2004 Toyota Sienna Complaint Log

LIFTGATE STRUTS ON 2004 TOYOTA SIENNA VAN DO NOT HOLD THE LIFTGATE OPEN. ONCE THE DOOR IS OPENED NOTHING SUPPORTS THE WEIGHT AND THE DOOR SLAMS SHUT. EXTEMELY DANGEROUS FOR CHILDREN OR ADULTS UNLOADING THE REAR HATCH. STRUTS HAVE FAILED. TOYOTA REFUSES TO ACKNOWLEDGE THE PROBLEM. *JB

1) REAR LIFTGATE OPERATED NORMALLY - NO INDICATION OF POTENTIAL ISSUES. 2) REAR LIFTGATE STRUTS FAILED, CAUSING THE DOOR TO CLOSE UNEXPECTEDLY, HITTING MY WIFE WHILE SHE WAS UNDERNEATH THE LIFTGATE. LIFTGATE WILL NO LONGER STAY IN THE OPEN POSITION. USING THE POWER ASSISTED FEATURE TO OPEN THE LIFTGATE WORKS, BUT IT WILL CLOSE IMMEDIATELY AFTER THE OPENING MECHANISM DISENGAGES. 3) NO RESOLUTION FROM TOYOTA AMERICA CUSTOMER ASSISTANCE SINCE THE VEHICLE IS PAST 36,000 MILE WARRANTY (CURRENTLY @ 42,000 MILES). *JB

I HAVE A 2004 TOYOTA SIENNA, WHICH OVERALL I LOVE. IN THE PAST 3 MONTHS, THE TRUNK HATCH HAS STARTED TO NOT HOLD WHEN OPEN & RESIST OPENING AT TIMES. IT USED TO HOLD FOR LONGER, MAKING ME DELAY THE REPAIR. IT HAS PROGRESSIVELY GOTTEN WORSE, SO THAT NOW IT CLOSES WITHIN MOMENTS WITH A LOT OF FORCE. I HAVE NO CHOICE BUT TO REPAIR IT NOW, AT A COST OF $400, OR RISK SERIOUS INJURY TO MYSELF & 3 YOUNG CHILDREN. MY HUSBAND & I HAVE ALREADY BEEN BONKED ON THE HEAD & BACK REPEATEDLY. TOYOTA IS AWARE OF THE DEFECT, & THE OBVIOUS RISK TO CAR OWNERS (A MAJORITY OF WHOM HAVE YOUNG CHILDREN I WOULD GUESS AS IT IS A MINIVAN), BUT HAS NOT ISSUED A RECALL. INSTEAD THEY ARE PROFITING OVER THE DEFECT. I DON'T FAULT THE SERVICE DEALER THAT WE DEAL WITH, AS THEY HAVE ALWAYS BEEN HELPFUL & HONEST. I AM UPSET THAT THE TOYOTA CORP. WON'T ISSUE A RECALL. *TR

THIS IS FOR A 2004 TOYOTA SIENNA. THE DRIVER SIDE DOOR IS NOT CLOSING COMPLETELY. IT APPEARS THE WELDING FOR THE DOOR CHECK IS THE CULPRIT. THE DOOR DOES NOT FEEL SECURE WHEN CLOSED. I BROUGHT THE DOOR TO THE TOYOTA DEALERSHIP AND THEY SAID IT WAS OUT OF WARRANTY. YOU ARE SOL. I CALLED TOYOTA CUSTOMER SERVICE AND THEY TOLD ME TO CALL THE DEALERSHIP.

REAR HATCH SUPPORT CYLINDER FAILED. I PURCHASED A NEW CYLINDER AND REPLACED IT MYSELF. AT A COST OF $150.00 FOR ONE. I STARTED TO NOTICE THE PROBLEM WHEN MY AUTOMATIC REAR HATCH WOULD ONLY RAISE THE HATCH HALF WAY AND THEN RE-CLOSE THE HATCH. 2004 SIENNA XLE LIMITED. 45K *JB UPDATED 10/03/07 *TR

OUR VAN HAS POWER SLIDING DOORS. IN THE SUMMER OF 2006, THE DRIVER SIDE DOOR WAS OPENING WHEN THE CABLE SNAPPED. THE VAN WAS TAKEN TO THE LOCAL DEALER WHO WAS ABLE TO GET TOYOTA TO SUPPLY THE PART ($1,000) AND CHARGED APPROX. $300 FOR LABOR TO INSTALL NEW MOTOR & CABLE ASSEMBLY EVEN THOUGH THE VAN WAS OUT OF WARRANTY (APPROX. 65,000 MILES). IN THE SUMMER OF 2007, THE PASSENGER DOOR WAS OPENING WHEN THE CABLE ALSO SNAPPED. THE SAME DEALER TOLD US TO CONTACT TOYOTA DIRECTLY, WHICH I DID. THEY HAD US GO BACK TO THE DEALER WHO INFORMED US THAT IT WAS OUT OF WARRANTY AND WOULD NOT BE COVERED. CONTACTED TOYOTA AGAIN BUT WAS TOLD THE SAME INFORMATION THAT IT WAS NOT COVERED AND OUT OF WARRANTY. (APPROX. 90,000 MILES) *JB

THE POWER LIFTGATE OF MY 2004 TOYOTA SIENNA HAS FAILED. THE LIFTGATE HAS UNEXPECTEDLY CLOSED, BUT IS NOW INOPERABLE DUE TO STRUT FAILURE. THE LIFTGATE IS VERY HEAVY AND CLOSES WITH MUCH FORCE. *TR

LEFT REAR MANUAL SLIDING DOOR ON 2004 TOYOTA SIENNA MINIVAN WILL NOT OPEN FROM INSIDE OR OUT. 1ST OCCURRENCE WAS APPROXIMATELY AUGUST 2007. WAS REPAIRED AND BROKE AGAIN APPROXIMATELY MAY 2008. *TR

