2007 Toyota Sienna Power Train

TL* THE CONTACT OWNS A 2007 TOYOTA SIENNA. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE BEGAN TO JERK AND THE TRANSMISSION HESITATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE TRANSMISSION FAILED. THE DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE VEHICLE WAS OUT OF WARRANTY. THE FAILURE MILEAGE WAS 53,000.

AT MY 120,000 SERVICE, THE TOYOTA DEALER TECHNICIAN REPORTED A LEAKING FRONT DIFFERENTIAL. HE SAID IT WOULD TAKE 16 HOURS TO REPAIR. THE TECHNICIAN ALSO MENTIONED THAT HE HAD 3 TOYOTA CARS CURRENTLY IN THE SHOP FOR THE SAME THING. THIS SEEMS BEYOND COINCIDENTAL. CLEARLY, TOYOTA HAS A PROBLEM WITH LEAKING SEALS. THE DIFFICULTY TO FIX THIS PROBLEM TRANSLATED INTO A BILL OF $1,404.60 PLUS $31.79 FOR A RENTAL CAR. THE BILL MAY HAVE BEEN MORE: THE CAR'S RACK AND PINION WAS ALSO LEAKING, SO SOME OF THE LABOR WAS SHARED WITH THAT JOB. THIS AMOUNT SEEMS EXTREME AND EITHER TOYOTA HAS FAULTY SEALS OR, IF THIS IS A "NORMAL" WEAR AND TEAR ITEM AT 120,000 MILES, TOYOTA HAS MADE IT WAY TOO DIFFICULT TO FIX. EITHER WAY, THIS AMOUNT OF EXPENSE IS INORDINATE.

VEHICLE WAS PARKED ON SLIGHT INCLINE IN DRIVEWAY (NOT RUNNING). KEY WAS IN IGNITION, BUT VEHICLE WAS NOT RUNNING AND IT WAS IN THE OFF POSITION. FOUR YEAR OLD CHILD SHIFTED VEHICLE OUT OF PARK INTO NEUTRAL CAUSING IT TO ROLL DOWN A HILL AND IMPACT SEVERAL TREES (NO INJURIES). AFTER THE INCIDENT, WE HAVE FOUND THAT THE VEHICLE CAN OCCASIONALLY BE EASILY SHIFTED OUT OF PARK WITH NO KEY IN THE IGNITION AND WITHOUT APPLYING PRESSURE TO THE BRAKE PEDAL. MOST OF THE TIME IT FUNCTIONS AS IT SUPPOSED TO (AND WON'T LET YOU TAKE IT OUT OF PARK).

TRANSMISSION HAD BEEN HESITATING AT TIMES, BUT MECHANIC COULDN'T FIND ANY PROBLEMS. AT 60,400 MILES, THE TRANSMISSION DIED COMPLETELY AND WE WERE STRANDED FAR FROM HOME. THIS OCCURRED ON A WELL-MAINTAINED VEHICLE. BECAUSE IT WAS OVER THE 60 MONTHS/60,000 MILES WARRANTY, TOYOTA OFFERED NO ASSISTANCE. BETWEEN TOWING AND REPLACING TRANSMISSION, IT COST US $5900. EVEN THE MECHANIC WAS SURPRISED BY THE FAILURE AT SUCH LOW MILEAGE, AS TOYOTA SIENNA IS WHAT HE NORMALLY RECOMMENDED TO HIS CUSTOMERS LOOKING FOR A RELIABLE FAMILY VEHICLE. WE WERE LUCKY NO ONE IN OUR FAMILY WAS INJURED, BUT WE ARE EXTREMELY DISAPPOINTED WITH TOYOTA NOT STANDING BY ITS PRODUCT. IN HINDSIGHT, I WISH WE HAD PURCHASED THE HONDA ODYSSEY.

