2017 Toyota Prius Complaint Log

WHILE DRIVING APPROXIMATELY 30 MPH ON A SURFACE STREET, I HEARD A LOUD NOISE AND A CRACK APPEARED AT THE RIGHT EDGE OF THE WINDSHIELD, ADVANCING LEFTWARD UP AND THEN ACROSS THE WINDSHIELD AND INTO MY LINE OF SIGHT IN THE DRIVER'S SEAT. I DID NOT SEE ANYTHING HIT THE WINDSHIELD AND HAVE NEVER HEARD A SOUND LIKE THAT IN NEARLY 50 YEARS OF DRIVING. AFTER RESEARCHING REPLACEMENT WINDSHIELDS, I DISCOVERED THAT THEY ARE BACK ORDERED BECAUSE SO MANY PRIUS OWNERS ARE HAVING TO REPLACE WINDSHIELDS. IN FACT, A CLASS ACTION LAWSUIT RELATED TO THESE DEFECTIVE WINDSHIELDS WAS FILED THIS MARCH. (SEE HTTPS://WWW.COURTHOUSENEWS.COM/WP-CONTENT/UPLOADS/2018/03/TOYOTA.CA_.PDF ) I AM NOW DRIVING WITH WHAT I FEAR IS A SAFETY HAZARD TO ME AND ANY PASSENGERS.

2017 TOYOTA PRIUS. CONSUMER WRITES IN REGARDS TO UNINTENDED ACCELERATION. *LD THE CONSUMER STATED THE VEHICLE ACCELERATED AND THE BRAKES WERE UNRESPONSIVE RESULTING IN A CRASH. THE CONSUMER WAS INJURED AND REQUIRED MEDICAL ATTENTION. *JS *JS

TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. WHILE THE VEHICLE WAS PARKED IN THE DRIVEWAY, THE ENGINE AUTOMATICALLY STARTED. KOONS ARLINGTON TOYOTA (4045 LEE HWY, ARLINGTON, VA 22207, (703) 522-6000) WAS CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 5,000. *TT

CAR STARTED BY ITSELF WHEN IT WAS PARKED IN A DRIVEWAY IN HOT WEATHER IN THE SUN. MY KEY FOB DOES NOT HAVE A REMOTE STARTING MECHANISM - ONLY DOOR UNLOCK AND LOCK CAPABILITY.

TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. WHILE THE BRAKE PEDAL WAS DEPRESSED, THE REAR WHEELS SEIZED. AS A RESULT, THE CONTACT LOST CONTROL OF THE VEHICLE AND CRASHED INTO A DITCH. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THERE WERE NO INJURIES. THE VEHICLE WAS TOWED TO A BODY SHOP AND THE BODY DAMAGES WERE REPAIRED SO THAT THE VEHICLE COULD BE DRIVEN. THE VEHICLE WAS TAKEN TO KALISPELL TOYOTA (2845 U.S. 93 S, KALISPELL, MT 59901) FOR DIAGNOSTIC TESTING, BUT THE CAUSE OF THE FAILURE WAS UNDETERMINED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 7,000.

CAR HAS LOUD CONTINUOUS CREAKING/SQUEAKING NOISE FROM LEFT REAR OF THE CAR. SOUNDS LIKE IT IS COMING FROM THE SUSPENSION OR BODY FLEXING WHEN DRIVING. IT OCCURS WHEN TURNING AND REVERSING OUT OF PARKING SPACES. ALSO HAPPENS WHEN CAR IS GOING UPHILL AND DOWNHILL AND ON WINDING ROADS. DRIVER SEAT ALSO SQUEAKS WHEN IN A CERTAIN POSITION. SQUEAKING/CREAKING FROM REAR LEFT SIDE OF THE CAR CAN BE DANGEROUS IF COMING FROM THE WHEEL AREA OR SUSPENSION.

THE VEHICLE STARTED NORMALLY BUT WHEN I REACHED ABOUT TWO BLOCKS FROM MY HOUSE, THE PRIUS STARTED TO ACT AS IF THE ELECTRIC MOTORS WERE NOT ENGAGING. THE ENGINE DID NOT ENGAGE EITHER AND THE GAS PEDAL WAS UNRESPONSIVE. THE FIRST TIME THIS OCCURRED, I WAS STUCK IN THE MIDDLE OF A 4-WAY INTERSECTION UNTIL I SHUT DOWN THE VEHICLE AND RESTARTED IT. AFTER I RESTARTED THE PRIUS, IT CONTINUED BEHAVING ERRATICALLY. IT SOUNDED AND FELT LIKE THE GAS MOTOR HAD ENGAGED BUT THE ELECTRIC MOTOR HAD NOT. IT ALSO FELT LIKE THE TRANSMISSION WAS SLIPPING/NOT ENGAGING AND I HAD TO REV THE MOTOR TO GET THE TRANSMISSION TO ENGAGE (WHICH IT DID WITH A KICK LIKE IT WAS BEING PUT INTO GEAR). THIS HAS HAPPENED 3 TIMES SO FAR. I HAD A PASSENGER IN THE VEHICLE ON THE LAST INCIDENT. I HAVE TAKEN THE VEHICLE INTO THE DEALERSHIP 3 TIMES, BUT THEY ARE UNABLE TO FIND ANY ISSUES WITH THE VEHICLE. I REACHED OUT TO TOYOTA TO SEE IF THEY COULD ADDRESS THE ISSUE, BUT THEY SAID THAT THEIR FIELD TECH WAS UNABLE TO FIND ANY PROBLEM. I AM WORRIED THAT THIS CAR WILL FAIL IN TRAFFIC AND CAUSE AN ACCIDENT. THE INCIDENT DATES ARE JUNE 20, JULY 2 AND JULY 27, 2018. THE ONLY INDICATION THAT SOMETHING WAS ABNORMAL ON JULY THE 27TH. WAS A LOWER MPG READING ON MY DISPLAY. OTHER THAN THAT, THERE WAS NO WARNING OR ERROR CODES DISPLAYED.

I PULLED INTO THE CAR PORT AND PUT MY CAR IN PARK. I THEN HEAR A POP SOUND AND SAW THE SMALL HATCH WINDOW WAS SPIDER WEB CRACKED COMPLETELY ACROSS THE ENTIRE LENGTH OF THE SMALL WINDOW. I WENT OUT TO INSPECT THE REAR WINDOW AND IT HAD CRACKED AND FALLEN APART ON THE SIDES AND PART WAY ACROSS THE TOP. A WEEK EARLIER, I WENT TO GET IN MY CAR AND SAW A CRACK GOING ACROSS THE FRONT WINDSHIELD THAT WASN'T THERE THE PREVIOUS DAY. THERE WAS NO SIGNS OF ROCK OR OTHER OBJECTS HITTING THE WINDSHIELD CAUSING IT TO CRACK.

