2015 Toyota Sienna Brakes Problems

The contact called on behalf of his mother who owns a 2015 Toyota Sienna. The contact stated while his mother was driving 15 MPH, the brake pedal was depressed but failed to respond, causing the vehicle to crash into the rear of another occupied vehicle. There was no warning light illuminated. The air bags did not deploy. Both the contact's mother and the other driver received assistance from emergency units. The contact's mother sought medical assistance and was informed that she had sustained soreness in the neck muscle. The contact was unsure whether the other driver sustained any injuries. The vehicle was towed to a tow lot. The vehicle was then towed to an autobody shop but was not repaired. The vehicle was then towed to the residence. A police report was filed. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 93,955.

When vehicle is in reverse the rear breaks on passenger side start squealing and making a loud noise when applied specially when vehicle has been stopped for while however on occasion it does it every time you back up when applying break.

When I drive this van downhill on a curve not fast slower than 40mph, the antilock brakes engage violently and hard and jerky I do not have my foot on the brake when this happens. I'm not going fast. But the ABS is so violent it causes me to lose control of the steering. It happened 3 times in 24 hours and always in same situation. Only lasts a few seconds. Other Sienna owners have had same issues. 119k miles on the van. Bought it used. Had no idea. Of course dealership can't replicate the problem and won't help us. I'm scared to drive the car.

BRAKE SHAKING/SHUTTER UPON BRAKING DOWN A STEEP HILL. THE 2015 SIENNA AWD HAS 45,000 MILES. THE SIENNA HAS MOSTLY BEEN DRIVEN ON FLAT TO MILD SLOPED INTERSTATE ROADS THAT DO NOT REQUIRE BRAKING. RECENT INSPECTION BY A TIRE SHOP REPORTS 12/32 REMAINING ON BRAKE PADS SHOWING MINIMAL TO NO WEAR. UPON DRIVING DOWN A STEEP ROAD REQUIRING BRAKING TO CONTROL SPEED THERE WAS VIOLENT SHAKING/SHUTTER IN THE FRONT END. THINKING SOMETHING WAS BROKEN, REDUCED THE SPEED AND USED TRANSMISSION TO CONTROL SPEED TO REDUCE BRAKE APPLICATION. THIS RELIEVED THE VIOLENT SHAKING. CHECKING INTERNET THERE IS A TOYOTA TSB FOR THIS PROBLEM REPLACING BRAKE PADS AND ADDITIONAL WORK. THE PROBLEM HAS TO BE REPORTED TO TOYOTA WITHIN THE 36,000 MILE WARRANTY TO HAVE THE PROBLEM FIXED BY TOYOTA. THIS PROBLEM NEEDS TO BE FIXED BY A SAFETY RECALL WHEN OEM REMAIN ON THE VEHICLE.

TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING AT AN UNKNOWN SPEED AND MAKING A LEFT TURN, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO RESPOND AS IT TRAVELED TO THE FLOORBOARD. AS A RESULT, ANOTHER VEHICLE CRASHED INTO THE FRONT PASSENGER CORNER PANEL OF THE CONTACT'S VEHICLE. THE CONTACT AND A PASSENGER IN THE OTHER VEHICLE SUSTAINED UNKNOWN INJURIES THAT REQUIRED MEDICAL ATTENTION. THE AIR BAGS DEPLOYED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 32,774. THE VIN WAS NOT AVAILABLE.

VIBRATION WHEN APPLYING THE BRAKE. TOYOTA ISSUED A TSB: T-SB-0045-14. THIS SHOULD BE A RECALL. IT IS UNSAFE.

BROUGHT VEHICLE INTO DEALER FOR ROUTINE SERVICE AND MAINTENANCE. SERVICE TECHNICIANS INFORMED ME THAT THE BRAKE ROTORS WERE "SEVERELY SCORCHED" AND "WARPED," AND RECOMMENDED IMMEDIATE REPLACEMENT OF ALL PADS AND ROTORS. TECHNICIAN ASKED IF I TOW A TRAILER OR ROUTINELY HAUL HEAVY ITEMS, NEITHER OF WHICH I HAVE EVER DONE; TECHNICIAN THEN ASKED IF I RIDE MY BRAKES WHEN I DRIVE, WHICH I DO NOT. VEHICLE HAS 29K MILES AND IS USED ONLY FOR CITY DRIVING FOR JUST MY WIFE AND I (AND OCCASIONALLY MY SON'S FAMILY, WHICH CONSISTS OF TWO ADULTS AND TWO CHILDREN), BUT I HAVE NEVER DRIVEN THIS VEHICLE IN AN ABNORMAL FASHION. I DIDN'T NOTICE ANYTHING OUT OF THE ORDINARY WHILE I DROVE IT, SO I CONSIDER MYSELF LUCKY THE TECHNICIANS CAUGHT THE DAMAGE BEFORE THE BRAKES FAILED. THIS IS THE FORTH VAN I HAVE OWNED BUT MY FIRST TOYOTA, AND I'VE NEVER HAD A BRAKE ISSUES WITH ANY OF MY PREVIOUS VEHICLES--NOT EVEN THE VAN THAT I DROVE BACK AND FORTH TO WORK 50+ MILES A DAY AND CROSS-COUNTRY THREE TIMES, RACKING UP WELL OVER 100K MILES.

