I HAVE A TOYOTA SIENNA 99 AND MY CHECK LIGHT COMING OUT AND START TO SMOKE SO I FIND THE ENGINE DO THE OIL BE SLUDGE, I WANT TO KNOW IF IS SOME WAY OF TOYOTA FIX THIS PROBLEM FOR ME WHIT OUT CHARGE BECAUSE IS A MANUFACTURE PROBLEM. *TR
1999 Toyota Sienna
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1999 Toyota Sienna do not stand out strongly from the model-year median of 183.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sienna years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
67 reports with mileage · 148 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Tires. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
39 reportsI AM REPORTING ANOTHER TOYOTA STICKY ACCELERATOR PEDAL. OUR 1999 SIENNA MINIVAN HAS HAD 3 INCIDENTS OF STUCK ACCELERATOR, THE MOST RECENT WAS JAN. 21, 2010. I BELIEVE IT HAS BECOME "STUCK" BETWEEN 40 AND 45MPH. OTHER INCIDENTS WERE IN SUMMER (CANNOT REMEMBER DATE) AND OCTOBER 2009. THE 1ST INCIDENT WAS BRIEF AND CORRECTED QUI…
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I AM REPORTING ANOTHER TOYOTA STICKY ACCELERATOR PEDAL. OUR 1999 SIENNA MINIVAN HAS HAD 3 INCIDENTS OF STUCK ACCELERATOR, THE MOST RECENT WAS JAN. 21, 2010. I BELIEVE IT HAS BECOME "STUCK" BETWEEN 40 AND 45MPH. OTHER INCIDENTS WERE IN SUMMER (CANNOT REMEMBER DATE) AND OCTOBER 2009. THE 1ST INCIDENT WAS BRIEF AND CORRECTED QUICKLY BY PUSHING DOWN ON THE PEDAL TO "FREE IT", THE 2ND INCIDENT REQUIRED BRAKING AND PUTTING THE CAR IN NEUTRAL AND SHOVING THE PEDAL WITH MY FOOT TO THE LEFT AND RIGHT TO FREE IT UP. I WAS ABLE TO DRIVE THE CAR TO THE SHOULDER, TURNED THE CAR OFF AND THEN THE PEDAL SEEMED TO WORK OK, ALTHOUGH A BIT SLUGGISH RESPONSE. OUR MECHANIC FIXED THE THROTTLE BODY AND THE CAR HAS NOT HAD ANOTHER INCIDENT UNTIL LAST WEEK. THE MOST RECENT INCIDENT WAS MORE HARROWING IN THAT THERE WAS NOT MUCH ROOM TO MANEUVER THE CAR SINCE WE WERE HEADED FOR LOTS OF CARS STOPPED AT A TRAFFIC LIGHT. I TRIED TO SLOW THE CAR BY BRAKING HARD WITH THE LEFT FOOT AND SHOVING THE ACCELERATOR. PEDAL DOWN AND SIDE TO SIDE WHILE IN NEUTRAL BUT THIS DID NOT WORK QUICKLY LIKE THE OCTOBER INCIDENT. I WAS ABLE TO PULL OVER TO A SHOULDER BEFORE CRASHING BUT IT TOOK MUCH LONGER FOR THE CAR TO STOP THIS TIME, AND I ACTUALLY THREW THE CAR IN PARK TO STOP THE CAR! I TURNED OFF THE CAR AND AFTER A FEW MINUTES, WAS COMPOSED ENOUGH TO DRIVE IT. OUR DEALER WILL CHECK THE CAR JAN 29. THE FLOOR MAT DOES NOT APPEAR TO BE INVOLVED JAMMING INTO THE PEDAL, SO IT IS PROBABLY A MECHANICAL "CATCH" THAT IS GETTING HUNG UP WHEN THE PEDAL IS DOWN A CERTAIN DISTANCE. WE THOUGHT THE SAFETY GURUS WOULD WANT TO KNOW. LUCKILY NO CRASHES HAVE OCCURRED YET! *TW
