What Owners Report NHTSA ODI · 2,175,102 complaints · MY1998–2026

1999 Toyota Sienna

Typical pattern

11.2% of complaints about the 1999 Toyota Sienna came in the first year, which is unremarkable for a 1999 vehicle — around the middle of the 201 model-years on record. The median complaint arrives at 4.3 yr in service. The most-reported system is engine cooling (39 complaints), typically at 3.3 yr or about 79,000 miles.

Complaints
206
Median age at failure
4.3 yr
Median mileage
92,000 n=80
Crash / fire / tow
10.2% of reports
Safety recalls
3

When each system is reported — middle 50% of complaints

System
0y2y4y6y8y10y12y14y
Engine cooling
39 reports · 79,000 mi
3.3 yr
2.6%
Structure
29 reports · 100,000 mi
6.0 yr
3.4%
Tires
22 reports · 33,200 mi
2.8 yr
9.1%
Steering
16 reports · 65,000 mi
1.1 yr
0%
Latches / locks
16 reports · 91,000 mi
7.2 yr
12.5%

Safety recalls — NHTSA campaigns

10V160000 2010-04-20
Structure

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 STAT

THE CABLE MAY BREAK DUE TO EXCESSIVE CORROSION AND THE SPARE TIRE MAY SEPARATE FROM THE VEHICLE, POSSIBLY RESULTING IN A VEHICLE CRASH.

98V278000 1998-10-19
Electrical system:ignition:anti-theft:control module

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 T

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.

98E035000 1998-10-19
Electrical system:ignition:anti-theft:control module

EQUIPMENT DESCRIPTION: AFTERMARKET THEFT DETERRENT SYSTEMS USED ON 1998-1998 TOYOTA RAV4, AVALON, AND SIENNA MODEL VEHICLES 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.

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.

In owners’ own words

Structure mileage not reported 8 mo in service
POWER SLIDING DOOR NOT LATCHING PROPERLY; WARNING LITE ON; ECU SHORT CIRCUITED; CANNOT VERIFY IF RIGHT SLIDING DOOR IS CLOSED SHUT; EXACT PROBLEM ON SAME VEHICLE TAKEN FROM CARSON TOYOTA IN FEBRUARY; OTHER VEHICLE'S VIN NR IS [XXX]. *AK INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Structure mileage not reported 10 mo in service
AUTOMATIC SLIDING DOOR CAME OFF OF THE TRACKS. DEALER HAS REPAIRED THE VEHICLE, AND PROBLEM HAS REOCCURRED.*AK
Structure mileage not reported 2.2 yr in service
WHILE DRIVING STEERING SYSTEM MALFUNCTION ED,CAUSING LOSS OF STEERING ABILITY WHICH ALMOST RESULTED IN A CRASH. DEALER REPLACED RACK GUIDE SUB ASSEMBLY PER TECHNICAL SERVICE BULLETIN. ALSO, BOTH SLIDING DOOR POWER LOCKS MALFUNCTIONED WAS UNABLE TO OPEN FROM INSIDE OR OUTSIDE, WHICH IN CASE OF EMERGENCY, THOSE SLIDING DOORS COULD NOT BE USED. DEALER HAD TO REPLACE LOCKS. BUT, SODA SPILLED INTO RUBBER OF DOOR AND CAUSED THEM TO STICK. THEY SHOULD USE BOTTLES. PLEASE PROVIDE FURTHER INFORMATION. *AK
Steering mileage not reported 3 mo in service
WHEN MAKING A LEFT TURN VEHICLE CONTINUES TO TURN LEFT UNLESS MANUALLY TURNING STEERING BACK TO RIGHT, AND CLICKING IS HEARD. *ADJ

Other Sienna model years

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