COME UP A SLOPE THROUGH A TUNNEL I HAD ALMOST NO ACCELERATION POWER. THE CAR FELT LIKE IT WAS HESITATING I THINK BY THE DOWN HILL COAST AND A FEW SPURTS OF POWER SURGES I WAS ABLE TO MAKE IT THROUGH THE TUNNEL BY THE 5TH MILE I HAD NO POWER TO ACCELERATE LUCKILY THERE WAS A ROAD WHERE I COULD MAKE A RIGHT. AS I COASTED TO THE INTERSECTION I TURNED RIGHT THEN ATTEMPTED TO PULL A UTURN ON A PATCH OF DIRT AS I WAS 3/4 OF THE THROUGH THE TURN THERE WAS ZERO POWER THE VEHICLE WAS ON BUT NO POWER ENGINE CUT OUT. NO CHECK ENGINE LIGHT WHATSOEVER I GOT SUCK IN THE MIDDLE OF THE 2 LANE HIGHWAY BLOCKING BOTH DIRECTIONS! I PUT ON MY HAZARDS AND ATTEMPTED TO PUT THE CAR IN NEUTRAL IT INDICATED IT WAS IN NEUTRAL, THEN I SHIFTED TO DRIVE BUT AGAIN NO POWER THE CAR WAS JUST MAKING A NOISE AND LIKE A VERY FAINT GRINDING NOISE. AT THIS POINT CARS WERE ON BOTH LANES TRYING TO HEAD EACH DIRECTION I HAD TO GET OUT AND PUSH THE CAR BACKWARDS TO GET 1 TIRE OFF THE SIDE GRADE THEN I WAS STILL SIDEWAYS IN THE MIDDLE OF THE ROAD. I CYCLE THE CAR 3 TIMES BY PUTTING IT IN PARK WITH PARKING BRAKE WITH NO LUCK, OR POWER. IT WASN'T UNTIL 4TH TRY IT GOT SOME POWER THE ENGINE KICKED ON AND I WAS ABLE TO PULL BACK IN THE RIGHT LANE AND I WAS STUCK AT THE CORNER WITH MY HAZARDS ON. *TR

NHTSA ID

10923955

Incident

Oct 31, 2016

Mileage

27,108 mi

THE 2016 PRIUS 4 DOESN'T COME WITH THE ABILITY TO CHANGE MILES TO KILOMETERS UNLESS YOU ARE AWARE THAT IT IS AN OPTION YOU HAVE TO BUY WHICH NEITHER SALESMEN OR TOYOTA TECHNICAL ASSISTANCE IS AWARE OF. I HAVE NOT BEEN ABLE TO FIND ANYONE WHO CAN TELL ME WHETHER THIS OPTION CAN BE ADDED BUT SO FAR IT APPEARS THAT IT IS.

NHTSA ID

10864287

Incident

Apr 29, 2016

Mileage

180 mi