1999 TOYOTA SIENNA ENGINE FROZE UP UNEXPECTEDLY. WAS ADVISED IT WAS POSSIBLY A SLUDGE PROBLEM. THIS VEHICLE WAS PURCHASED - USED - IN 2002 FROM A LOCAL DEALER WHO WILL NOT ACCEPT ANY RESPONSIBILITY FOR THE ESTIMATED $6850.00 ENGINE REPLACEMENT COST, EVEN THOUGH TOYOTA CHANGED THE ENGINE WARRANTY TO 8 YEARS/UNLIMITED MILEAGE.*JB
MY WIFE WAS DRIVING ON THE FLORIDA TURNPIKE WITH OUR SONS (AGES 3 AND 1) IN THE VEHICLE. THE ENGINE LIGHT CAME ON AND THE ENGINE DIED. SHE COASTED OVER TO THE SIDE OF THE ROAD. SHE STAYED IN VEHICLE AND KEPT THE BOYS IN THEIR CAR SEATS AS SHE WAS ALONG A MAJOR HIGHWAY. A ROAD SIDE ASSISTANCE VEHICLE PULLED UP BEHIND HER WITH…
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MY WIFE WAS DRIVING ON THE FLORIDA TURNPIKE WITH OUR SONS (AGES 3 AND 1) IN THE VEHICLE. THE ENGINE LIGHT CAME ON AND THE ENGINE DIED. SHE COASTED OVER TO THE SIDE OF THE ROAD. SHE STAYED IN VEHICLE AND KEPT THE BOYS IN THEIR CAR SEATS AS SHE WAS ALONG A MAJOR HIGHWAY. A ROAD SIDE ASSISTANCE VEHICLE PULLED UP BEHIND HER WITHIN A MINUTE OR TWO. HE ASKED MY WIFE WHAT THE PROBLEM WAS. SHE TOLD HIM AND HE ASKED HER TO POP THE HOOD. SHE DID. HE OPENED IT AND FLAMES CAME OUT OF THE ENGINE COMPARTMENT. NEITHER HE NOR MY WIFE KNEW OR SUSPECTED A FIRE. NO FLAMES. NO SMOKE. NO SMELL. NO HEAT. HE YELLED TO MY WIFE TO GET HERSELF AND THE KIDS OUT OF THE CAR. SHE DID AND THEY WERE ALL UNHARMED. HE PUT THE FIRE OUT WITH A FIRE EXTINGUISHER. OBVIOUSLY, MY WIFE AND CHILDREN PROBABLY WOULD HAVE BEEN KILLED HAD THAT ROAD SIDE ASSISTANT NOT BEEN THERE. FL HIGHWAY PATROL ARRIVED. THE FHP OFFICER FILED INCIDENT REPORT # FHPK05OFF042549. I HAD THE VEHICLE TOWED TO WHERE I BOUGHT IT, TOYOTA OF ORLANDO (3800 W. COLONIAL DRIVE ORLANDO, FL 32808 407-298-4500) I VIDEO TAPED THE BURNED ENGINE AND THE VEHICLE FROM HEAD TO TOE AND WILL BE HAPPY TO SUBMIT A COPY TO YOU. I WAS CALLED BY A MR. MANNY COLON OF TOYOTA OF ORLANDO. HE EXPLAINED TO ME THAT SLUDGE BUILD UP WAS FOUND AND SAID THAT WAS PROBABLY THE CAUSE OF THE FIRE. I HAVE RECORDS (WITH A DIFFERENT SHOP-GOODYEAR) SHOWING THAT THE OIL WAS CHANGED REGULARLY AND NOT TERRIBLY LONG AGO. THERE SEEMS TO BE AN EXTREMELY WELL DOCUMENTED (AND ACKNOWLEDGED BY TOYOTA) SLUDGE PROBLEM WITH TOYOTA'S - INCLUDING THE 99 SIENNA. I HAVE FOUND MANY ARTICLES ON THE INTERNET AND I AM COLLECTING THEM. I WAS NEVER INFORMED OF THIS ISSUE BY ANYONE. IF THIS ISSUE CAN CAUSE AN ENGINE FIRE, WHY ARE THESE VEHICLES BEING ALLOWED ON THE ROAD WITH FAMILIES AND CHILDREN RIDING IN THEM? MY ENTIRE FAMILY ALMOST DIED YESTERDAY. PLEASE INVESTIGATE THIS. I DON'T WANT OTHERS TO DIE IF IT CAN BE AVOIDED. *NM
