2004 Toyota Sienna Engine Problems

The contact's mother owns a 2004 Toyota Sienna. While the contact's mother was driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the warning lights illuminated on and off for days and months. The vehicle was taken to an independent mechanic where DTC: P2241 was retrieved. The vehicle was not repaired. The contact was advised to take the vehicle to the dealer. The vehicle was taken to the dealer where the failure code was confirmed. The contact was informed that the oxygen sensors needed to be replaced. In addition, the contact was informed that a TSB for the ECM software update needed to be performed. The contact stated that the vehicle was not repaired because the ECM software update was performed, and the ECM software update damaged the ECM. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 150,132.

NHTSA ID

11699794

Incident

Nov 10, 2025

Mileage

150,132 mi

Unknown

NHTSA ID

11424276

Incident

Jun 22, 2021

I HAVE A PROBLEM AT SHIFT SOLENOID E MAKE MY CAR JUMP AND NOT SAFE WHEN PARK

NHTSA ID

11182765

Incident

Dec 12, 2018

Mileage

168,000 mi

KNOCK SENSOR AND VSC ARE MALEFUNCTIONING.

NHTSA ID

11141525

Incident

Apr 1, 2018

TL* THE CONTACT OWNS A 2004 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT HEARD A LOUD NOISE AND LOST STEERING CONTROL. THE VEHICLE WAS PULLED OVER TO THE SIDE OF THE ROAD AND TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS LATER TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE CRANKSHAFT PULLEY FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 96,321.

NHTSA ID

10917438

Incident

Oct 16, 2016

Mileage

96,321 mi

WHEN NEGOTIATING MOVING INTO TRAFFIC AT SLOW SPEEDS, WHEN A SMALL AMOUNT OF ACCELERATOR MOVEMENT IS MADE THE VEHICLE RAPIDLY ACCELERATES MAKING IT NECESSARY TO QUICKLY APPLY THE BRAKES TO AVOID COLLISION. THE VEHICLE WAS PURCHASED USED FROM A DEALER AND THERE WAS A RECALL BULLETIN (TECH SERVICE BULLETIN ISSUED 11/7/2003 FOR 04-05 SIENNA BULLETIN NO TC007-03 OUT ON THE ENGINE CONTROL MODULE. WHEN POINTED OUT TO THE DEALER THEY SIMPLY STATED THAT THAT RECALL WAS ONLY AVAILABLE TO THE ORIGINAL PURCHASER AND THEN ONLY IF REPORTED WITHIN THE FIRST THREE MONTHS AFTER PURCHASE. WAS TOLD BY TWO DEALERS THAT THE RECALL DID NOT APPLY TO OUR VEHICLE AND LATER THAT A RECALL WAS NOT ISSUED FOR THAT PROBLEM. ( I HAVE A COPY OF THE ORIGIONAL RECALL NOTICE STATING THE ABOVE PROBLEM)