VEHICLE WAS IN REVERSE BACKING OUT OF AN INCLINED DRIVEWAY INTO A CULDASAC. THE BRAKES WOULD NOT ENGAGE TO STOP THE CAR. THE DEALERSHIP TOWED THE CAR AND EXAMINED IT. THEY SAID THEIR WERE 8 CODES THAT WERE SHOWING. THE DEALERSHIP SPENT A DAY EXAMINING THE CAR. THEY TOLD US THEY FOUND NOTHING WRONG. THEY GAVE US NO PAPERWORK DETAILING WHAT THE CODES WERE OR WHAT THEY HAD DONE TO CHECK THE CAR. THEY SAID THE CAR WAS SAFE TO DRIVE.

WHEN BRAKING AT SPEED EXITING HIGHWAY, BRAKES BEGAN VIBRATING. THE SIENA HAS 19,300 MILES ON IT. I TOOK IT TO THE DEALER AND WAS TOLD THE FRONT ROTORS WERE WARPED. THE CAR HAS NOT BEEN SUBJECTED TO EXTREME DRIVING CONDITIONS AND A WARPED ROTORS MAY NOT HAVE BEEN NOTICED BY OTHERS. BUT THE ROTOR AFTER WARPING WOULD INVARIABLY LEAD TO CRACKED ROTOR OR BRAKE FAILURE AT SOME POINT AND POSE A HAZARD, POSSIBLY CATASTROPHIC FAILURE AND DAMAGE OR INJURY. LUCKILY, I CAUGHT IT BEFORE SOMETHING SERIOUS HAPPENED. I THINK TOYOTA SHOULD LOOK INTO PREMATURE FAILURES.

2015 TOYOTA SIENNA LIMITED DEFECTIVE BRAKE SYSTEM DESIGN. THE CONSUMER STATED TOYOTA HAS DONE NOTHING TO FIX THE INAUDIBLE TURN INDICATOR. THE CONSUMER STATED THE ISSUE WAS WHETHER OR NOT THE BRAKING SYSTEM COULD SUPPORT TOWING AN ADDITIONAL 3500 POUND LOAD AS ADVERTISED. BASED ON HIS EXPERIENCE OF HAVING WARPED FRONT ROTORS THAT REQUIRED REPLACEMENT AT 19,242 MILES, THERE WAS A SERIOUS FRONT AND REAR BRAKE DESIGN FLAW. UPDATED 04/14/2017*JS *JS

WHEN PULLING INTO A PARKING SPACE, THE CARE REVED AND LUNGED FORWARD, APPROXIMATELY 5 FEET WHILE THE FOOT WAS ON THE BRAKE. HAPPENED TWICE, WHEN TURNING RIGHT INTO PARKING SPACE. CALLED DEALER ABOUT INCIDENT AND THEN TOOK VAN INTO DEALER NEXT DAY. THEY CONTACT TOYOTA (CASE #152470163). TOYOTA INFORMED DEALER THAT THIS WAS NOT THAT UNCOMMON WITH SIENNA VANS. IF SOMEONE HAD BEEN IN FRONT OF THE VEHICLE AT THE TIME OF THE FIRST INCIDENT THEY WOULD HAVE BEEN INJURED. IF I HAD BEEN PARKING IN MY GARAGE I WOULD HAVE DAMAGED THE HOUSE. TOYOTA INDICATE THERE WAS NOT A REPAIR AND THAT ONE WAS NOT NEEDED AND TOLD DEALER TO RELEASE THE VEHICLE TO CUSTOMER (QUOTE). THE DEALER THOUGHT IT WAS THE COMPUTER AND THAT IT REVED THE MOTOR AUTOMATICALLY DUE TO USING AC. WE DO NOT UNDERSTAND WHY A COMPUTER CAN NOT BE PROGRAMMED TO MAKE SURE THIS DOES NOT HAPPEN - WE NO LONGER FEEL SAFE IN THE VEHICLE.

WHILE DRIVING ON THE NYS THRUWAY WITH THE CRUISE CONTROL ACTIVATED MY VAN CAME TO AN ABRUPT STOP ON THE THRUWAY. THERE WERE NO VEHICLES IN CLOSE PROXIMITY TO MY VAN THAT WOULD HAVE ACTIVATED THE RADAR CRUISE OR THE AUTONOMOUS EMERGENCY BRAKING SYSTEM. AFTER THE ABRUPT STOP ALL THE LIGHTS ON THE DASH WERE LIT UP IE: BRAKE, ABS, PCS, SLIP INDICATOR LIGHT, AND MASTER WARNING LIGHT. WHEN I REACHED MY DESTINATION I WAS UNABLE TO OPEN THE DOORS OF MY VEHICLE. SOMEONE TRIED TO OPEN THE DOORS FROM THE OUTSIDE OF THE VEHICLE AND THEY WERE UNABLE TO OPEN THEM AS WELL. I BROUGHT IT TO THE LOCAL TOYOTA DEALER AND THEY COULD FIND NOTHING WRONG. THE ABOVE LIGHTS HAVE LIT UP ON SEVERAL OCCASIONS HOWEVER THE DEALER COULD FIND NOTHING WRONG. THERE HAS BEEN A PREVIOUS COMPLAINT FOR THE SAME BEHAVIOR ON 6/6/15 REPORTED TO TOYOTA FOR THE SAME MAKE AND MODEL AS MINE A TOYOTA SIENNA PREMIUM AND THEY HAVE NOT BEEN ABLE TO GET TOYOTA TO ACT ON IT.