THE CONSUMER STATES VEHICLE IS BURNING EXCESSIVE OIL. *AK THE CONSUMER STATED THAT OIL WAS IN THE PAN. THE CONSUMER STATED THAT OTHER OWNERS HAVE THE SAME PROBLEM. *TC
VEHICLE STALLED WHILE DRIVING. DRIVER WAS ABLE TO PULL OVER, AND TRIED TO RESTART VEHICLE BUT WAS UNABLE TO DO SO. AFTERWARDS, DRIVER HAD THE VEHICLE TOWED TO THE DEALER, BUT MECHANIC COULD NOT DUPLICATE THE PROBLEM.*AK
OIL SLUDGE (GELLING) DEVELOPS IN ENGINE RESULTING IN THE NECESSITY TO REPLACE THE ENGINE AT GREAT COST. TOYOTA STATES THAT THEY WILL PAY FOR THE REPAIRS IF ALL REQUIRED MAINTENANCE HAS BEEN PERFORMED, BUT THEY HAVE REFUSED TO DO SO AND HAVE REFUSED TO LET US SPEAK WITH ANYONE WITH THE AUTHORITY TO HONOR THEIR WARRANTY. *JB
MY VAN HAD FIRST ENGINE OIL SLUDGE PROBLEM AT 32782 MILES IN MARCH 2003. FINALLY TOYOTA PAID THE REPAIR COST AFTER MANY PHONE CALLS. ONE YEAR LATER, ON JULY 5,2004, I FOUND THAT THERE IS NO ENGINE OIL LEFT AGAIN DURING THE MIDDLE OF OUR FAMILY VACATION TRIP (AT 46000 MILES). AND BLUE SMOKE COMES OUT FROM EXHAUST PIPE AGAIN. TOY…
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MY VAN HAD FIRST ENGINE OIL SLUDGE PROBLEM AT 32782 MILES IN MARCH 2003. FINALLY TOYOTA PAID THE REPAIR COST AFTER MANY PHONE CALLS. ONE YEAR LATER, ON JULY 5,2004, I FOUND THAT THERE IS NO ENGINE OIL LEFT AGAIN DURING THE MIDDLE OF OUR FAMILY VACATION TRIP (AT 46000 MILES). AND BLUE SMOKE COMES OUT FROM EXHAUST PIPE AGAIN. TOYOTA COULDN'T FIX THE PROBLEM BY CLEARING CHANGING SOME PARTS. I REQUEST TOYOTA REPLACE THE DEFECT ENGINE.*AK
1999 TOYOTA SIENNA IS SITTING IN DRIVEWAY FOR PAST 2 MONTHS WITH SEIZED ENGINE DUE TO THIS "OIL SLUDGING" PROBLEM. COST TO REPAIR OVER 6000 FROM DEALER. CERTIFIED MAIL SENT 2/18/04 TO TOYOTA MOTOR SALES IN TORRANCE, CA., WITH COPY OF MAINTENANCE RECORDS SHOWING OIL FILTER & OIL CHANGES.*AK
OIL SLUDGE.STARTED BLOWING AT STOP LIGHTS AND ALL STARTUPS.CALLING TOYOTA THIS WEEK. THIS SIENNA IS IN MINT CONDITION.WE BOUGHT IT FOR SAFETY AND DEPENDABILITY FOR OUR 7 WEEK OLD SON.NOW WE'LL SEE IF TOYOTA STANDS BEHIND IT.THIS IS OUR 1ST TOYOTA,BUT THERE ARE 7 LEXUS/TOYOTAS' WITHIN OUR FAMILIES.THIS ENGINE IS DAMAGED AND FROM …
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OIL SLUDGE.STARTED BLOWING AT STOP LIGHTS AND ALL STARTUPS.CALLING TOYOTA THIS WEEK. THIS SIENNA IS IN MINT CONDITION.WE BOUGHT IT FOR SAFETY AND DEPENDABILITY FOR OUR 7 WEEK OLD SON.NOW WE'LL SEE IF TOYOTA STANDS BEHIND IT.THIS IS OUR 1ST TOYOTA,BUT THERE ARE 7 LEXUS/TOYOTAS' WITHIN OUR FAMILIES.THIS ENGINE IS DAMAGED AND FROM WHAT WE HAVE READ,EXPECT A COMPLETE NEW ONE.