NHTSA ID

10788278

Incident

Jul 25, 2006

Mileage

37,447 mi

RADIATOR FAILURE RESULTING IN COOLANT LEAKAGE IN THE TRANSMISSION FLUID AND TRANSMISSION IS FAILING. I NOTICED MY 2004 TOYOTA SIENNA HAD SOME BELT NOISE THAT GOT WORSE. THE VAN WAS DUE FOR A WATER PUMP/TIMING BELT CHANGE. LATER THE ENGINE TEMPERATURE GAUGE READ HIGH AND AFTER CHECKING THE FLUIDS NOTICED THE ANTIFREEZE LEVEL TO BE LOW AND TOPPED IT UP. A WEEK LATER WHILE DRIVING ON THE HIGHWAY STEAM STARTED COMING OUT OF THE HOOD. I NOTICED THE PINK FLUID HAD ALSO LEAKED OUT OF A TUBE (LOOKED LIKE A RELIEF TUBE) ON THE DRIVER SIDE. RADIATOR LEVEL WAS LOW. THE TRANSMISSION FUEL LOOKED PINKISH AND READ ABOUT SIX INCHES ABOVE THE MAX LEVEL ON THE DIPSTICK. TRANS FLUID WAS MILKY PINK, THICK, AND HAD GRAINY DEPOSIT. TOOK THE VAN TO THE AUTOLAND DEALER IN SPRINGFIELD, NJ TO DIAGNOSE THE PROBLEM AND TO HAVE THE WATER PUMP AND TIMING BELT CHANGE AT THE SAME TIME. HAD TO LEAVE THE VAN OVERNIGHT. I PICKED UP THE VEHICLE WITH A NEARLY $2000 BILL FOR REPAIRS (BRAKES, TIRE ROTATION, TIMING BELT AND WATER PUMP) OTHER THAN CHANGING THE TRANS. FLUID OR TELLING ME WHAT WAS WRONG. DEALER SAID SOMEONE PUT ADDITIVE TO THE FLUID???. NOTE THAT ONLY AUTOLAND HAD BEEN SERVICING THE VEHICLE. THEY REFUSED TO CHANGE THE TRANS FLUID. "I AM NOT TOUCHING THAT." THE DEALER SAID. I NOW KNOW FROM A LOCAL TRANS REPAIR SHOP THAT THE RADIATOR WAS LEAKING COOLANT INTO THE TRANS FLUID. A KNOWN PROBLEM WITH RADIATORS ON TOYOTA VEHICLES THAT HAD A RECALL. I NEVER RECEIVED NOTICE OF THE RECALL. I NOW HAVE AN ESTIMATED $4,000 PROBLEM TO REPLACE THE RADIATOR AND TRANSMISSION THAT COULD HAVE BEEN PREVENTED IF AUTOLAND HAD DONE ITS JOB PROPERLY AND NOT REFUSED TO CHANGE THE TRANS. FLUID. I AM VERY DISAPPOINTED WITH TOYOTA AND WITH AUTOLAND'S SERVICE. *TR

NHTSA ID

10712847

Incident

Mar 27, 2015

Mileage

121,482 mi

THE OUTSIDE TEMPERATURE WAS BELOW 32 AND IT WAS CLOSE TO 25 OR SO. WHEN I WAS DRIVING THE CAR AT 40 MPH WITH ENGINE TEMP STILL SLIGHTLY ABOVE COLD(NOT AT OPTIMAL WHICH IS ALMOST HALF WAY) AND SLOWED DOWN BY USING GENTLE BRAKES(NOT HARD BRAKES). JUST BEFORE THE VEHICLE COMES TO A FULL STOP, THERE IS UNINTENDED ACCELERATION AND I COULD SEE EVEN THE RPM(SCALE) TO SPIKE TEMPORARILY. THIS HAS BEEN HAPPENING EVERY TIME WHEN OUTSIDE TEMP IS COLD AND VEHICLE IS DRIVEN WITH COLD OR SLIGHTLY ABOVE COLD ENGINE TEMPERATURE. THERE IS A RISK OF HITTING ANOTHER VEHICLE OR MEETING ACCIDENT IF MISJUDGE MY BRAKING BECAUSE OF THIS PROBLEM.. PLEASE NOTE : THIS PROBLEM DISAPPEARS WHEN ENGINE TEMPERATE IS AT OPTIMAL AND I HAVE DRIVING A HONDA ACCORD 2008 EXL FOR LAST 7 YEARS(WAS BOUGHT NEW ONE), I NEVER HAD EXPERIENCED THIS PROBLEM IN THAT CAR EVEN WHEN DRIVEN WITH COLD ENGINE. *TR

NHTSA ID

10689426

Incident

Nov 24, 2014

Mileage

120 mi

FAN BELT STARTED SQUEALING UPON ENGINE START, TOOK TO DEALER AND REPLACED SERPENTINE BELT. SEVERAL MONTHS LATER GROANING NOISE STARTED COMING FROM ENGINE, SUSPECTED MISALIGNED BELT OR BAD PULLEY. TOOK VEHICLE TO THE DEALER AND THEY FOUND WEAR ON THE EXTERIOR OF THE TIMING BELT COVER CAUSED BY THE PARTIAL SEPARATION OF THE CRANKSHAFT PULLEY. SEVERAL REPORTS ONLINE OF OWNERS EXPERIENCING THIS PROBLEM WITH TOYOTAS. CHECKED WITH DEALER AND TOYOTA CUSTOMER SERVICE AND THEY CLAIM MY VIN IS NOT COVERED BY THE RECALL THEY ISSUED IN 2011 FOR THE VERY SAME FAILURE I AM EXPERIENCING (11V539000). HOW IS IT POSSIBLE THAT A KNOWN DEFECT IN THEIR VEHICLES CAN BE EXCLUDED BECAUSE THEIR EXPERTS HAVE MADE THE DETERMINATION THAT THE "CAUSE" WAS A PROBLEM AT ONE FACTORY OR PART SUPPLIER WHEN OTHER OWNERS THAT DON'T FALL INTO THE SPECIFIC PARAMETERS HAVE HAD THE VERY SAME PROBLEM AND WERE FORCED TO PAY FOR REPAIRS OUT OF POCKET? *TR