I WAS DRIVING MY HUSBAND TO WORK, WHEN WE PULLED INTO HIS WORK, ALL OF A SUDDEN I HAD SMOKE COMING FROM UNDER MY HOOD. WE SHUT THE VEHICLE OFF, I HAD OIL EVERYWHERE. WE COULDN'T TELL WHERE THE LEAK WAS. I HAD THE VEHICLE TOWED HOME AND THEN TO ELK GROVE TOYOTA. WELL IT TURNS OUT THAT THE OIL COOLER LINE BROKE. THIS IS A DESIGN FLAW IN 2007 TO 2010 TOYOTA SIENNA'S. THERE ARE TECHNICIAL SERVICE BULLETINS BUT NO RECALLS. I HAD TO RENT A VEHICLE BEFORE I COULD EVEN GET IT TO A DEALERSHIP. THAT BILL WAS $365. THIS IS MY ONLY VEHICLE. THE FIRST TIME EVER BUYING A TOYOTA. I RESEARCHED FOR 4 MONTHS BEFORE I BOUGHT THIS VEHICLE.

CAR STARTED HAVING PROBLEMS APPROX 55,000 MILES, LEFT ME STRANDED ON THE SIDE OF THE ROAD TWICE. FIRST TIME CHECK ENGINE LIGHT CAME ON AND STARTED TO STALL. PULLED OFF FREEWAY, CHECKED MANUAL AND IT REFERENCED ELECTRONIC THROTTLE CONTROL, SHUT OFF THE CAR AND RESTARTED AND WAS ABLE TO GET ON THE ROAD. CHECK ENGINE LIGHT CAME ON AGAIN, CHECKED CODE IGNITION COILS, HAD TO REPLACE #6. ANOTHER INSTANCE, CAR STARTED TO STALL, CHECK ENGINE LIGHT FLASHED AT ME, PULLED OFF THE ROAD. WAS ABLE TO TAKE IT TO DEALER IN WHICH THEY STATED THEY COULDN'T FIND A PROBLEM. NOW WITHIN DAYS MY CAR'S TRANSMISSION COMPLETELY WENT OUT, CURRENT MILLAGE 65, 987. TOYOTA WILL NO ABSOLUTELY NOTHING TO ASSIST BECAUSE ITS "OUT OF WARRANTY". ABSOLUTELY UNACCEPTABLE.

THE TRANSMISSION STARTED SLIPPING AND THEN WENT OUT COMPLETELY, CAUSING THE VAN TO BE UNABLE TO MOVE AT ALL. THIS OCCURRED ON A PUBLIC HIGHWAY. THE TRANSMISSION REQUIRED COMPLETE REPLACEMENT AT A COST OF OVER $5000.00. *TR

ON 11/12/15, THE RADIATOR BODY AROUND THE LOWER TRANSMISSION OIL LINE FITTING ON THE RADIATOR CRACKED, ALLOWING THE FITTING TO BREAK AWAY FROM THE RADIATOR. THIS CAUSED ALMOST ALL OF THE TRANSMISSION OIL TO BE PUMPED INTO THE RIGHT SIDE OF THE ENGINE COMPARTMENT. THE VEHICLE WAS BEING DRIVEN IN HEAVY RAIN ON RAIN SOAKED ROADS AT 55MPH ON SECONDARY ROADS WHEN SMOKE WAS OBSERVED. WHEN THE VEHICLE WAS STOPPED HEAVY SMOKE WAS COMING FROM UNDER THE HOOD AND BOTTOM OF VEHICLE, BUT NO FIRE STARTED. NO OIL LEAK WAS OBSERVED BEFORE THE INCIDENT (NO OIL ON GARAGE FLOOR). LEAK HAPPENED SUDDENLY AFTER APPROXIMATELY 3 MILES OF DRIVING. THE VEHICLE ODOMETER READING WAS 95,510.