Official recalls
210V160000 · Structure
Apr 20, 2010
TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON DISTRICT OF COLUMBIA, VIRGINIA, WEST VIRGINIA, AND WISCONSIN. THE SUBJECT VEHICLES ARE EQUIPPED WITH THE SPARE TIRE STOWED UNDER THE VEHICLE. IF THE VEHICLE IS OPERATED IN THE COLD CLIMATE REGIONS OF THE UNITED STATES WHERE ROAD SALT IS FREQUENTLY USED, WATER SPLASHED BACKWARDS WITH HIGH CONCENTRATIONS OF ROAD SALT CAN REACH THE SPARE TIRE CARRIER AND CORRODE THE SPARE TIRE CARRIER ASSEMBLY CABLE.
Consequence & remedy
Consequence: THE CABLE MAY BREAK DUE TO EXCESSIVE CORROSION AND THE SPARE TIRE MAY SEPARATE FROM THE VEHICLE, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: TOYOTA WILL NOTIFY OWNERS WITH AN INTERIM LETTER INITIALLY INSTRUCTING THEM TO BRING THEIR VEHICLE TO AUTHORIZED DEALERS TO INSPECT FOR CORROSION. A SECOND NOTICE WILL BE SENT WHEN THE PERMANENT REMEDY IS AVAILABLE. FOR MORE INFORMATION, PLEASE SEE TOYOTA'S AMENDED RECALL REPORT OF JULY 19, 2010. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OCTOBER 12, 2010. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.
98V278000 · Electrical SYSTEM:IGNITION:ANTI-THEFT:CONTROL Module
Oct 19, 1998
VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES, MINI VANS AND PASSENGER VEHICLES EQUIPPED WITH A THEFT DETERRENT SYSTEMS (TDS) SUPPLIED BY AUDIOVOX CORPORATION AND DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN 'OPEN CIRCUIT' CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.
Consequence & remedy
Consequence: THIS CONDITION CAN CAUSE INTERMITTENT PERFORMANCE OF THE VEHICLE'S ELECTRICAL COMPONENTS SUCH AS THE DASH WARNING LIGHTS AND/OR HVAC FAN SPEED CONTROLS. ALSO, THE VEHICLE MAY NOT RUN SMOOTHLY AND COULD STALL.
Remedy: DEALERS WILL INSPECT THE DATE CODE LABEL ON THE SECURITY SYSTEM HARNESS AND ANY DISPLAYING THE MANUFACTURING/FINAL DATE CODE WILL BE REPLACED WITH NEWLY PRODUCED HARNESSES. THE DATE CODES ARE: RAV4 - 6/24/98, 6/25/98, 6/26/98; SIENNA - 6/25/98, 6/26/98; AND AVALON - 6/30/98, 7/1/98, 8/31/98, 9/1/98, 9/2/98, AND 9/3/98.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2DP02004 · Engine Seizure
Opened Apr 30, 2002 · Closed Jun 20, 2002
Status: closed (inferred from source dates) · Engine And Engine Cooling
No summary supplied.
PE99070 · Steering Wheel To Return To Center
Opened Nov 17, 1999 · Closed Apr 12, 2000
Status: closed (inferred from source dates) · Steering
There is no summary currently available
Illustration