NHTSA ID

10609448

Incident

Jul 9, 2014

Mileage

70,010 mi

COMPLETE LOSS OF POWER WHILE IN MOTION ENTERING FREEWAY. PREVIOUSLY HAD NOTICED STEERING DIFFICULTY AT TIMES AND ENGINE LIGHT GOING ON, BUT HAD ALWAYS STOPPED AFTER A SHORT WHILE. AFTER THE FAILURE IT WAS DIAGNOSED AS FAILURE OF CRANK SHAFT PULLEY. WE FOUND THAT TOYOTA HAD DONE A RECALL FOR THIS ISSUE, BUT HAD NOT INCLUDED OUR VEHICLE IN THE RECALL OR NOTIFIED US. TOYOTA DENIED COVERAGE OF THE REQUIRED REPAIR. DRIVER AND TWO SMALL CHILDREN IN CARE AT TIME OF FAILURE, JUST ABOUT TO ENTER FREEWAY. OVER $800 IN REPAIRS. *TR

NHTSA ID

10573389

Incident

Jun 2, 2013

Mileage

129,000 mi

THERE IS A CRACK IN MY TOYOTA SIENNA 2004 RADIATOR AND THE COOLANT IS LEAKING. I RECEIVED A LETTER FROM TOYOTA WITH INFORMATION THAT THEY HAD RECEIVED REPORTS OF CRACKS IN RADIATORS IN 2004 AND 2005 TOYOTA SIENNAS. AS A RESULT OF THESE REPORTS TOYOTA WAS EXTENDING THE WARRANTY ON THESE RADIATORS TO 6 YEARS OR 72,000 MILES FROM THE IN-SERVICE DATE. SINCE I NOTICED THE CRACK IN THE RADIATOR IN MY 2004 TOYOTA SIENNA WHEN IT HAD 85,000 MILES, TOYOTA HAS REFUSED TO PAY EVEN A % OF THE COST OF REPLACING THE RADIATOR. I BOUGHT THE TOYOTA SIENNA AND PAID THE HIGHER PRICE BECAUSE OF TOYOTA'S REPUTATION FOR USING VERY HIGH QUALITY PARTS IN ITS CARS. I PREVIOUSLY OWNED A TOYOTA CAMRY AND HAD ALMOST 200,000 MILES ON IT. I DID NOT HAVE ANY PROBLEMS WITH THE RADIATOR IN MY TOYOTA CAMRY. I CALLED TOYOTA'S CUSTOMER SERVICE DEPARTMENT ABOUT THIS PROBLEM AND THEY REFUSED TO DO ANYTHING ABOUT IT, SAYING THAT THE CAR IS OUT OF THE WARRANTY PERIOD SINCE IT HAS 85,000 MILES. CLEARLY, THE CRACK IN MY 2004 TOYOTA SIENNA IS DIRECTLY DUE TO THE DEFECTIVE RADIATOR. SO MANY 2004 AND 2005 TOYOTA OWNERS ARE HAVING PROBLEMS OF CRACKED RADIATORS AFTER THE EXPIRATION OF THE EXTENDED WARRANTY PERIOD OF 6 YEARS OR 72,000 MILES. THE ARBITRARY EXTENDED WARRANTY PERIOD OF 6 YEARS AND 72,000 MILES DOES NOT PROTECT THE TOYOTA SIENNA OWNERS FROM THE DEFECTIVE RADIATOR BECAUSE IN MOST CASES THE RADIATOR WILL CRACK JUST AFTER THE EXTENDED WARRANTY HAS EXPIRED. TOYOTA SHOULD TAKE RESPONSIBILITY FOR USING A DEFECTIVE RADIATOR AND AT LEAST REIMBURSE OWNERS 50% TO 70% OF THE COST OF REPLACING THE DEFECTIVE RADIATOR WHEN IT CRACKS AFTER 72,000 MILES. *TR