1. A DEFECTIVE WELD ON THE DRIVER SIDE DOOR CHECK ATTACHMENT CAUSED LOUD POPPING NOISE EVERY TIME THE DOOR WAS USED. PROBLEM PROGRESSED INTO A FULL FAILURE OF STRAP/CHECK MECHANISM. 2. PASSENGER SIDE SLIDER DOOR MOTOR FAILED, DOOR WOULD NOT OPEN AUTOMATICALLY. CABLE ON DOOR WAS REPAIRED UNDER WARRANTY, BUT SINCE COMPLETE DOOR MOTOR FAILURE HAPPENED AFTER WARRANTY EXPIRED, DEALER WOULD NOT CONSIDER IT RELATED PROBLEM. WE GOT THE SAME $1700 REPAIR QUOTE NOTED BY MANY OTHERS ONLINE. AFTER MUCH HAGGLING, TOYOTA RELUCTANTLY AGREED TO REPAIR IT FOR LABOR COSTS ONLY AND SUPPLY THE PART. DOOR HAS CHIPPED THE TINTED COATING OFF REAR QUARTER WINDOW AND STILL SOUNDS BALKY AT TIMES, ESPECIALLY WHEN IT'S COLD OUT. LOOKING AT OTHER SIMILAR REPORTS, THIS IS CLEARLY A DESIGN DEFECT. PLEASE MAKE TOYOTA RECALL THESE VANS AND MAKE GOOD ON THIS ISSUE! *TR

OUR FAMILY IS DEEPLY TROUBLED AND WORRIED ABOUT THE SAFENESS OF OUR 2004 TOYOTA SIENNA LE-8 EVERY TIME WE USE IT ON THE ROAD. OUR VAN HAS BEEN HAVING INTERMITTENT VSC, KICKING WHICH STARTED EARLY THIS YEAR. FIRST, IT WILL HESITATE TO ACCELERATE FOLLOWED BY VSC KICKING THEN AUTOMATIC BRAKING ENGAGES THEN SUDDEN PULL OF THE STEERING TO THE LEFT. THE VSC KEEPS FLASHING AND BEEPS CONTINUOUSLY UNLESS I SLOW DOWN TO AROUND 20MPH. I EVEN SHOWED THE DEALER COPIES OF SIENNA OWNERS COMPLAINTS WITH SIMILAR PROBLEM AND TSBS REGARDING YAW RATE SENSOR AND STEERING COLUMN SENSOR. BUT STILL COULD NOT FIX OR DUPLICATE THE PROBLEM. NOTHING WAS DONE TO CORRECT THE PROBLEM AND NO PARTS REPLACED OR REPAIRED. *TR

THE FUEL PIPE FROM THE TANK TO THE ENGINE ON MY 2004 TOYOTA SIENNA LE DISCONNECTED. I WAS DRIVING WITH MY KIDS AND STOPPED AT THE LIGHT, OUR CAR BEING THE FIRST IN THE RIGHTMOST LANE AT A BUSY INTERSECTION. WHEN THE LIGHT TURNED GREEN I PRESSED THE ACCELERATOR BUT THE CAR DIDN'T MOVE. I MADE SEVERAL MORE ATTEMPTS BUT IT WAS IN VAIN. THE MESSAGE ON THE SCREEN PANEL APPEARED AS A DISCHARGED BATTERY, WHICH AT THAT MOMENT PUZZLED ME VERY MUCH. I STARTED LOOKING AROUND, MAKING SIGNS TO THE VEHICLES BEHIND MINE TO TRY AND GET INTO THE OTHER LANE AS I CAN'T START MY CAR (THERE WERE FEW ANGRY DRIVERS). ONE STOPPED BY ME WHEN THE LIGHT TURNED RED AGAIN AND THEN SAID HE SMELLS GAS. AT THE SAME TIME A WOMAN AND HER OLDER TEENAGE DAUGHTER WERE RUNNING FROM ACROSS THE STREET WAIVING AND SHOUTING 'GET OUT OF THE CAR!'. SHE HELPED ME AND MY KIDS GET OUT AND TOLD US THAT WHILE DRIVING FROM THE OTHER SIDE SHE SAW WHEN THE GAS GUSHED FROM UNDER MY CAR. WELL THE REST IS KNOWN - 911, POLICE, FIRE TRUCK AND MY FAMILY SCARED AND BLESSED TO HAVE ESCAPED A HORROR. THE CAR WAS TOWED TO THE DEALER WHO TOLD ME THAT THE PIPE DISCONNECTED, THEY PUT IT BACK AND THAT THEY'VE NEVER ENCOUNTERED THIS PROBLEM. WHEN I ASKED ABOUT A WARRANTY ON THIS OR A FUTURE SIGN TO LOOK FOR, THE ANSWER WAS 'IT SHOULDN'T HAPPEN, IT CAN'T'. BUT IT JUST DID, RIGHT? I WANT TO MENTION THAT THE CAR HAS NEVER BEEN INVOLVED IN ANY ACCIDENTS AND IT'S VERY WELL CARED FOR. I HAD TO PAY FOR THE REPAIR OVER $100 WHICH I'M GUESSING TOYOTA WILL NEVER REFUND. I WILL FOREVER BE THANKFUL TO THAT WOMAN AND HER DAUGHTER WHO QUITE POSSIBLE SAVED OUT LIVES. *TR

TOYOTA SIENNA (2004) RUN FLAT TIRES. REPLACED IN APRIL 2006 UNDER THE CLASS ACTION LAW SUIT. WORN AGAIN PREMATURELY. LAST TIRE ROTATION THE FRONT TIRES WERE WORN BAD, THE BACK ONES WERE FINE. NOW, ONE MONTH LATER, THE FRONT TIRES (WHICH USED TO BE ON THE BACK LAST MONTH) ARE NOW WORN. WHEN THE TIRES WERE REPLACED, I WAS TOLD THAT THEY WERE RE-ENGINEERED AND THERE IS TO BE NO WORRY. I HAVE CHECKED THE AIR PRESSURE MORE THAN THE RECOMMENDED AMOUNT OF EVERY OTHER GAS FILL UP AND THEY HAVE HELD THE AIR. IS IT THE TIRES OR THE CAR? TOYOTA SAYS THEY WILL NOT REPLACE AGAIN. IT WAS ONLY 15,500 MILES NOW ALL 4 WILL NEED TO BE REPLACED. I DON'T UNDERSTAND THE PROBLEM IF THEY ARE HOLDING THE PRESSURE AND THAT IS WHAT THE DEALER AND TOYOTA TELL ME IS THAT I MUST KEEP THE PRESSURE AT 35, IT IS! *TR

TL*THE CONTACT OWNS A 2004 TOYOTA SIENNA. WHILE DRIVING 70 MPH, THE PASSENGER SIDE REAR TIRE BLEW OUT. THE FOLLOWING DAY, THE FRONT DRIVER SIDE TIRE CRACKED. THE ROAD CONDITIONS WERE DRY. THERE WAS NO CRASH OR PROPERTY DAMAGE. THE TIRES WERE DUNLOP, SIZE P215/65R16. THE CURRENT AND FAILURE MILEAGES WERE 35,000.