IN MODERATE TO HEAVY RAIN WITH THE TOYOTA DYNAMIC CRUISE CONTROL ENGAGED ON THE HIGHWAY BETWEEN 55 AND 70 MPH, THE PRIUS HAS DANGEROUSLY ACCELERATED ITSELF TOWARDS A CAR IMMEDIATELY IN FRONT OF MY CAR AND WOULD HAVE CREATED A FRONT-TO-REAR COLLISION IF I WAS NOT EXTREMELY VIGILANT AND MANUALLY BRAKED AND CANCELED THE ADAPTIVE CRUISE SYSTEM WITHIN 10-20 FEET OF THE CAR IN FRONT OF ME. THE SYSTEM SEEMS TO OPERATE BLINDLY IN MODERATE TO HEAVY RAIN AND WILL ACCELERATE TO USER-SET SPEED EVEN WHEN A CAR IS TRAVELING SLOWER IMMEDIATELY IN FRONT OF MY VEHICLE. I STRONGLY SUSPECT THE PRE-COLLISION BRAKING IS FAILING AT THE SAME TIME AS THE DYNAMIC CRUISE (IN RAIN) SINCE IT RELIES ON THE SAME COMPONENTS. THE PRIUS PRIME NEEDS TO BE REPROGRAMMED TO NOT ALLOW DYNAMIC CRUISE ENGAGEMENT IN MODERATE TO HEAVY RAIN. THIS IS A VERY DANGEROUS SITUATION BECAUSE DRIVER VISIBILITY IS ALREADY IMPAIRED UNDER THESE CONDITIONS. IF THIS DID NOT OCCUR MULTIPLE TIMES, I WOULD NOT HAVE BELIEVED IT WAS ACTUALLY HAPPENING. THE PRIUS MANUAL SAYS THAT RAIN CAN CAUSE THE SYSTEM TO NOT BEHAVE AS INTENDED; HOWEVER, IN THAT CASE IT NEEDS TO BE AUTOMATICALLY DISABLED SO IT DOES NOT CREATE A VERY FALSE SENSE OF SECURITY. THIS IS GOING TO COST LIVES IF IT'S NOT REPROGRAMMED. I WOULD BE SURPRISED IF THIS WAS THE ONLY TOYOTA THAT EXHIBITS THIS DANGEROUS BEHAVIOR. I STRONGLY BELIEVE THAT LIVES CAN BE SAVED WITH A SIMPLE REPROGRAM OF THE SYSTEM TO NOT ALLOW OPERATION UNDER CONDITIONS THAT CAN CREATE UNINTENDED ACCELERATION INTO A SLOWER MOVING VEHICLE. TOYOTA SHOULD SAVE THEMSELVES MILLIONS IN POTENTIAL LIABILITY AND TAKE THIS SUGGESTION SERIOUSLY.

WHEN IT RAINS THE COLLISION DETECTION SYSTEM GIVES OFF FALSE WARNINGS. THE INTELLIGENCE CLEARANCE SONAR (ICS) SYSTEM GIVES AN ERROR AND IS UNRELIABLE. THIS IS A SAFETY ISSUE AND HAS BEEN REPORTED BY MULTIPLE PRIUS OWNER WITH THE ICS SYSTEM: HTTPS://PRIUSCHAT.COM/THREADS/CLEAN-PARKING-ASSIST-SENSOR-AND-INTELLIGENT-CLEARANCE-SONAR-ISSUE.182931/

I HAVE 9150 MILES ON MY CAR. GOING 80MPH ON THE HIGHWAY MY RIGHT REAR TIRE BLEW OUT. THE TIRES ARE TOYO NANOENERGY A29. THE TIRE BLEW OUT ON THE SIDE OF THE TIRE FACING THE CAR. I DID NOT HIT ANYTHING. TOYOTA REFUSED TO PAY FOR THE TIRE EVEN THOUGH THEY ARE STILL UNDER WARRANTY. THEY EVEN CHARGED ME FOR LABOR.

IN EARLY OR MID MAY 2018, WHEN MY NEW 2017 TOYOTA PRIUS PRIME HAD LESS THAN OR APPROX. 10,000 MILES ON IT AND WHEN I WAS GETTING INTO MY CAR ONE SUNNY MORNING IN MY GATED PARKING LOT, I FIRST NOTICED A VERY THIN VERTICAL CRACK (CIRCA 2-3 INCHES) ON MY WINDSHIELD - STARTING AT THE VERY BOTTOM OF THE WINDSHIELD BELOW MY WIPERS. THE CRACK WAS LOCATED IN THE MIDDLE OF THE GLASS, I.E. BETWEEN DRIVER & PASSENGER. THE CAR WAS STATIONARY, AND HAD SAT IN MY PARKING SPOT FOR THE LAST DAY OR TWO, AND THEN ON THIS MAY MORNING, THERE WAS A CRACK. NO CHIP MARK HAD EXISTED PRIOR TO THIS, AND NO ROCK HAD HIT IT WHEN I DROVE IT LAST. THERE WAS NO LARGE TREE NEAR MY PARKING SPOT, PLUS NOTHING WAS ON THE WINDSHIELD WHEN I GOT TO MY CAR THAT MORNING, SO NOTHING FELL ON IT. IN LESS THAN A WEEK, THE DAMAGE ON THE GLASS GREW LARGER (6 INCHES) AND WAS SPREADING. I TOOK MY CAR IN FOR 10,000 MILE SERVICE PER TOYOTACARE, BUT TOYOTA DENIED WARRANTY COVERAGE FOR THE REPAIR OR REPLACEMENT OF ITS FRAGILE PRIUS PRIME'S WINDSHIELD, DESPITE IT BEING WITHIN THE WARRANTY PERIOD AND THE DEFECT MANIFESTING ITSELF WHEN THE CAR WAS STATIONARY. WITHIN THE NEXT FEW DAYS, THE CRACK GREW AND SPREAD LARGER, EVENTUALLY TURNING 90 DEGREES AND EXPANDING HORIZONTALLY. IN LATE MAY OR EARLY JUNE 2018, I REPLACED THE WINDSHIELD VIA SAFELITE AUTO. THE TOTAL BALANCE OF THE FIRST REPLACEMENT WAS ABOUT $800 - I.E. THE REPLACEMENT COST WAS ABOUT $400, BUT I WAS TOLD MORE MONEY WAS NEEDED TO PROPERLY FIX CAMERA (ADAS) PROBLEMS CAUSED BY REPLACING THE WINDSHIELD. IN JUNE 2018, THE NEW WINDSHIELD CRACKED, ALMOST 1 OR 2 WEEKS AFTER I JUST HAD IT REPLACED. WHILE DRIVING ON THE HIGHWAY, I NOTICED A TINY OBJECT HIT MY WINDSHIELD. I CONTACTED THE DEALER. IN AUGUST 2018, THE DEALERSHIP SAID IT KNEW OF NO PROBLEMS WITH THE 2017 TOYOTA PRIUS WINDSHIELDS.