UPON SLOWING DOWN TO TURN A STREET CORNER THE TRANSMISSION SLIPPED BEFORE IT WOULD GO AGAIN. IT SEEMED THAT IT WAS BETWEEN THE SLOWING DOWN AND RE-ACCELERATING AFTER THE TURN. THIS PROBLEM IS WELL DOCUMENTED ON GOOGLE BY MANY DRIVERS. THE DEALERS REPROGRAM SOME COMPUTER AND THEN DECLARE IT TO BE FIXED WHEN THE SAME PROBLEM OCCURS AGAIN. TOYOTA REFUSES TO FIX THE PROBLEM WHICH COSTS ONE ABOUT $3,000 TO ACTUALLY FIX IT BY REPLACING THE TRANSMISSION. I BOUGHT THE VAN AS USED. *TR

TL* THE CONTACT OWNS A 2007 TOYOTA SIENNA. THE CONTACT STATED THAT THE TRANSMISSION FAILED. THE CONTACT ALSO STATED THAT NHTSA CAMPAIGN NUMBER 13V429000 (POWER TRAIN) REPAIR WAS PERFORMED; HOWEVER, THE REPAIR DID NOT CORRECT THE FAILURE. THE CONTACT ALSO STATED THAT THE GEAR SHIFT WAS IN DRIVE HOWEVER, THE VEHICLE FAILED TO ACCELERATE. THE DRIVER ATTEMPTED TO SHIFT FROM REVERSE TO DRIVE AND WAS UNABLE TO RELEASE THE GEAR SHIFT. THE VEHICLE WAS TOWED TO THE DEALER, WHO PERFORMED A DIAGNOSTIC TEST THAT CONFIRMED THAT THE TRANSMISSION FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 127,000.

4 YR CHILD WAS ABLE TO SHIFT VAN INTO DRIVE WITHOUT IGNITITON KEY IN STARTER. WAS ABLE TO REPLICATE THE EVENT 30 MIN LATER AT HOME ONCE. WILL TAKE VAN IN TO DEALER FOR SERVICE. *TR

TL*THE CONTACT OWNS A 2007 TOYOTA SIENNA. THE CONTACT STATED THAT WHENEVER THE GEAR SHIFT WAS PLACED IN PARK, THE VEHICLE ROLLED FORWARD. THE DEALER WAS CONTACTED AND STATED THAT THERE WERE NO RECALLS OR RELATED WARRANTIES; HOWEVER, THERE WAS A PIECE THAT BROKE OFF THE LINKAGE WHERE THE GEAR BOX WAS LOCATED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 63,000.

MY 2007 TOYOTA SIENNA ACCELERATE ON TURNS OR WHEN TRYING TO STOP. *CN

THE TRANSMISSION WAS DOING WHAT FELT LIKE "NEUTRAL DROPS" AT LOW SPEEDS, WHERE I WOULD SHIFT INTO DRIVE, GET THE "CLUNK" THAT I NORMALLY ASSOCIATE WITH THE TRANSMISSION DROPPING INTO FIRST, THEN DEPRESS THE GAS SLIGHTLY TO START MOVING. THE PROBLEM IS THAT THE ENGINE WOULD REV SUDDENLY, AND THEN CATCH FIRST, WHICH AS YOU KNOW, CAUSES A SUDDEN LURCH OF THE ENTIRE VEHICLE SINCE THE ENGINE HAD BEEN REVVING JUST BEFORE IT CAUGHT. IT WOULD ALSO OCCASIONALLY JUST "LOSE" THE GEAR WHILE DRIVING AT LOW SPEEDS. ON 6/12/2010 THE TRANSMISSION WENT OUT ON ME WHILE I WAS DRIVING HOME (WITH MY FAMILY) ON THE FWY (NORTH 5) FROM LEGOLAND. I HAVE TO ACROSS 5 LANES TO GET TO THE SHOULDER. I GOT THE VAN BRAND NEW ON 3/28/2007 (W/ONLY3 MILES ON THE VAN) FROM CARSON TOYOTA, CA...I PAID $28000 W/PACKAGE3 (OUT THE DOOR PRICE)...AS OF 6/12/2010 THE VAN HAS UNDER 14,000MILES. THE TOYOTA DEALER REPLACED THE TRANSMISSION WITH NO CHARGE (STILL UNDER POWERTRAIN WARRANTY). TRANSMISSIONS AREN'T SUPPOSED TO GO OUT THAT QUICKLY, IT DEFINITELY SEEMS TO BE A QUALITY CONTROL ISSUE. UNDER 14,000 MILES THERE HAS BEEN NO SERVICE DUE SO IT'S NOT A MATTER OF MISSING SCHEDULED MAINTENANCE. THIS IS OBVIOUSLY A VERY VALID SAFETY CONCERN. *TR