FAILURE OF THE LIFTGATE STRUTS ON MY 2004 TOYOTA SIENNA. FOR ABOUT TWO WEEKS, THE LIFTGATE FAILED TO OPEN FULLY. THEN ONE MORNING, MY SON ATTEMPTED TO OPEN THE LIFTGATE AND IT FAILED COMPLETELY, NEARLY CRUSHING HIM. HE WAS ABLE TO MOVE AND LET THE DOOR CLOSE WITHOUT INJURY. *JB

FAILURE OF THE LIFTGATE STRUTS ON MY 2004 TOYOTA SIENNA. TODAY I WAS OPENING MY REAR DOOR TO REMOVE AN ITEM, I CONTINUED TO FULLY OPEN THE REAR DOOR AND RELEASED THE DOOR WHEN IT SUDDENLY BEGAN TO CLOSE RAPIDLY AT FULL FORCE. I PUSHED MY TWO CHILDREN, 1 AND 4, OUT OF THE WAY OF THE FALLING DOOR TO PREVENT IT FROM FALLING ON THEIR HEADS. NO ONE WAS INJURED AND THERE WAS NO WARNING. I WILL CONTACT TOYOTA TO FIX THE PROBLEM IF NOT I WILL HAVE TO PAY FOR IT MYSELF. IT IS SOMETHING THAT I USE DAILY AND IT MUST BE FIXED. *TR

REAR LIFTGATE ON 2004 TOYOTA SIENNA FAILED. IT WAS IN UP POSITION AND SUDDENLY CAME DOWN AND I WAS UNABLE TO GET IT UP WHILE I WAS UNDER IT LOADING GROCERIES. THE WEIGHT OF THE DOOR HIT MY SHOULDER FIRST AND KNOCKED ME INTO THE BACK OF THE VAN. I WAS THEN ABLE TO PUSH IT BACK UP AFTER I DROPPED THE GROCERY BAGS. THE DOOR CAME DOWN VERY FAST AND FORCEFUL,LY. I WAS SORE BUT VERY THANKFUL THAT MY 4 YEAR OLD WASN'T UNDER THE LIFT GATE WITH ME.*AK

I HAVE OWNED TOYOTAS ALL MY LIFE, SO WHEN I BOUGHT MY 2004 TOYOTA SIENNA XLE, I THOUGHT I WAS GETTING A QUALITY MINI VAN. BEGINNING IN JULY 2007, THE AUTOMATIC DOORS ON BOTH SIDES BEGAN NOT WORKING. SOMETIMES THEY WOULD CLOSE, SOMETIMES I WOULD MANUALLY HAVE TO SHUT THEM. I BROUGHT THE VAN TO TOYOTA AND WAS TOLD THAT IT WOULD BE $1500 PLUS TO FIX IT. NOT IN MY BUDGET, I DECIDED TO DEAL WITH THE PROBLEM. A YEAR LATER, MY VAN WAS IN FOR IT'S 60,000 MILE CHECK UP AND I WAS TOLD THAT THE HINGES ON THE DOORS NEEDED REPLACING AND IT WOULD COST $500. I REPORTED THIS DISCREPANCY TO THE SERVICE MANAGER AND WAS GIVEN THE RUN AROUND AS TO WHAT THE PROBLEM WITH THE DOORS REALLY IS. I STILL HAVE THE PROBLEM AND I HOPE THAT THIS IS NOT THE BEGINNING OF A SERIES IN COSTLY REPAIRS THAT I WILL HAVE TO MAKE. MAYBE IT'S TIME TO TRADE IN MY MINI VAN. *TR

POWER SLIDING DOOR ON RIGHT SIDE (DRIVER SIDE) OF VEHICLE FAILED. CABLE BROKE AND DOOR WOULD NOT CLOSE. ATTEMPTED TO MANUALLY CLOSE THE DOOR BUT CABLE HAD JAMMED THE DOOR IN THE OPEN POSITION. WIFE DROVE THE CAR HOME THIS WAY. I CUT THE BROKEN CABLE AND REMOVED THE ENDS SO DOOR FUNCTIONS MANUALLY. $1200 DOLLARS TO REPAIR DOOR. I ELECTED NOT TO SPEND $1200 TO REPAIR A CABLE. CABLE IS PART OF AN ASSEMBLY THAT INCLUDES THE MOTOR. I INSPECTED THE REASON FOR THE PREMATURE FAILURE AND DETERMINED THE REASON THE CABLE BROKE WAS BECAUSE OF A DOOR REAR HINGE FAILURE. PIN HAD WORN OUT SLIGHTLY CAUSING THE REAR OF THE DOOR TO SAG AND THEREFORE CATCHING THE CABLE AND BREAKING IT. I REPLACED THE HINGE MYSELF COSTING $100 AND THE DOOR FUNCTIONS MANUALLY. THIS CAR WAS MAINTAINED REGULARLY BY TOYOTA AND DOOR HINGES GREASED. A HINGE SHOULD NEVER HAVE FAILED AT 4 YEARS OF LIFE. WHAT KIND OF STEEL IS TOYOTA USING? *TR

I PURCHASED A 2004 TOYOTA SIENNA IN JULY OF 2007 IMMEDIATELY HAD PROBLEMS WITH THE BACK HATCH HYDRAULICS. TOYOTA FIXED THE HATCH BECAUSE IT WAS UNDER WARRANTY. THE SLIDING PASSENGER DOORS WOULD BE DELAYED BUT WOULD WORK. I DISCUSSED IT WITH SERVICE BUT THE DOOR WAS WORKING SO IT WAS NOT DOCUMENTED IN MY FILE. TOYOTA THEN SENT A NOTICE ABOUT THE SPARE TIRE RACK. I HAD THAT REPLACED. THE SLIDING DOOR CABLE SNAPPED. TOYOTA ISSUED AN EXTENDED WARRANTY FOR SIENNAS WITH LESS THAN 120,000 MILES OR 9 YEARS. I MET THE NINE YEAR CRITERIA BUT HAD TOO MANY MILES ON THE CAR. TOYOTA KNOWS MILES ON THE CARE HAVE NOTHING TO DO WITH THE CABLE MALFUNCTION. IT IS A MATERIAL AND DESIGN PROBLEM BUT THEY REFUSE TO OWN UP TO THE PROBLEM. I WANT TO TOYOTA TO REPAIR THE DOORS ON THE VAN. THE DOOR WILL JUST COME OPEN. THEN THE BATTERY DIES BECAUSE THE LIGHT WILL DRAIN THE CAR. WE ARE LEFT STRANDED IN THE COLD OF WINTER. THE COST FOR TOYOTA TO REPAIR THE DOOR IS $2,300.00. THIS IS ABSURD!! THE PROBLEM IS MATERIALS AND DESIGN. TOYOTA SHOULD NOT BE ALLOW TO MAKE ITS CUSTOMERS PAY FOR THEIR ERRORS NOR SHOULD THEY BE ALLOWED TO ENDANGER THE SAFETY AND LIVES OF ITS CUSTOMERS. *TR