IN EARLY OR MID MAY 2018, WHEN MY NEW 2017 TOYOTA PRIUS PRIME HAD LESS THAN OR APPROX. 10,000 MILES ON IT AND WHEN I WAS GETTING INTO MY CAR ONE SUNNY MORNING IN MY GATED PARKING LOT, I FIRST NOTICED A VERY THIN VERTICAL CRACK (CIRCA 2-3 INCHES) ON MY WINDSHIELD - STARTING AT THE VERY BOTTOM OF THE WINDSHIELD BELOW MY WIPERS. THE CRACK WAS LOCATED IN THE MIDDLE OF THE GLASS, I.E. BETWEEN DRIVER & PASSENGER. THE CAR WAS STATIONARY, AND HAD SAT IN MY PARKING SPOT FOR THE LAST DAY OR TWO, AND THEN ON THIS MAY MORNING, THERE WAS A CRACK. NO CHIP MARK HAD EXISTED PRIOR TO THIS, AND NO ROCK HAD HIT IT WHEN I DROVE IT LAST. THERE WAS NO LARGE TREE NEAR MY PARKING SPOT, PLUS NOTHING WAS ON THE WINDSHIELD WHEN I GOT TO MY CAR THAT MORNING, SO NOTHING FELL ON IT. IN LESS THAN A WEEK, THE DAMAGE ON THE GLASS GREW LARGER (6 INCHES) AND WAS SPREADING. I TOOK MY CAR IN FOR 10,000 MILE SERVICE PER TOYOTACARE, BUT TOYOTA DENIED WARRANTY COVERAGE FOR THE REPAIR OR REPLACEMENT OF ITS FRAGILE PRIUS PRIME'S WINDSHIELD, DESPITE IT BEING WITHIN THE WARRANTY PERIOD AND THE DEFECT MANIFESTING ITSELF WHEN THE CAR WAS STATIONARY. WITHIN THE NEXT FEW DAYS, THE CRACK GREW AND SPREAD LARGER, EVENTUALLY TURNING 90 DEGREES AND EXPANDING HORIZONTALLY. IN LATE MAY OR EARLY JUNE 2018, I REPLACED THE WINDSHIELD VIA SAFELITE AUTO. THE TOTAL BALANCE OF THE FIRST REPLACEMENT WAS ABOUT $800 - I.E. THE REPLACEMENT COST WAS ABOUT $400, BUT I WAS TOLD MORE MONEY WAS NEEDED TO PROPERLY FIX CAMERA (ADAS) PROBLEMS CAUSED BY REPLACING THE WINDSHIELD. IN JUNE 2018, THE NEW WINDSHIELD CRACKED, ALMOST 1 OR 2 WEEKS AFTER I JUST HAD IT REPLACED. WHILE DRIVING ON THE HIGHWAY, I NOTICED A TINY OBJECT HIT MY WINDSHIELD. I CONTACTED THE DEALER. IN AUGUST 2018, THE DEALERSHIP SAID IT KNEW OF NO PROBLEMS WITH THE 2017 TOYOTA PRIUS WINDSHIELDS.

THE WINDSHIELD OF OUR 2017 PRIUS PRIME SUSTAINED DAMAGE WHILE TRAVELING ON A HIGHWAY. THE STONE WAS PEA SIZED AND SHOULD NOT HAVE CRACKED THE WINDSHIELD AT THE SPEED OF 50MPH.

BRIGHT LED HEADLIGHTS ISN'T THE ISSUE JUST WITH MY PRIUS PRIME BUT WITH ALMOST ALL NEW VEHICLES ON THE ROAD THAT I PRESUME HAVE LED LIGHTS. THE LIGHTS ARE SO BRIGHT THAT IT BOTHERS THE DRIVER OF THE ONCOMING VEHICLE OR TRAFFIC. I FACE THAT ISSUE WHILE DRIVING AND CAN IMAGINE THE SAME WITH THE DRIVER OF THE ONCOMING VEHICLE. THERE ARE INSTANCES WHEN DRIVERS FLASH THEIR HEADLIGHTS ASKING TO USE LOW-BEAM WHILE I AM ALREADY USING THE LOW-BEAM LIGHT SETTING. LAST NIGHT 3/6/2018, AN IRRITATED DRIVERS JUST BRUSHED OFF MY CAR ON A COUNTY ROAD THINKING THAT I AM NOT RESPONDING TO HIS FLASHING LIGHT SIGNAL OR ASK TO USE LOW-BEAM ON MY CAR. I SEE EXCESSIVE BRIGHT LIGHTS ON NEWER CARS AS A SAFETY ISSUE WHILE DRIVING.

TRAVELING AT APPROXIMATELY 35 MPH, A SMALL ROCK THROWN UP BY ONCOMING TRAFFIC HIT THE LOWER LEFT EDGE OF THE WINDSHIELD, A LARGE CRACK EXTENDING MORE THAN HALFWAY ACROSS THE DRIVERS SIDE WINDSHIELD APPEARED. THIS APPEARS TO BE A COMMON ISSUE WITH NEWER TOYOTA HYBRIDS. TOYOTA DEALERSHIP HAS QUOTED $1500 TO REPLACE WINDSHIELD AND RE-CALIBRATE SAFETY EQUIPMENT.

NOTICED TWO SMALL CRACKS IN THE WINDSHIELD, CENTER AREA CLOSE TO BOTTOM OF WINDSHIELD. DID NOT NOTICE SOUND OR SIGHT OF AN IMPACT, BUT TWO DAYS LATER, CRACKS HAD SPREAD LEFT AND RIGHT ABOUT 14 INCHES EITHER SIDE OF ORIGINAL SITE OF CRACKS.

TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. WHILE DRIVING APPROXIMATELY 65 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE SPUN OUT OF CONTROL. THE BRAKE WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED TWICE. THE VEHICLE WAS TAKEN TO TOYOTA OF POWAY (13631 POWAY RD, POWAY, CA 92064), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 7,000.