NHTSA ID

10556981

Incident

Mar 14, 2013

Mileage

85,000 mi

PASSENGER SIDE SLIDING DOOR CABLE SNAPPED AND WILL NOT OPEN. PASSENGERS CAN BE TRAPPED IN THE VAN AND NOT ABLE TO GET OUT. THIS IS A KNOWN PROBLEM WITH TOYOTA SIENNA MINIVANS WITH ELECTRIC DOORS. IN ADDITION, THE MOTOR IS OFTEN KNOWN TO FAIL. THE THE CABLE HAS A BLACK SHEATHING THAT IS INADEQUATE AND WEARS CAUSING IT TO JAM IN THE PULLEY AND BREAK OR EXPOSING IT TO LATER CORROSION AND THEN IT WILL BREAK AS WELL. TOYOTA HAS KNOWN OF THIS PROBLEM FOR YEARS AND DOES NOT ISSUE A RECALL. YOU ONLY NEED TO CHECK THE TOYOTA FORUM TO CONFIRM THE PROBLEM WITH MANY OWNERS REPORTS. REPAIRS RUN $1,200 TO $2,000 AT THE TOYOTA DEALER. *TR

NHTSA ID

10551447

Incident

Nov 1, 2013

Mileage

170,000 mi

TL* THE CONTACT OWNS A 2004 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE STARTING THE ENGINE, HE NOTICED AN ABNORMAL SQUEAKING NOISE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE CRANK SHAFT PULLEY HAD DETACHED FROM THE VEHICLE. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBER: 11V539000 (ENGINE AND ENGINE COOLING) BUT WASW ADVISED BY THE MANUFACTURER THAT THE VIN WAS NOT INCLUDED IN THE RECALL. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 110,000.

NHTSA ID

10537853

Incident

Jun 29, 2013

Mileage

110,000 mi

MY WIFE AND I PURCHASED A 2004 TOYOTA SIENNA WITH 25,000 MI. IT WAS A USED VEHICLE WHEN WE PURCHASED IT. WHEN WE PURCHASED THE VEHICLE WE ALSO PURCHASED A 7 YEAR, 100,000 MILE BUMPER TO BUMPER EXTENDED WARRANTY THAT HAS CURRENTLY EXPIRED. APPROXIMATELY THREE MONTHS AGO WE NOTICES THAT WHEN COMING TO A STOP THERE WAS A THUMP BELOW THE VEHICLE WHICH WE ORIGINALLY THOUGHT WAS THE TRANSMISSION. MY WIFE AND I BROUGHT IT TO A LOCAL SHOP AND EXPLAINED THAT WHEN THE VEHICLE HITS APPROXIMATELY 15 MPH WE FEEL A THUMP BELOW THE VEHICLE TOWARDS THE CENTER. REGARDLESS OF BREAKING, ACCELERATING OR COASTING WE FELT A THUMP. WE HAD PROBLEMS WITH THE TRANSMISSION WHILE THE VEHICLE WAS UNDER WARRANTY. WE BROUGHT IT TO TOYOTA FOR REPAIR. TOYOTA REPLACED THE TRANSMISSION ?UNDER WARRANTY? AT APPROXIMATELY 95,000 MILES WITH A BRAND NEW TRANSMISSION. WE CURRENTLY HAVE THE VEHICLE AT A LOCAL REPAIR SHOP. THEY HAVE INFORMED US THAT THE WAY THAT THE TOYOTA TRANSMISSION WORKS IS THAT THEY HAVE A PIPE THAT RUNS THROUGH THE RADIATOR. THAT ALLOWS FOR COOLING FOR THE TRANSMISSION FLUID. WE WERE INFORMED THAT DUE TO AGE, THE PIPE SIMPLY CORRODED AND CRACKED CAUSING COOLANT TO LEAK INTO THE TRANSMISSION AND TRANSMISSION FLUID TO LEAK INTO THE RADIATOR. WE REQUESTED THE SIMPLEST SOLUTIONS AND WE WERE TOLD TO REPLACE THE RADIATOR AND FLUSH THE TRANNY AND HOPE FOR THE BEST. THE REPAIR SHOP HAS HAD THE VEHICLE FOR APPROXIMATELY A MONTH BECAUSE THE ORDERED AN AFTERMARKET RADIATOR IN AN EFFORT TO SAVE US MONEY. THE AFTER MARKER RADIATOR DID NOT FIT. I WAS INFORMED THIS PAST WEEKEND THAT AFTER SPEAKING WITH TOYOTA, TOYOTA HAS RECOGNIZED THIS ISSUE AND HAS DISCONTINUED THE STANDARD RADIATORS AND A NEW MODEL WITH MOUNTS NOW NEEDS TO BE ORDERED. OUR FEELING IS THAT THIS IS A SAFETY ISSUE AS WELL AS A DESIGN FLAW. WHAT CAN BE DONE? *TR