DRIVER'S SIDE PASSENGER DOOR INTERNAL MECHANISM IS BROKEN. AUTO BODY SHOP STATES THEY HAVE SEEN THIS FAILURE ON MULTIPLE TOYOTA SIENNA VANS OF THIS MODEL ERA 2004 AND LATER. WILL COST $1,500 TO REPAIR INCLUDING WELDING OF FAILED METAL PART IN INTERNAL DOOR MECHANISM. UPDATED 11/1/07 *TR

THE VAN WAS SITTING IN THE GARAGE. WHEN THE DOOR WAS OPENED WITH THE REMOTE CONTROL DEVICE, THE CABLE BROKE AND JAMMED THE DOOR OPENED. IT TOOK 1 HOUR TO GET THE DOOR CLOSED. IT HAS BEEN JAMMED SHUT EVERY SINCE. THE COST TO REPAIR IT IS $1500. *TR

*****2004 SIENNA POWER SLIDING DOOR FELL OFF********I PURCHASED A 2004 TOYOTA SIENNA MINIVAN BRAND NEW IN MARCH 2003. I LOVED THE VAN UNTIL THE SUMMER OF 2007. WE HAD THE OPTIONAL POWER REAR PASSENGER SLIDING DOOR. AT THE BEGINNING OF SUMMER, THE POWER CABLE SNAPPED SO WE CHANGED THE DOOR SETTING TO MANUAL UNTIL WE COULD HAVE IT REPAIRED. THIS MANUAL SETTING WAS WORKING FINE AND WE TOOK A 2 HOUR ROAD TRIP TO ATTEND A LACROSSE TOURNAMENT FOR OUR SON ABOUT A WEEK LATER.***** OUR DAUGHTER WHO WAS 4 AT THE TIME ALWAYS SAT IN THE PASSENGER SEAT FURTHEST TO THE BACK. AFTER WE ARRIVED AT THE TOURNAMENT, MY HUSBAND WENT BACK TO THE VAN TO RETRIEVE A CHAIR. HE UNLOCKED THE VAN, OPENED THE SIDE, REAR PASSENGER DOOR AND THE DOOR WENT ROLLING DOWN THE TRACK, DISENGAGED, SLID OFF THE TRACK, ALL THE WAY BACK AND SMASHED IN THE SMALL REAR SIDE WINDOW NEXT TO WHERE MY DAUGHTER NORMALLY SAT COVERING THE ENTIRE BACK INTERIOR WITH GLASS.****** IT TOOK 90 MINUTES TO GET THE DOOR BACK ONTO THE TRACK AND ENGAGED SO THAT WE COULD DRIVE HOME. I CONTACTED TOYOTA IMMEDIATELY THE NEXT DAY TO FIND OUT WHAT COULD BE DONE TO HAVE THE CAR FIXED AND WAS TOLD THAT I NEEDED TO FILE A CLAIM, WHICH I DID. AFTER THE CLAIM WAS FILED I WAS TOLD THAT THIS WAS NOT A PROBLEM WHICH HAD BEEN REPORTED AND THAT THERE WAS NO RECALL IN EFFECT, SO TOYOTA WOULD NOT COVER PAYMENT TO REPAIR THE DAMAGE. THEY SUGGESTED I CALL THE DEALERSHIP WHERE I HAD PURCHASED THE VAN TO SEE IF THEY WERE WILLING TO HELP. I CONTACTED MY DEALER?S SERVICE DEPARTMENT AND GOT THE SAME RESPONSE THAT NOTHING COULD BE DONE EXCEPT FOR US TO PAY OUT OF POCKET FOR THE REPAIR.********** SINCE WE CANNOT AFFORD THE EXTENSIVE BODY/MECHANICAL REPAIRS, THE DOOR MUST STAY CLOSED NOW BECAUSE IF OPENED, IT FALLS OFF. *TR

DOOR CHECK FAILURE ON THE DRIVERS SIDE DOOR. THIS CAUSES LOUD POPPING NOISES WHEN OPENING AND CLOSING THE DOOR. *JB

2004 SIENNA, HAD TO REPLACE BRAKE PADS TWICE. BROUGHT VEHICLE IN FOR 30,000 MILE CHECK, AND WAS TOLD THAT THEY WERE AGAIN 75% WORN OUT AND NEED TO BE REPLACED FOR THE THIRD TIME. ALSO, HAD TO REPLACE ALL FOUR TIRES AT 18,000 MILES. *AK

CONDENSATION BUILDS UP IN THE PASSENGER HEADLIGHT. THE CONDENSATION REDUCES THE EFFECTIVENESS OF THE HEADLIGHT, CREATING A DARK SPOT ON THE RIGHT SIDE. THIS IS A COMMON PROBLEM WITH 2004 MODELS. THERE ARE HUNDREDS OF THREADS ON TOYOTA/SIENNA FORUMS ONLINE WHERE OWNERS ARE HAVING THE EXACT SAME PROBLEM. TOYOTA IS IGNORING THIS SAFETY PROBLEM. *TR

THE AUTOMATIC SLIDING DOORS ON MY TOYOTA SIENNA DO NOT ALWAYS CLOSE. I FIRST NOTICED IT IN THE SUMMER OF 2007 WHEN OCCASIONALLY THE DRIVERS SIDE DOOR WOULD ATTEMPT TO CLOSE BUT THEN WOULD RE-OPEN. I TOOK THE VEHICLE TO THE DEALER IN DECEMBER 2007 AND IT WAS DETERMINED THAT THE REAR HINGE PIN AND BUSHING WAS WORN OUT CAUSING THE REAR OF THE DOOR TO SAG AND NOT ALLOW IT TO BE CLOSED WITHOUT MANUAL INTERVENTION. IF THERE IS NO MANUAL INTERVENTION AND YOU JUST TRY TO CLOSE IT BY PUSHING THE BUTTON THE DOOR ATTEMPTS TO CLOSE A SECOND TIME BUT STILL DOES NOT CLOSE ALL THE WAY AND WILL NOT AUTOMATICALLY RE-OPEN. THUS YOU THINK THE DOOR IS CLOSED BUT IN REALITY IT IS STILL NOT. I CONTACTED TOYOTA'S CUSTOMER CARE ABOUT THE PROBLEM BUT THEY ARE NOT INTERESTED IN EVEN TAKING A FURTHER LOOK SINCE THE VEHICLE IS OUT OF WARRANTY. IF THE PINS AND BUSHINGS CONTINUE TO WEAR THEY WILL EVENTUALLY BREAK DOOR WILL FALL OFF. *TR