HEAD RESTRAINT (HEAD REST). PUSHES HEAD FORWARD. CAUSES NECK/BACK DISCOMFORT. HEAD STRIKING HEAD RESTRAINT ON ROUGH ROAD FEELS LIKE A CONCUSSION! LONG DRIVES ARE MISERABLE. SEAT ADJUSTMENTS FAIL TO OVERCOME THE ISSUE. 5'3" WOMAN. I HAD A PRIUS 2006 AND IT WAS JUST FINE. THIS PRIUS SEAT IS SO UNCOMFORTABLE I MIGHT SELL IT.

2017 TOYOTA PRIUS TWO. CONSUMER WRITES IN REGARDS TO SWAYING AND WOBBLING WHILE VEHICLE IS IN MOTION. *LD *TR

FRIDAY JANUARY 12, 2018, DROVE VEHICLE 3.5 HOURS ON HIGHWAY DURING PERIOD OF DECLINING TEMPERATURES- 34 TO 29 FAHRENHEIT, WITH SNOW BEGINNING HOUR 2.5. OPERATED FRONT DEFROST CONTINUOUSLY FOR ENTIRE 3.5 HOUR TRIP WITH CABIN TEMP BETWEEN 72 AND 75F. MADE 2 STOPS, 10 MINUTES EACH- ONE AT 1.5 HOURS AND ONE AT 3 HOURS. PARKED OVERNIGHT IN HOME GARAGE AT END OF TRIP. AIR TEMP DECLINED TO 19F OVERNIGHT. BACKED CAR OUT OF GARAGE IN MORNING AND WINDSHIELD CRACKED AT CENTERLINE OF FRONT DEFROST VENT. CRACK HAS CONTINUED TO EXPAND TO POINTS ALMOST EXACTLY 5 INCHES BEYOND EACH END OF DEFROST VENT, THEN STOPPED EXPANDING. PASSENGER SIDE (RIGHT SIDE) CRACK IS ALIGNED EXACTLY WITH CENTERLINE OF DEFROST VENT. AT POINT 5" OUTBOARD OF VENT, PASSENGER SIDE CRACK TURNS DOWN AND EXTENDS TO BOTTOM EDGE OF WINDSHIELD. DRIVER (LEFT SIDE) CRACK IS PARALLEL TO VENT ON LINE 3" BELOW VENT, THEN TURNS UP, CROSSES VENT, AND PARALLELS VENT 3" ABOVE VENT TO TERMINATION OF CRACK AT 5" OUTBOARD OF VENT. NOTHING IMPACTED WINDSHIELD DURING TRIP AND WINDSHIELD WAS NOT CRACKED AT END OF TRIP. ENGINEERING DEFECT- INADEQUATE GLASS STRENGTH- UNABLE TO USE DEFROSTER FOR EXTENDED PERIODS. CRACK CREATED BY STRESS FROM LOCALIZED THERMAL EXPANSION- ALIGNED WITH HEAT SOURCE OF DEFROSTER VENT AT LOWER MIDDLE REGION OF WINDSHIELD. THIS IS FIRST EXTENDED USE OF DEFROSTER IN CAR- PURCHASED MAY 2018. CURRENTLY HAS 21,800 MILES.

TOPIC: PRIUS CRACKED WINDSHIELD I HAVE A 2017 PRIUS PURCHASED NEW ABOUT A MONTH AGO WITH ABOUT 1500 MILES DRIVEN. 2 DAYS AGO, WHEN I PULLED TO A GAS STATION TO PUMP GAS, I NOTICED A SMALL CRACKS ON UPPER RIGHT HAND ALONG THE EDGE OF WINDSHIELD. YESTERDAY, THE CRACKS DEVELOPED INTO 12 IN. LONG. CHECKED THICKNESS BETWEEN FINGERS, IT IS ABOUT SAME AS THAT OF A DRINKING GLASS, VERY THIN FOR A CAR. QUICK CHECK ON INTERNET REVEALED THIS IS VERY COMMON ISSUE WITH PRIUS 2016 OR NEWER. CALLED TOYOTA AND WAS INFORMED THIS IS NOT A MANUFACTURE DEFECT. I'VE OWN SEVERAL CARS FROM TOYOTA AND HONDA WITH NO ISSUE WITH ROCK HITTING. PLEASE CHECK INVESTIGATE THIS ISSUE TO SEE IF IT IS A DESIGN MISTAKE IN PURSUE OF WEIGHT REDUCTION. THANK YOU.

TOPIC: 2017 PRIUS WINDSHIELD CRACKED. I HAVE 2017 PRIUS PURCHASED NEW ABOUT A MONTH AGO WITH 1500 MILES DRIVEN. 2 DAYS AGO, WHEN I PUMPED GAS, I NOTICED A SMALL CRACK IN UPPER RIGHT HAND SIDE ALONG THE EDGE. I DON'T REMEMBER GETTING HIT BY AN OBJECT WHILE DRIVING. YESTERDAY THE CRACKS GOTTEN LONGER. CHECKED THICKNESS BETWEEN MY FINGER, IT LOOKS THE SAME AS THAT OF A DRINKING GLASS. A QUICK SEARCH ON INTERNET REVEALED THAT IT IS A VERY COMMON ISSUE WITH 2016 OR NEWER MODEL. CALLED TOYOTA AND WAS INFORMED THAT IT IS A MANUFACTURE DEFECT. I HAVE OWED OTHER VEHICLES MADE BY TOYOTA AND HONDA THAT WERE HIT WITH FLYING OBJECT WITH NO PROBLEM. EVEN WITH CRACK, IT SHOULDN'T HAVE SPIRALED OUT THAT FAST AND LARGE. PLEASE INVESTIGATE TO SEE IF IT IS DESIGN MISTAKE IN PURSUE OF WEIGHT REDUCTION. THANK YOU.