NHTSA ID

10523666

Incident

May 10, 2013

Mileage

135,000 mi

THIS IS A COMPLAINT, NOT NECESSARILY A SAFETY ONE, BUT A COMPLAINT NONETHELESS. THE AIR CONDITIONING WENT OUT TWICE & HAD TO BE REPLACED TWO TIMES. VERY EXPENSIVE REPAIR. DISAPPOINTED IN MY TOYOTA. *TR

NHTSA ID

10521567

Incident

Jun 1, 2009

Mileage

90,000 mi

TL* THE CONTACT OWNS A 2004 TOYOTA SIENNA. THE CONTACT STATED THAT THERE WAS A SIGNIFICANT AMOUNT OF ANTI FREEZE MISSING FROM THE RADIATOR RESERVOIR. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 166,000. *TR

NHTSA ID

10521108

Incident

Jun 15, 2013

Mileage

166,000 mi

WHILE DRIVING THERE WAS A VERY LOUD SCREECH FROM THE MOTOR, ON AND OFF, THEN THE POWER STEERING WENT OUT, VERY HARD TO TURN STEERING WHEEL, LUCKILY I WAS ABLE TO FORCE IT THE FEW MILES LEFT HOME. THEN I NOTICED THE A/C WAS NOT COLD, THIS WAS INTERMITTENT, NOW, NO A/C AT ALL. JUST HOT AIR. THIS STALLED OF FAILED WHILE IN TRAFFIC, I COULD HAVE HAD SERIOUS PROBLEMS LIKE GETTING HIT BECAUSE I COULD NOT TURN THE VEHICLE READILY, OR EASILY. *TR

NHTSA ID

10514655

Incident

May 6, 2013

1. RIGHT SIDE, PASSENGERS DOOR CAN NOT OPEN (JAM). 2. TAKE THE KEY OUT COMPLETELY, BUT VEHICLE (ENGINE) STILL RUNNING. *TR

NHTSA ID

10479515

Incident

Oct 9, 2012

Mileage

89,000 mi

I WAS DRIVING MY VAN WHEN I NOTICED THE A/C WAS NOT BLOWING COLD AIR, IT WAS MORE COOL THAN COLD. THEN IT WOULD BLOW HOT AIR ON OCCASION THEN IT WOULD EVENTUALLY BLOW COLD AIR AGAIN. EVENTUALLY THE AIR WASNT COLD AT ALL AND IT WOULD CONSTANTLY BLOW HOT AIR. THIS WAS VERY UNCONFORTABLE DUE TO THE FACT THAT IT WAS SUMMER AND I LIVE IN FLORIDA. I TOOK IT TO A MECHANIC AND HE TOLD ME IT WAS THE COMPRESSOR, SO I HAD IT REPLACED. THE AC WAS BLOWING COLD AGAIN, THIS LASTED FOR ABOUT 12 MONTHS. THE SAME ISSUE STARTED TO HAPPEN AGAIN. FIRST COOL AIR THEN ON AND OFF HOT AIR AND NOW NOTHING BUT HOT AIR. I TOOK IT BACK TO MY MECHANIC AND HE TOLD ME IT MIGHT BE THE RELAYS, I REPLACED BOTH OF THE RELAYS AND THE AIR IS STILL NOT COLD. I THEN FOUND OUT THAT IT WAS THE COMPRESSOR AGAIN. I CANNOT AFFORD TO REPLACE THE COMPRESSOR AND IM AFRAID TO REPLACE IT IF THE PROBLEM WILL JUST CONTINUE. I FEEL A RECALL FOR THE FAULTY PART IS IN STORE. I AM AWARE THE VEHICLE ITSELF IS A FEW YEARS OLD BUT MY OTHER VEHICLE IS A 99 AND I HAVE NO PROBLEMS WITH THE AC OTHER THAN I HAVE TO TURN IT OFF AT TIMES BECAUSE ITS TOO COLD. IVE GONE TO ONLINE FORUMS AND READ UP ON THE 2004 TOYOTA SIENNAS AND FOUND OUT THAT I AM NOT THE ONLY ONE WITH AN AC PROBLEM. THIS PROBLEM IS WITH MANY MORE VANS. *TR