HAVE AN 04 TOYOTA SIENNA WITH POWER SLIDING DOORS. BOTH SLIDING DOOR CABLE SNAPPED OR JAMMED AND STOPPED WORKING. ONE CABLE WAS HANGING ON THE OUTSIDE. IT WAS FRAYED AND RUSTY. THE DOOR NOW IS NOT FUNCTIONAL BY MANUAL OR ELECTRIC. WHEN I TOOK THE VEHICLE TO THE TOYOTA DEALERSHIP, I WAS TOLD THAT THE REPAIR COST WAS $3,000.00 AND THAT THE MOTOR, MOUNTING BRACKETS AND OTHER VARIOUS PARTS WOULD NEED TO BE REPLACED. I HAVE A HARD TIME SWALLOWING THE THOUGHT OF THIS COST CONSIDERING THE CABLE IS RUSTED AND BROKE IN HALF WITH NO FAULT OF MY OWN. ALTHOUGH I AM OUT OF WARRANTY PERIOD, I WOULD THINK THIS PROBLEM SHOULD BE CONSIDERED A DEFECT AND A RECALL ISSUED BECAUSE THIS IS A VERY COMMON COMPLAINT WITH SIENNA?S. NEITHER THE DEALER NOR TOYOTA WAS ACCOMMODATING, TOYOTA NEVER EVER RESPONDED TO MY LETTER. I HAVE OWNED TOYOTAS FOR MANY YEARS, SO WHEN I PAID A PREMIUM PRICE FOR MY TOYOTA SIENNA, I THOUGHT I WAS GETTING A QUALITY MINI VAN. I WILL NEVER BUY ANOTHER TOYOTA! THIS PROBLEM SHOULD BE CLASSIFIED AS A RECALL. *TR

I AM THE ORIGINAL OWNER OF A 2004 TOYOTA SIENNA. THE DASHBOARD IS FULL OF HAIRLINE CRACKS. THEY STARTED ON THE SIDES NEAR THE A/C VENTS, TRAVELING TOWARDS THE CENTER OF THE DASH. FIRST APPEARED IN 2007. NOW THE DASHBOARD IS COVERED WITH CRACKS. TOOK IT TO THE DEALER AND COMPLAINED THAT IT WAS A DEFECT. SERVICE DEPT DIDN'T SEEM TO WANT TO DEAL WITH IT. FINALLY THEY TOOK PICTURES THEN SAID THEY WOULD HAVE TO SEND THE PICTURES OFF AND THEY WOULD GET BACK TO ME, WHICH THEY NEVER DID. CALLED THE SERVICE DEPT AND THEY DISMISSED ME SAYING IT WAS NOT COVERED. I DON'T THINK THEY EVER SENT THE PICTURES IN. THE CRACKS GET WORSE EVERY WEEK - LONGER, AND NEW ONES APPEAR. THIS IS CLEARLY A DEFECT. THERE WERE NO EVENTS THAT TOOK PLACE TO CAUSE THIS, NO CRASH, NO FIRE. THE AUTOMOBILE IS WELL MAINTAINED. THIS IS A MANUFACTURER'S DEFECT. *TR

PURCHASED THIS VEHICLE CERTIFIED USED IN 2007 WITH APPROX. 6 MONTHS LEFT ON THE 3 YEAR WARRANTY... THIS VEHICLE HAS FOG LIGHTS, DAYTIME RUNNING LIGHTS, AND XENON HEADLIGHTS/HIGH BEAMS. OF THESE EIGHT SETTINGS (LEFT AND RIGHT) ONLY ONE DOES NOT WORK -- THE RIGHT SIDE REGULAR BEAM HEADLIGHT. THE R/S HIGH BEAM WORKS FINE. R/S HEADLIGHT WAS INTERMITTENT FROM DATE OF PURCHASE. APPEARED TO BE A SIMPLE ELECTRICAL CONNECTION FAILURE AS HEADLIGHT WOULD COME BACK ON AFTER A SLIGHT STRIKE OF THE HEADLIGHT UNIT. ALSO NOTICED UNIT WOULD ACCUMULATE CONDENSATION AFTER RAINS. EVENTUALLY LIGHT STARTED GOING OUT MORE OFTEN AND STAYING ON FOR LESS TIME. BY DECEMBER THE LIGHT WOULD NOT COME ON AT ALL. SCHEDULED A SERVICE VISIT WITH OIL CHANGE BUT COULD NOT STAY LONG ENOUGH TO FULLY SOLVE THE PROBLEM. CAME BACK IN JANUARY FOR FULL EVALUATION. AFTER AN ENTIRE DAY OF TROUBLESHOOTING, THE TECHNICIAN BROUGHT ME BACK TO SHOW ME THAT THE HEADLIGHT BULB WORKED IN THE LEFT SIDE UNIT FINE. ALSO, THE RIGHT SIDE UNIT WORKED ON THE LEFT SIDE WHILE THE LEFT SIDE UNIT SHOWED MALFUNCTION ON THE RIGHT SIDE -- INDICATING BOTH THE UNITS WORKED FINE, BUT PROBLEM WAS ANOTHER SECTION (THE BALLAST?). TOYOTA SUGGESTED REPLACING THE WHOLE UNIT (DESPITE THE FACT THAT THEY PROVED TO ME THAT IT WORKED) AT A PRICE OF $1000 PLUS LABOR (SINCE IT WAS NO LONGER UNDER WARRANTY). I DECLINED THE OBVIOUSLY RIDICULOUS SUGGESTION AND TOOK IT HOME TO TRY MY OWN TROUBLESHOOTING. I DISCOVERED I COULD GET THE LIGHT TO COME ON BY PULLING TIGHT THE WIRE DEDICATED TO THE R/S XENON BULB STRAIGHT BACK FROM THE UNIT. THIS CAUSED THE LIGHT TO COME ON AND STAY ON OFTEN, THOUGH NOT ALWAYS, SIMILAR TO THE TIME IT WAS PURCHASED. HOWEVER, AFTER THE VERY FIRST HEAVY RAIN, THE HEADLIGHT UNIT HAD EXTENSIVE CONDENSATION INSIDE THE PLEXIGLASS AND THE LIGHT NEVER WORKED AGAIN. *TR