ON I-75 @70 MILES/HR, WITH AROUND 800 MILEAGE NEW PRIUS, TOYO TIRE OF THE REAR TIRE POPPED OUT AND ROLLED ON THE I-75 WITHOUT ANY WARNING LIGHTS BUT WITH SOME GAS SMELL, PUTTING ALL THE OCCUPANTS TO HIGH RISK OF CRASH ON THE BUSIEST FREEWAY, AND THE AGONY OF THE INCIDENT. I TOWED MY PRIUS TO VALDOSTA TOYOTA, EVEN THOUGH TOYOTA CARE SHOULD COVER ROADSIDE ASSISTANCE, THEY CHARGED ME FOR TOWING AND PUTTING NEW TIRE. THERE WAS A PROBLEM WITH THE PRIUS GAS SYSTEM OR TOYO TIRE OF PRIUS. AFTER AROUND 100 MILES I TRIED TO PUT IN GAS, PRIUS TANK DIDN'T TAKE GAS, WENT TO CLEAR WATER TOYOTA AND GOT IT REPAIRED, DESPITE EXPLAINING TOYOTA CARE AND LESS THAN 1K MILEAGE, THEY CHARGED ME FOR REPAIR. CONTACTED TOYOTA CARE AND MY LOCAL DEALER, THEY SAID VALDOSTA AND CLEAR WATER TOYOTA SHOULD NOT HAVE CHARGED. THE DEALERS SAY TOYOTA CARE NEED TO REIMBURSE THE REPAIRS AT LEAST, AS THEY CAN'T COMPENSATE THE AGONY OF LOSING A TIRE IN THE MIDDLE OF THE FREEWAY. TOYOTA CARE DOESN'T EVEN BOTHER TO REGISTER A COMPLAINT AND INVESTIGATE THE ISSUE AND DETERMINE PRIUS GAS SYSTEM OR TOYO TIRE IS UNDER FAULT. EVEN AFTER GOING THROUGH 3 TOYOTA DEALERS AND CONTACTING TOYOTA MANY TIMES, THERE IS NO SOLUTION, SO A) WHO INVESTIGATES THE ISSUE? B) HOW TO ENSURE TOYOTACARE FOLLOWS THEIR PLAN? C) HOW TO BRING RESPONSIBILITY TO TOYOTA OR TOYO, THEIR SUPPLIER, SHOULD BE UNDER WARRANTY AS PART OF THE CAR WARRANTY? D) HOW TO ENSURE THE KINDS OF HORRIFYING INCIDENTS DO NOT HAPPEN TO ANY OTHER FAMILY IN FUTURE?

WHILE DRIVING ON I-75 THERE SEEMS TO BE A SPARK CAUSED FUEL TO LEAK AND BURN BACK TIRE AND THE TIRE ROLLED OFF THE FREEWAY PUTTING ALL THE FIVE PASSENGERS INTO A HAZARDOUS SITUATION ON THE I-75 FREEWAY. WE SMELLED SMELL OF TIRE AND GAS LEAK. FORTUNATELY, WE WERE ABLE TO PULL OFF THE FREEWAY. IT WAS REPORTED TO TOYOTA AND THEIR DEALERS MULTIPLE TIMES. NO ONE EVEN BOTHERED OR CONCERNED ABOUT THE ISSUE OR SAFETY OF PASSENGERS.

MY COMPLAINT HAS TO DO WITH A DESIGN "FEATURE" OF MY NEW VEHICLE. HAVING OWNED IT LESS THAN A WEEK, NO RELATED INCIDENT HAS OCCURRED. HOWEVER, I SEE AN UNNECESSARY RISK DUE TO THIS DESIGN. MY NEW CAR, A 2017 PRIUS 4 TOURING, COMES WITH NO SPARE TIRE. THERE ARE THREE PRIUS MODELS LIKE THAT, EVEN FOR THE 2018 MODEL YEAR. HAVE YOU CONSIDERED THE RELATED SAFETY ASPECTS OF THAT TOYOTA DECISION? IN THE WESTERN US, ESPECIALLY, THERE ARE MANY PAVED ROADS WITH LITTLE OR NO TRAFFIC AND SPOTTY, IF ANY, CELL PHONE SERVICE. TYPICALLY, THEY ARE IN DESERT AREAS, SCORCHING IN THE SUMMER, FRIGID IN WINTER, WITH TOWNS FAR APART. IF A DRIVER OF A CAR LIKE MINE HAS A TIRE BLOWOUT IN SUCH A REMOTE AREA, HE/SHE IS LITERALLY STRANDED. THE SUPPLIED TIRE REPAIR KIT WILL NOT HELP IN CASE OF A BLOWOUT. AVERAGE OWNERS WILL NOT EVEN KNOW THEY ARE WITHOUT A SPARE TIRE UNTIL THEY NEED ONE. MORE THAN AN INCONVENIENCE, THIS COULD BE FATAL TO THE DRIVER AND PASSENGERS IN EXTREME HEAT OR COLD. THE DRIVER'S ONLY HOPE IS THAT ANOTHER VEHICLE WILL HAPPEN ALONG TO HELP. A RISK LIKE THAT DOES NOT JUSTIFY A MANUFACTURER'S CUTTING COSTS TO BOOST PROFITS. IMHO, THE NHTSA SHOULD TAKE THE FOLLOWING ACTIONS: 1 - ANY CAR SOLD NEW WITHOUT A USABLE SPARE SHOULD BE RECALLED AND RETROFITTED. 2 - MANUFACTURERS SHOULD NOT BE ALLOWED TO SELL CARS IN THE USA WITHOUT A USABLE SPARE. THANK YOU FOR ALLOWING ME TO VOICE MY OPINION. I HOPE YOU WILL AGREE THAT ABSENCE OF A SPARE TIRE IS AN UNNECESSARY RISK.

I WANT TO CHECK IF THERE IS A ISSUE WITH THE PRE COLLISION AND THE BRAKING ASSISTANCE FEATURES. MY PRIUS PRIME ROLL FORWARD DURING A IDLED STOP AND I DID NOT RECEIVE WARNING AND THE CAR DID NOT ASSIST STOP FEATURE DID NOT ENGAGE.

EVEN THOUGH THIS VEHICLE HAS NOTHING TO DO WITH THIS CASE, I CONSIDER THAT IT IS VERY RELEVANT THAT I EXPRESS MY CONCERNS WITH THIS VEHICLE DUE TO THE FACT THAT I TRADED IN MY 2015 TOYOTA PRIUS FOR A VEHICLE THAT PROVIDED AN UNSAFE DRIVING EXPERIENCE TO MY FAMILY WHICH WAS THE 2017 TOYOTA PRIUS WITH VIN NUMBER [XXX] AFTER TAKING IT TO THREE DIFFERENT TOYOTA DEALERSHIPS TO BE EVALUATED BY TWO DIFFERENT TOYOTA FIELD INSPECTORS FROM TOYOTA HEADQUARTERS, TOYOTA MOTOR VEHICLES MADE THE CHOICE NOT TO LISTEN TO OUR CONCERNS AND REJECTED TO TAKE RESPONSIBILITY PROVIDING ME A SAFETY HAZARD PRODUCT IN ORDER TO AVOID LEMON LAW AND/OR MAKE ME AWARE OF THE HIGH LEVELS OF EMF THAT THE VEHICLE HAD. ON APRIL 18 2019, WE NEVER WERE TOLD BY THE SECOND FIELD INSPECTOR SENT BY TOYOTA HEADQUARTERS THE RESULTS OF HIS FINDINGS. BIG TWO TOYOTA TOOK ADVANTAGE OF THE SITUATION AND CONVINCED US TO TRADE IN THIS VEHICLE FOR A NEW 2019 TOYOTA SIENNA. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