NHTSA ID

10460844

Incident

Jun 1, 2011

Mileage

90,000 mi

RADIATOR LEAK, CONTINUOUS PROBLEM. COULD CAUSE CATASTROPHIC ENGINE FAILURE. TOYOTA WILL NOT ADDRESS REPAIR. *TR UPDATED 3/01/2012 *LN

NHTSA ID

10405761

Incident

Jun 8, 2011

Mileage

108,000 mi

MY 2004 SIENNA HAS LEAK IN WATER PUMP WITH 66K MILE. *TR

NHTSA ID

10371230

Incident

Dec 11, 2010

Mileage

66,000 mi

2004 TOYOTA SIENNA - AIR CONDITIONING COMPRESSOR BLOWS CAUSING ALARMING NOISES WHILE DRIVING. *TR

NHTSA ID

10347505

Incident

Jul 20, 2010

Mileage

100,100 mi

A/C WENT OUT AT 70K FOR MY 2004 TOYOTA SIENNA. NEVER HAD A PROBLEM UNTIL NOW OVER $3000 TO FIX. *TR

NHTSA ID

10339234

Incident

Jun 1, 2010

Mileage

70,000 mi

I HAVE 2 DIFFERENT COMPLAINTS. DRIVER SIDE SEAT HEATER BURNED LEGS OF 3 DIFFERENT DRIVERS BEFORE COMPLETE FAILURE. HEAT WAS NOT ADJUSTABLE. DRIVER AND PASSENGER HEATERS STOPPED WORKING AT SAME TIME. TOOK TO DEALER, RECOMMENDED NEW HEATING ELEMENT ($1000+). OPTED NOT TO FIX. 2ND COMPLAINT, CHECK ENGINE, VSC, AND TRAC OFF LIGHTS ILLUMINATED. THE VAN HAS BEEN SENT TO THE DEALER ON AT LEAST 3 OCCASIONS. GAS CAP HAS BEEN REPLACED SEVERAL TIMES, SPARK PLUGS CHANGED. WILL GO OFF FOR BRIEF PERIODS, BUT ALWAYS TO RETURN. THIS HAS BEEN GOING ON FOR AT LEAST 30,000 MILES. I COULD LIVE WITH THE CHECK ENGINE LIGHT ON, BUT IF THE OTHER LIGHTS ARE ILLUMINATED, THAT INDICATES THESE COMPONENTS ARE NOT WORKING-KIND OF IMPORTANT-SKID CONTROL & TRACTION CONTROL!! THERE ARE MANY COMPLAINTS OUT THERE ON BLOGS, DOESN'T LOOK LIKE ANYONE HAS FILED ANY REPORTS WITH YOUR OFFICE REGARDING THIS SAME PROBLEM, WHICH IS TOO BAD BECAUSE IT'S OBVIOUSLY A PROBLEM NOT WITH JUST SIENNA BUT SEVERAL OTHER MODELS AS WELL. EXTREMELY FRUSTRATING WHEN EVEN THE DEALER CAN'T DETERMINE WHAT THE PROBLEM REALLY IS!! WE PURCHASED THIS VEHICLE BECAUSE OF THE SAFETY FEATURES. NOT SO SURE ABOUT IT IF THEIR SAFETY FEATURES MALFUNCTION! *TR

NHTSA ID

10331830

Incident

May 21, 2010

Mileage

60,000 mi

2004 TOYOTA SIENNA. ORIGINAL RADIATOR REPLACED DUE TO LEAK @ 21K MILES. RADIATOR REPLACED A SECOND TIME DUE TO LEAKS AT TOP L & R SIDES, NEAR END TANKS @ 80K MILES. RADIATOR IS NOW IN NEED OF ANOTHER REPLACEMENT @130K MILES DUE TO LEAKS AT THE SAME LOCATION. ALL RADIATORS HAVE BEEN REPLACED BY TOYOTA DEALER. *TR

NHTSA ID

10327366

Incident

Apr 25, 2010