2007 TOYOTA SIENNA: TRANSMISSION TEMPORARILY FAILS TO ENGAGE THE CORRECT GEAR AFTER DECELERATING THEN RE-ACCELERATING RESULTING IN A PAUSE OR HESITATION BEFORE CONTROL IS AGAIN REGAINED. THIS OCCURS MOST FREQUENTLY WHEN SLOWING FOR TURNS AT INTERSECTIONS OR BEHIND SLOWING TRAFFIC OR ATTEMPTING A LANE CHANGE. THREE SERVICE CALLS HAVE BEEN MADE ON THE VEHICLE WHICH WERE RECORDED AS A "BAD ECU PROGRAM". SERVICE TECHNICIANS "REPROGRAMMED THE ECU" TO "RESET ADAPTIVE MEMORY AND SHIFT POINTS" HOWEVER THERE WAS NO CHANGE IN PERFORMANCE. IT WAS SUGGESTED THAT THIS WAS A DESIGN PROBLEM WHICH HAD BEEN CORRECTED IN LATER MODEL YEARS. THE POTENTIAL CONSEQUENCES OF THE TRANSMISSION'S FAILURE TO IMMEDIATELY ENGAGE IN THE CORRECT GEAR ARE THE LOSS IN ABILITY TO QUICKLY ACCELERATE OUT OF A PENDING COLLISION OR TO AVOID SLOWING IN THE MIDDLE OF AN INTERSECTION AND CAUSING OTHERS TO HAVE COLLISIONS. *TR

TRANSMISSION SLIPPING ON 2007 TOYOTA SIENNA VAN. WHEN TRAVELING AT 6-8 MPH THE TRANSMISSION WILL SLIP WHEN THE ACCELERATOR IS DEPRESSED. THE VAN WILL HESITATE THEN SUDDENLY LURCH FORWARD. THE DEALER SAYS THAT THIS IS NORMAL AND WILL NOT DO ANYTHING TO REPAIR IT. *TR

ENGINE/TRANSMISSION HESITATION/NON-RESPONSIVENESS. THIS IS PARTICULARLY APPARENT WHEN YOU LIFT OFF THE THROTTLE TO GO OVER A BUMP OR TURN. WHEN YOU PRESS THE THROTTLE AFTER THAT, THE THROTTLE DOES NOT RESPOND QUICKLY LIKE ANY OF MY OTHER VEHICLES. THIS HAPPENS ALL THE TIME. *TR

2007 SIENNA, HESITATES AFTER RE-ACCELERATING BETWEEN 5 TO 10 MPH. ACCELERATION PRESSED BUT CAR DOES NOT MOVE FOR 1 OR 2 SECOND. TOOK TO DEALER 3 TIME AND ALSO TALKED TO TOYOTA HQ (DEALER DID FIND PROBLEM BUT HQ SAID NOT TO PUT ANYTHING IN REPORT SAYING THERE IS A PROBLEM) THEY JUST SAYING NOTHING CAN BE DONE TO CAR RIGHT NOW A.K.A NO UPDATES AVAILABLE ALSO AUTOMATIC TRANSMISSION HAS LOT OF JERKS WHEN IT SWITCHES GEARS... EXAMPLE: HALF STOP AT STOP SIGN AND IT ACCELERATES WITHOUT DEPRESSING THE PEDAL AND RPM GOING UP BUT CAR NOT MOVING UNTIL HALF WAY DOWN TO INTERSECTION. *TR