1) THE EVENT OCCURRED ON OCTOBER 4, 2017. 2) 2017 TOYOTA PRIUS WITH APPROXIMATELY 19,980 MILES. 3) THE VEHICLE HAS BEEN SERVED ON SCHEDULE AT A TOYOTA DEALERSHIP. 4) AT THE PRIOR INSPECTION NO DAMAGE OR ABNORMAL WEAR WAS REPORTED. 5) FROM THE TIME OF THE 15,000 MILE INSPECTION NO DAMAGE OCCURRED TO THE TIRE. 6) AT NO TIME DID THE TIRE PRIOR TO THE INCIDENT, DID THE TIRE INFLATION WARNING ANNUNCIATOR ILLUMINATE. 7) WHILE TRAVELING ON A STATE HIGHWAY (SIMILAR TO A INTERSTATE) WHICH IS IN VERY GOOD AND SMOOTH CONDITION, DRY AT THE TIME, FREE OF DEBRIS, STRAIGHT AT THE LOCATION OF THE INCIDENT, AT APPROXIMATELY THE POST SPEED LIMIT OF 70 MPH. WITH VIRTUALLY NO WARNING THE LEFT FRONT TIRE FAILED CATASTROPHICALLY WITH ENTIRE OUTBOARD PORTION OF THE TREAD SEPARATING FROM THE SIDEWALL STRUCTURE. THE CAR REMAINED UNDER CONTROL AND I WAS ABLE TO DECELERATE WHILE TRAVELING STRAIGHT AHEAD AND REMAINING WITHIN THE CONFINES OF MY LANE, TO A SPEED WHERE I WAS ABLE TO EXIT THE TRAFFIC LANE AND CAME TO STOP ON THE RIGHT HAND SHOULDER OF THE HIGHWAY. 8) OTHER THAN TOTAL FAILURE OF THE TIRE, NO ADDITIONAL DAMAGE TO THE VEHICLE WAS SUSTAINED AND NO INJURY TO THE OCCUPANT OR OTHER PARTIES OCCURRED. 9) I HAVE PHOTOGRAPHS OF THE FAILED TIRE WHILE STILL MOUNTED TO THE WHEEL, INCLUDING THE TREAD OF THE TIRE AND THE OUTER SIDE, WHICH IS THE LOCATION OF THE FAILURE.

THE AIR CONDITIONER EMITS A FOUL SMELL WHEN STARTING AND WHILE DRIVING. HAVE MANY NEW CARS AND NEVER HAD THIS CHRONIC PROBLEM. TOOK THE CAR TO THE DEALER AND WAS TOLD THAT THIS WAS A RECURRING PROBLEMS WITH TOYOTA. TRADED IN 2015 PRIUS WITH 36000 MILES FOR THE PRIUS PRIME AND NEVER HAD A AIR CONDITIONING PROBLEM WITH THAT PRIUS

JUST BOUGHT MY 2017 TOYOTA PRIUS NOT OVER 4 MONTHS AND MY WINDSHIELD HAVE 1 LARGE CRACKED AND A TINNY CHIPPED ON IT. AS I WAS DRIVING ON THE HIGHWAY CRACKED WHEN A TINY ROCK HIT THE UPPER RIGHT SIDE I COULD SEE THE CRACK GETTING LONGER UNTIL IT NEARLY REACHED THE MIDDLE. I AM VERY WORRY ABOUT THE QUALITY OF THE WINDSHIELD BY THE 2017 TOYOTA PRIUS.

A SMALL PEBBLE HIT MY WINDSHIELD BELOW THE INSPECTION STICKER. WITHIN SECONDS A CRACK STARTING DEVELOPING. WITHIN TWO MINUTES IT REACHED ALMOST HALFWAY ACROSS THE WINDSHIELD. I HAVE READ MANY COMPLAINTS ABOUT FRAGILE AND VULNERABLE PRIUS WINDSHIELDS. I BELIEVE TOYOTA NEEDS TO CORRECT THIS DEFECT, REPAIR MY WINDSHIELD AND PERFORM ANY NECESSARY RE-CALIBRATION. I HAVE UPLOADED TWO PICTURES.

DRIVING ON HIGHWAY AND A SMALL ROCK HIT THE OUTER EDGE OF MY WINDSHIELD AND WITHIN 5 MINUTES HAD AN 8 INCH CRACK AND BY THE END OF THE DAY IT HAS EXPANDED TO OVER 12 INCHES. CALLED TO HAVE FIXED AND WINDSHIELD HAS BEEN ON BACKORDER FOR OVER A MONTH. CAR IS ONKY 1 WEEK OLD!

TOYOTA PRIUS PRIME 2017 LANE DEPARTURE WARNING WITH STEERING ASSIST. THIS STEERING ASSIST FUNCTION DOES NOT WORK AS IT DOES IN ANY OTHER TOYOTA MODEL. I HAVE SPOKEN WITH TOYOTA ENGINEERING AND MET WITH A TOYOTA TECHNICAL REPRESENTATIVE AND THEY ADMIT THAT THE STEERING ASSIST FUNCTION DOES NOT WORK AS IT DOES IN ANY OTHER TOYOTA MODEL. AS YOU WILL SEE FROM MY ATTACHED DOCUMENT THIS FUNCTION REALLY DOESN'T WORK AT ALL. I AM NOT SURE IF THIS IS A REGULATED SAFETY FEATURE OR NOT BUT IT WAS SUGGESTED BY A TOYOTA EMPLOYEE THAT I MAKE THE NHTSA AWARE OF THIS FAILURE AS IT COULD BE A SAFETY CONCERN THAT SHOULD BE LOOKED AT. I HAVE DRIVEN AT LEAST 5 PRIUS PRIME ADVANCED AND ALL HAVE THIS PROBLEM IN THAT THE STEERING ASSIST FUNCTION DOES NOT WORK IN ANY OF THEM EVEN THOUGH IT IS ADVERTISED AND SOLD TO THE CONSUMER AS A INTEGRAL PART OF THE TOYOTA SAFETY SUITE THAT IS ON ALL TOYOTA VEHICLES. THIS STEERING ASSIST FUNCTION DOES WORK ON ALL OF THE OTHER TOYOTA MODELS AS ADVERTISED AND AS A CONSUMER WOULD EXPECT. PLEASE REVIEW MY ATTACHED DOCUMENT THAT DESCRIBES THE PROBLEM AND MY ATTEMPTS TO GET TOYOTA TO CORRECT THIS PROBLEM. THE STOCK ANSWER I HAVE RECEIVED FROM MOST TOYOTA REPRESENTATIVES IS THAT THE STEERING ASSIST "WORKS AS IT IS ENGINEERED TO DO" MY STOCK ANSWER TO THIS IS WHY DOES IT FUNCTION DIFFERENTLY THAN EVERY OTHER VEHICLE EQUIPPED WITH THE TOYOTA SAFETY SUITE. I HAVE NEVER RECEIVED A COHERENT REPLY TO THAT QUESTION.