THE REAR POWER REAR LIFTGATE DID NOT STAY OPEN. IT SLAMMED CLOSE EVERY TIME IT WAS OPENED. THIS HAS TWICE CAUSED UNSUSPECTING VEHICLE OPERATORS TO BE STRUCK, ONCE IN THE HEAD AND ONCE IN THE BACK. *AK

ON 6/29/07 I OPENED THE BACK DOOR OF MY 2004 TOYOTA SIENNA TO PUT THE STROLLER IN. WHILE I PUT THE STROLLER IN, THE BACK DOOR SUDDENLY COME DOWN AND HIT MY HEAD. I TRY TO OPEN IT AGAIN BUT IT WON'T STAY OPEN AND KEEP FALLING BACK DOWN. I CALL TOYOTA DEALER AND ASK THEM ABOUT THE PROBLEM. THEY TOLD ME THAT I MAY NEED TO REPLACE THE BACK DOOR SHOCK. I ASKED THEM IF IT IS STILL UNDER WARRANTY AND THEY TOLD ME THAT IT IS NOT BECAUSE MY VEHICLE IS 38,000 MILES AND MORE THAN 3 YEARS. I BELIEVE THIS IS A SAFETY ISSUE AND IT CAN CAUSE SERIOUS INJURY. I BELIEVE TOYOTA SHOULD RECALL AND FIX THIS PROBLEM FREE OF CHARGE. THEY TOLD ME IT WILL COST ME $270 TO FIX THEM AND I MAKE APPOINTMENT WITH THEM FOR REPAIR NEXT WEEK. *TR

DRIVING ABOUT 15 MPH THROUGH PARKING LOT...AN ALARM SOUNDED FOLLOWED BY A "LOUD NOISE" FROM THE REAR. THIS WAS FOLLOWED BY THE CAR BRAKING AND PULLING TO THE RIGHT. ENGINE DID NOT STOP. THE CAR WOULD ONLY CRAWL WHEN ATTEMPTS WERE MADE TO DRIVE IT. ANY FASTER THAN 2-5 MPH CAUSED REPEAT OF THE EVENT. NO INFORMATION LIGHTS WERE ACTIVATED ON THE DASHBOARD. CAR WAS TAKEN BY FLATBED TO TOYOTA DEALERSHIP. ACCESS TO THE ONBOARD COMPUTER BY THE SERVICE PEOPLE AT DEALER DID NOT REVEAL ANY FAULTS. AN ATTEMPTED SOLUTION WAS TO REPROGRAM THE ABS MODULE. THIS DID NOT RESOLVE THE PROBLEM. AT THIS TIME, THE CAR REMAINS AT THE DEALERSHIP. REPORT FILED WITH TOYOTA REGIONAL BY BOTH DEALER AND MYSELF. *TR

BROKEN WELDS IN DOOR ON DOOR STOP ON 2004 TOYOTA SIENNA. THIS IS A KNOW DEFECT THAT NEEDS TO BE COVERED UNDER A RECALL. I KNOW OF 35 OTHER VANS WITH THE SAME PROBLEM. IT IS HIT OR MISS IF THEY WILL FIX THIS UNDER WARRANTY. THIS WILL BECOME A SAFETY ISSUE WHEN THE BRAKES AR EINVOLVED. TOYOTA CUSTOMER CARE HAS REFUSED TO TAKE COMPLAINTS ON THE PROBLEM. AK

TL*THE CONTACT OWNS A 2004 TOYOTA SIENNA. WHILE ATTEMPTING TO OPEN THE REAR LIFTGATE, THE CONTACT NOTICED THAT THE STRUTS HAD FAILED. AS A RESULT OF THE FAILURE, THE LIFTGATE BECAME VERY HEAVY AND DIFFICULT TO OPEN. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND WAS TOLD THAT HE HAD TO REPLACE BOTH DOOR STRUTS. THE CURRENT AND FAILURE MILEAGES WERE 72,000.

I OWN A 2004 TOYOTA SIENNA I BOUGHT NEW THAT HAS HAD TO HAVE THE BRAKE PADS REPLACED 3 TIMES IN 62,000 MILES. THE LAST 2 SETS ONLY LASTED 17,000, BUT THE FACTORY ONES LASTED 27,000. IT' WAS WORN OUT ROTORS, AND HAD TO REPLACE THOSE TWICE. IT WA SBECOMING VERY EXPENSIVE, AND SEEMED TO BE A PRODUCT DEFAULT. NO OTHER MINI VAN I DROVE HAD ANYTHING LIKE THIS. *AK

SIENNA 2004 AWD, PULLING TO THE RIGHT, UNRELIABLE RUN-FLAT TIRES- NEEDS REPLACEMENT ALMOST EVERY 12,000 MILES. I JUST HAD IT REPLACE LAST YEAR 2006 AS SPONSORED BY TOYOTA BECAUSE THEY SAID ORIGINAL TIRES WERE DEFECTIVE. NOW I AM HAVING PROBLEMS, GRINDING NOISE WHILE TURNING RIGHT, AND WAS INFORMED THAT ALL THE TIRES NEED TO BE REPLACED AFTER AT APPROXIMATELY 12,000 MILES , ODOMETER SHOWED APPROX 25,000 MILES, BECAUSE OF UNEVEN WEAR MOSTLY LEFT FRONT OUTSIDE PART OF THE TIRE. DEALER SAID BECAUSE I HAVE BEEN RUNNING ON LOW PRESSURE AND WAS PROBABLY MAKING A LOT OF RIGHT TURNS. IF I MAKE A RIGHT TURN I WOULD MAKE AN EQUAL AMOUNT OF LEFT TURNS. THE VAN WAS EQUIPPED WITH LOW PRESURE MONITORING SENSOR, ONE OF THE REASONS I PURCHASED IT WHICH DID NOT GO OFF. *AK TOYOTA REFUSES TO HELP WITH ALL THE TIRE PROBLEM AND DEALER IS PLAYING DUMB TO THE ISSUE.