I HAVE RECENTLY INSTALLED HAND CONTROLS ON MY CAR AND UNDERWENT PROPER TRAINING.FSINCE THE HAND CONTROLS WORK THE OPPOSITE OF A ZERO TURN LAWNMOWER I HAVE TO FIGHT THE FACT THAT THEY WORK IN REVERSE. I HAVE TRIED TO FIND AN APP FOR MY COMPUTER WITH A JOYSTICK THAT WOULD SIMULATE DRIVING AND HOW TO RESPOND TO A CHILD RUNNING IN FRONT OF MY CAR. THIS IS SOMETHING OBVIOUSLY I CAN'T PRACTICE ON THE ROAD AND MY INSTINCT MIGHT BE THE OPPOSITE OF WHAT IT SHOULD BE. I WOULD LIKE SUCH A GAME TO ENSURE THAT MY RESPONSE ALWAYS IS IMMEDIATE DO YOU HAVE SUGGESTIONS?

1) THE TABLET INFORMATION SCREEN IS SO LARGE AND THE INSTRUCTIONS SO COMPLICATED THAT YOU HAVE TO TAKE YOUR EYES OFF THE ROAD FOR A LONG TIME JUST TO REGULATE HVAC AND RADIO 2) THE CAR GOES COMPLETELY DEAD RANDOMLY AFTER DRIVING IT. MUST BE TOWED.

WHILE DRIVING ON INTERSTATE HIGHWAY IN HEAVY TRAFFIC USING CRUISE CONTROL MY CAR SUDDENLY ACCELERATED QUICKLY. WEATHER WAS ALIGHT RAIN. IT WAS LIKE THE RADAR FOR THE CRUISE CONTROL SHUT OFF OR STOPPED BEING PROCESSED.

CAR WAS HIT BY FLYING DEBRIS WHICH PRODUCED LARGE CRACK IN WINDSHIELD. VEHICLE WAS TRAVELING DOWN TWO LANE HIGHWAY AT LEGAL SPEED.

PLEASE NOTE: THAT I HAVE OWNED A PREVIOUS GENERATION PRIUS - A 2011 - AND I AM MORE THAN AWARE THAT REGENERATIVE BRAKING WORKS ENTIRELY DIFFERENTLY THAN A CONVENTIONAL BRAKING SYSTEM. SO IN NO WAY AM I REFERRING TO THE "USUAL NOISES" THAT COME FROM REGENERATIVE BRAKING. PLEASE SEE ATTACHED DOCUMENT FOR EXPLANATION OF LIFE AND SAFETY ISSUE.

TRAVELING EAST ON THE 10 THROUGH PHOENIX AZ, MY WINDSHIELD WAS HIT BY SOMETHING SO SMALL I COULDN'T SEE IT. CAUSED A STAR LESS THAN 1/3" BUT ALSO A WINDING CRACK ALMOST 1 FT. LONG. THE REAL PROBLEM IS THAT EVERY DAY WHEN I COME OUT TO MY CAR, THE CRACK HAS GROWN IN A SNAKING PATTERN. IT DOES NOT GROW AT ALL WHILE DRIVING. I PERIODICALLY CHECK IT WHILE DRIVING. TODAY THE CRACK GREW OVER 1 FT. IN LENGTH OVER THE COURSE OF THE MORNING, JUST SITTING IN THE DRIVE WAY.

DEFECT IN MOLDING AROUND WINDOW FRAMES THAT ALLOW AIR TO PASS WITH WINDOWS ROLLED UP

TOYOTA SAFETY CONNECT COMMUNICATION MODULE HAS CEASED FUNCTIONING. VEHICLE TELEMATICS INOPERATIVE. SOS BUTTON INOPERATIVE. COLLISION NOTIFICATION INOPERATIVE. DEALER UNABLE TO DIAGNOSE.

TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. WHILE THE VEHICLE WAS PARKED, IT ROLLED WITHOUT WARNING. THE CONTACT WAS ABLE TO CATCH UP WITH THE VEHICLE BEFORE IT STRUCK A POLICE VEHICLE. THE OFFICER GAVE THE CONTACT A WARNING. IN ADDITION, THE VEHICLE ACCELERATED ON ITS OWN INTERMITTENTLY. THE LOCAL DEALER (ELMORE TOYOTA, 15300 BEACH BLVD, WESTMINISTER, CA, 92683) INFORMED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V741000 (SERVICE BRAKES), AND RECOMMENDED HE SCHEDULE AN APPOINTMENT FOR DIAGNOSTIC TESTING. THE VEHICLE WAS NOT DIAGNOSED DUE TO THE DIAGNOSTIC FEE. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 1709193209. THE MANUFACTURER CONFIRMED THAT THE VEHICLE WAS NOT INCLUDED IN THE RECALL, AND THAT THERE WOULD BE A DIAGNOSTIC CHARGE. THE FAILURE MILEAGE WAS APPROXIMATELY 15,000.

WE PURCHASED A 2017 TOYOTA PRIUS ON JANUARY 29TH 2017 AND ON MARCH 22ND 2017 THE CAR CAUGHT ON FIRE OUT OF NO WHERE. THE CAR WAS PARKED AND OFF WHEN SMOKE BEGAN TO COME OUT FROM THE AROUND THE SHIFT CHANGER AND THE TOUCH SCREEN AREA. AFTER A FEW SECONDS THE CAR WAS COMPLETELY ON FIRE.