THE LIFT GATE HAS FALLEN UNEXPECTEDLY ON SEVERAL OCCASSIONS. MY WIFE, MY MOTHER-IN-LAW AND MY CHILD HAVE ALL BEEN "HIT" ON SEPARATE OCCASSIONS BY THE GATE DURING THIS MALFUNCTION. THE DEALER HAS ADVISED THAT THE STRUTS NEED TO BE REPLACED. *TR

THE REAR LIFTGATE ON THE TOYOTA SIENNA DOES NOT HOLD AND WILL NOT STAY UP. THIS CREATES A SERIUS HAZARD, ESPECIALLY WHEN CHILDREN ARE NEARBY. *AK

RELATING TO CURRENT INVESTIGATION OF 2004 TOYOTA SIENNA REAR LIFTGATE STRUT FAILURE NHTSA RECALL CAMPAIGN NUMBER: EA06020). MY WIFE HAS A 2004 SIENNA XLE WITH THE POWER LIFTGATE AND THE STRUTS JUST FAILED, CAUSING THE LIFTGATE TO CLOSE AND REQUIRING HELP FROM A FRIEND STANDING NEARBY TO HELP HER HOLD IT UP TO REMOVE OUR CHILDREN'S STROLLER. I LOOKED AT IT THIS EVENING AND NOTICED GREASE AROUND ONE OF THE CYLINDERS WHERE THE SEAL HAD OBVIOUSLY FAILED. WHILE I WAS LOOKING AT THE STRUTS I TOOK MY HAND OFF OF THE HATCH FOR A SECOND MISTAKENLY THINKING THAT THE POWER ASSEMBLY WOULD HOLD IT UP AND IT IMMEDIATELY CAME DOWN AND HIT ME IN THE HEAD, CAUSING LUCKILY ONLY A HEADACHE. AFTER RESEARCHING THE PROBLEM AND FINDING THE ONGOING INVESTIGATION I WANTED TO ADD MY NAME TO THE LIST OF COMPLAINTANTS AND SUGGESTIONS THAT TOYOTA BE REQUIRED TO FIX THE DEFECT AND REPLACE THE STRUTS. NOTE: I ENTERED 2 IN THE NUMBER OF FAILURES BOX SINCE BOTH STRUTS FAILED AND I ENTERED 1 IN THE PERSONS INJURED BECAUSE IT DID HIT ME IN THE HEAD HARD ENOUGH TO GIVE ME A HEADACHE ,AND I AM A 200 LBS MAN. MY FEAR WAS THAT IF IT WOULD HAVE CLOSED ON ONE OF MY CHILDREN THAT IT COULD HAVE CAUSED SERIOUS INJURY. I WILL BE SHOPPING TOMORROW FOR REPLACEMENT STRUTS FROM AN AFTERMARKET DEALER BECAUSE IN MY RESEARCH I HAVE FOUND PEOPLE ON THEIR 2ND, 3RD, AND EVEN 4TH SETS OF STRUTS REPLACED UNDER WARRANTY. UNFORTUNATELY, MY SIENNA WAS CONVENIENTLY AT 39,000 MILES, 3,000 MILES OUT OF WARRANTY. *AK

I'VE SEEN OTHER COMPLAINTS ABOUT THE TRANSMISSION BEING HESITANT AND THE CAR SURGING AND SLOWING UNEXPECTEDLY. I'VE HAD THESE PROBLEMS, TOO. THE DEALERSHIP TOLD ME I NEEDED A FLASH TO THE COMPUTER THAT WOULD GIVE THE CAR A SHIFT ENHANCEMENT. THEY SAID IT WASN'T PART OF THE POWERTRAIN WARRANTY, BUT THEN AGREED TO DO IT FOR THE $45 I INITIALLY PAID THEM TO LOOK THE CAR OVER. IT SHIFTS MORE AGGRESSIVELY NOW, BUT IT STILL SEEMS TO SLOW AND SURGE UNEXPECTEDLY AND FAILS TO DOWNSHIFT FOR ACCELERATION AT TIMES. TODAY WAS MY FIRST DANGEROUS SITUATION IN WHICH I MADE A LEFT HAND TURN RIGHT BEFORE A CURVE IN THE ROAD. JUST AS I WAS BEGINNING MY TURN A CAR APPEARED AND I HAD TO STEP HARD ON THE ACCELERATOR. THE CAR DID NOT RESPOND AS QUICKLY AS IT SHOULD HAVE, BUT I DID MANAGE TO MAKE IT ACROSS.

POWER LIFTGATE STARTS CLOSING IMMEDIATELY AFTER OPENING. DOES NOT STAY OPEN. WHEN LIFTGATE "POWER" IS TURN OFF, THE GATE SLAMS DOWN HARD WHEN RELEASED; IF MY CHILD WAS STANDING BEHIND DOOR HE WOULD HAVE BEEN CRUSHED. *TR

TL*THE CONTACT OWNS A 2004 TOYOTA SIENNA. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH ON NORMAL ROAD CONDITIONS. THERE WAS PRESSURE APPLIED TO THE ACCELERATOR PEDAL, FOLLOWED BY AN UNEXPECTED ACCELERATION AND SURGE. THE DRIVER APPLIED EXCESSIVE FORCE TO THE BRAKE PEDAL AND THE VEHICLE SLOWED DOWN. THE VEHICLE WAS ABLE TO CONTINUE OPERATION WITH CAUTION. THE FAILURES OCCURRED INTERMITTENTLY. THE VEHICLE HAS NOT BEEN REPAIRED FOR THE MALFUNCTIONS. THE FAILURE MILEAGE WAS 47,000. THE VIN WAS UNAVAILABLE.

DRIVER SEAT BELT FAILS TO RETRACT AS THE STRAP GETS CAUGHT IN THE OPENING WHERE IT RETRACTS. IT DID THIS ON RARE OCCASION UNDER WARRANTY BUT NOW DOES IT CONSTANTLY. THERE FORE THE SEAT BELT IS VERY LOOSE AND DOES NOT RESTRAIN THE OCCUPANT. THE REAR BELTS WERE RECALLED FOR THIS TYPE OF DEFECT AND WERE WORKING FINE AT THE TIME OF THE RECALL. THIS PROBLEM HAS BEEN IGNORED BY THE DEALER UNDER WARRANTY AND NOW THEY SIMPLY WORK IT FREE WHEN WE BRING IT IN, DESPITE US TELLING THEM THAT IT RECURS DAILY. *TR

FAILURE OF GAS STRUTS ON LIFTGATE OF 2004 TOYOTA SIENNA RESULTED IN LIFTGATE NOT FULLY OPENING AND PROCEEDING TO CLOSE , MOTOR-DRIVEN), IMMEDIATELY UPON REACHING THE END OF TRAVEL OF THE POWERED OPENING. FIRST OCCURRENCE APPROXIMATELY 3 WEEKS AGO, NOW OCCURS CONTINUOUSLY. LIFTGATE MUST BE HELD OR PROPPED OPEN. NO INJURIES TO-DATE. HOWEVER, SEVERAL NEAR-MISSES , BUMPING HEAD/SHOULDER INTO GATE AS IT IS AUTOMATICALLY CLOSING, HAVE OCCURRED. SO FAR, NO REPAIR HAS BEEN MADE. AWAITING RESOLUTION BY DEALER. DEFECTIVE STRUTS WERE STILL INSTALLED. *AK

REAR DOOR STRUTS FAILURE.

DRIVER'S DOOR DETENT WELD FAILURE. I HAVE AN '04 TOYOTA SIENNA THAT ON THE DRIVER'S SIDE DOOR USES A DETENT STRAP TO HOLD THE DOOR OPEN AT CERTAIN POINTS. WHERE THE STRAP IS HELD AT, ON THE DOOR, THERE ARE TWO SPOT WELDS THAT ATTACH THE BRACKET TO THE DOOR. THE STRAP IS BOLTED TO THE BRACKET. THE PROBLEM SEEMS TO BE THAT TWO SPOT WELDS ARE NOT STRONG ENOUGH TO HOLD THIS BRACKET. AFTER I FOUND OUT THERE WAS A PROBLEM WITH THE DOOR, I CONTACTED MY LOCAL TOYOTA DEALER, AND THE SERVICE PERSON WAS WARE OF THIS CONDITION . THEY SAID IT WOULD HAVE TO BE SENT OUT TO A BODY SHOP TO BE REPAIRED. AFTER DISCUSSING IT WITH THIS PERSON AND THE SERVICE MANAGER THE DEALERSHIPS POSITION WAS THAT IT WAS OUT OF WARRANTY AND THAT THERE WERE NO RECALLS ON IT AT THIS TIME. I CHECKED A WEBSITE FOR TOYOTA SIENNA VANS AND FOUND THAT THIS PROBLEM WAS BIGGER THAN THE DEALER WANTED TO ADMIT, AND THOUSANDS OF THESE DOOR WELDS FAILED. ONE PERSON POSTED THAT A LOCAL BODY SHOP WAS REPLACING 7 DOORS A WEEK ON AVERAGE. I CALLED THE DEALER THAT I BOUGHT THE VAN FROM AND WITHOUT EVEN SEEING IT THEY KNEW OF THE PROBLEM AND SAID THAT THEY WILL TAKE CARE OF IT UNDER WARRANTY. THEY CLAIMED THAT TOYOTA WAS WORKING WITH THEM TO TAKE CARE OFF THE PROBLEM. SO, I WANT TO KNOW WHAT IT TAKES TO MAKE THIS OR ANYTHING A"RECALL. IS IT UP TO THE MANUFACTURER TO DECIDE OR JUST NUMBER OF COMPLAINTS. I URGE ANYONE WHO HAS A PROBLEM LIKE THIS, EVEN IF IT WAS TAKEN CARE OF UNDER WARRANTY, TO CALL TOYOTA CONSUMER AFFAIRS AND LET THEM KNOW ABOUT IT. THE PHONE NUMBER IS 800-331-4331. *AK

VERY COMMON PROBLEM: POWER SLIDING DOOR CABLE BROKE STRANDING THE OWNER WITH A HALF OPENED DOOR. THE INTERNET IS FILLED FULL OF PEOPLE WITH THE SAME PROBLEM.

TL*THE CONTACT OWNS A 2004 TOYOTA SIENNA. THE VEHICLE WAS TAKEN TO THE DEALER AT 26,000 MILES BECAUSE THE DRIVER SIDE DOOR WAS MAKING A LOUD POPPING, SQUEAKING, AND CLUNKING SOUND WHEN DRIVING OVER A SLIGHT INCLINE OR BUMP. AT THAT TIME, THE VEHICLE WAS STILL UNDER WARRANTY AND WAS REPAIRED BY THE DEALER. AT 41,898 MILES, THE VEHICLE BEGAN MAKING NOISE AGAIN, BUT ONLY MUCH LOUDER. WHEN THE VEHICLE WAS TAKEN TO THE DEALER, THEY INFORMED HER THAT THE WELL MECHANISM INSIDE THE DOOR FAILED. THE COST TO REPLACE THE DOOR WAS $3,000. THE VEHICLE IS CURRENTLY OUT OF WARRANTY. THE PURCHASE DATE AND SPEED WERE UNKNOWN. THE CURRENT MILEAGE WAS 41,898 AND FAILURE MILEAGE WAS 40,000.

2004 SIENNA XLE LIMITED -- ELECTRIC SLIDING/REAR DOOR ON DRIVER SIDE CLOSES BY ITSELF WHEN PARKED FACING DOWN INCLINE. DEALER DIAGNOSED FAULTY 'DOOR CHECK' BUT REFUSED TO REPAIR UNDER WARRANTY. THERE IS A TSB FOR FRONT DOOR 'DOOR CHECK' BUT NOT REAR SLIDING DOOR. THIS ISSUE IS A SAFETY CONCERN, AS PASSENGERS COULD BE PINNED IF DOOR WERE TO CLOSE UNEXPECTEDLY. *TR

TL*THE CONTACT OWNS A 2004 TOYOTA SIENNA. WHILE DRIVING 40 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL, BUT THE VEHICLE DID NOT STOP. THERE WERE 30-40 YARDS BETWEEN THE CONTACT'S VEHICLE AND THE PRECEDING VEHICLE. THE BRAKE PEDAL EXTENDED TO THE FLOORBOARD. THE BRAKES GRABBED MOMENTARILY, BUT THEN BECAME "MUSHY." THE CONTACT CRASHED INTO THE PRECEDING VEHICLE AND CAUSED INJURIES TO THE OCCUPANT IN THE OTHER VEHICLE. THE PASSENGER'S SEAT BELT DID NOT ENGAGE PROPERLY, CAUSING THE PASSENGER TO STRIKE THE DASHBOARD AND SUSTAIN MINOR INJURIES. THE VEHICLE WAS DESTROYED AND TOWED FROM THE SCENE. THE FAILURE AND CURRENT MILEAGES WERE LESS THAN 55,000.