1)THE DRIVER'S SEAT IS TILTED TO THE RIGHT 2)DRIVER SEAT BAD 3)LONG-DISTANCE DRIVING VERY TIRED 4)THE PASSENGER SEAT IS TILTED TO THE RIGHT 5)SHEET CAN NOT SUPPORT MY BODY

TL* THE CONTACT OWNS A 2017 TOYOTA PRIUS. THE CONTACT STATED THAT THE VEHICLE STARTED ON ITS OWN WITHOUT WARNING. THE CONTACT STATED THAT HE HAD AN AUTO POWER START FOB, BUT IT WAS NOT AROUND THE KEY FOB. IN ADDITION, A HEADLIGHT WARNING SENSOR ILLUMINATED THAT ADVISED THE CONTACT TO TAKE THE VEHICLE TO THE DEALER. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (BRUNSWICK AUTO MART, 3031 CENTER RD, BRUNSWICK, OH, 44212). THE DEALER REPLACED THE PASSENGER SIDE HEADLIGHT SYSTEM AND SENSOR. THE HEADLIGHT WAS REPAIRED. THE CONTACT MENTIONED THE VEHICLE ENGAGING INDEPENDENTLY TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND THEY STATED THAT THEY WOULD DOCUMENT THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 2,000. ...UPDATED 09/21/17 *BF UPDATED 9/22/2017*JS UPDATED 09/25/2017*JS ***UPDATED 09/26/17*LJ *JS

UNDER CERTAIN DAYTIME CONDITIONS THE DASHBOARD DISPLAY BECOMES TEMPORARILY UNREADABLE DUE TO PUPILLARY DELAY ADJUSTING TO UNILLUMINATED DASHBOARD DISPLAY OF SPEEDOMETER.THE DASHBOARD, BY DESIGN, IS NOT ILLUMINATED DURING DAYLIGHT. BECAUSE OF THIS, UNDER BRIGHT SUNNY CONDITIONS, WHEN THE DRIVER GLANCES AT THE SPEEDOMETER DISPLAY, HIS EYES CANNOT IMMEDIATELY ADJUST TO READ THE VEHICLE WITHOUT TAKING HIS EYES OFF THE ROAD AHEAD TO KNOW HIS SPEED.

MY NEW TACOMA HAS A WHINE/HOWL COMING FROM THE REAR DIFFERENTIAL. PER MY DEALER, THEY HAVE STARTED A TAS CASE WITH TOYOTA CORP AND WERE ADVISED THAT THE CONDITION DESCRIBED IS KNOWN, AND UNDER INVESTIGATION. TAS SAYS THERE ARE NO RECOMMENDED REPAIRS AT THIS TIME. THE PROBLEM IS OCCURRING BETWEEN 30-65 MPH WHEN DECELERATING AND FEATHERING THE THROTTLE, BUT IS NOW BECOMING MORE PRONOUNCE WITH TIME AND MORE MILEAGE. I'M CONCERNED THAT THE ISSUE COULD POTENTIALLY BECOME A SAFETY ISSUE. THIS ISSUE IS OCCURRING WITH 2016-17 TACOMA'S. MANY DIFFERENTIALS HAVE BEEN REPLACED BY DEALERS; EVEN THE REPLACEMENT DIFFERENTIALS ARE EXPERIENCING THE SAME ISSUE.

THE RUBBER ON THE HANDLE TO OPEN MY HATCHBACK HAS MELTED. IN THE WINTER, I CAN NO LONGER OPEN THE HATCH DOOR, AND IN THE SUMMER, IT IS DIFFICULT TO OPEN.

THE ADAPTIVE CRUISE CONTROL IN THIS VEHICLE HAS SEVERAL OPERATIONAL ISSUES (PROGRAMMING BUGS OR DEFECTS) WHICH ARE POTENTIALLY EXTREMELY HAZARDOUS. PERHAPS THE MOST POTENTIALLY DANGEROUS BEHAVIOR OF THE SYSTEM IS AS FOLLOWS: - WHEN USING ADAPTIVE CRUISE CONTROL, THE SYSTEM AUTOMATICALLY ACCELERATES AND APPLIES BRAKING FORCE TO STAY A SET DISTANCE (ONE OF THREE DISTANCES) FROM THE NEAREST PRECEDING VEHICLE. - WHEN THE NEAREST PRECEDING VEHICLE CHANGES LANES, THE SYSTEM CAN BECOME CONFUSED, DISPLAY "NO PRECEDING VEHICLE" AND DISENGAGE. - THIS BEHAVIOR CAN BE DANGEROUS OR LIFE-THREATENING IN SOME CASES, WHICH I'VE EXPERIENCED SEVERAL TIMES: WHAT HAPPENED: - HIGHWAY DRIVING AT 65MPH, USING ADAPTIVE CRUISE CONTROL AND FOLLOWING ANOTHER VEHICLE. - WE APPROACH AN AREA OF CONGESTION OR STOPPED VEHICLES (A TRAFFIC JAM). - THE PRECEDING VEHICLE BEGINS QUICK DECELERATION IN ORDER TO AVOID REAR-ENDING THE VEHICLE IN FRONT OF IT. - MY ADAPTIVE CRUISE CONTROL ALSO APPLIES STRONG BRAKING TO MAINTAIN ITS PROGRAMMED DISTANCE - THE PRECEDING VEHICLE CHANGES LANES OUT OF MY LANE - MY ADAPTIVE CRUISE CONTROL DISPLAYS "NO PRECEDING VEHICLE" AND DISENGAGES, WHICH MEANS THAT IT STOPS BRAKING - MY CAR IS NOW FLYING INTO THE VEHICLE IN FRONT OF ME, GIVING ME ONLY A MOMENT TO REACT AND APPLY BRAKING. INSTEAD OF DISENGAGING DURING BRAKING, THE ADAPTIVE CRUISE CONTROL SHOULD CONTINUE BRAKING DOWN TO A SPEED OF 25MPH, WHICH IS THE MAXIMUM SPEED THAT TOYOTA'S SAFETY STOP OPERATES AT TO BRING A CAR TO A COMPLETE STOP. THE CURRENT BEHAVIOR OF THE SYSTEM HAS LED TO SEVERAL NEAR ACCIDENTS IN MY HIGHWAY DRIVING, AND IS UNDOUBTEDLY A DANGER TO ANYONE ELSE WHO USES A TOYOTA ADAPTIVE CRUISE CONTROL OF THIS MODEL ON THE HIGHWAY. I REPORTED THIS ISSUE TO TOYOTA LAST YEAR AND THEY SEEM UNINTERESTED IN FIXING IT, REFUSING EVEN TO CONVEY MY REPORT TO THEIR DEVELOPERS IN JAPAN.