Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 207 complaints with NHTSA about the 2002 Toyota Sienna, and it carries 1 recall. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Structure | 24 | 12% |
| Service brakes | 21 | 10% |
| Latches/locks/linkages | 20 | 10% |
| Engine and engine cooling | 16 | 8% |
| Tires | 15 | 7% |
| Power train | 12 | 6% |
| Electrical system | 9 | 4% |
| Air bags | 7 | 3% |
| Structure | 7 | 3% |
| Seat belts | 7 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
Dear Sir, On April 2026, I need to do the semiannual smog check. Right now, I face DTC P0420 error code and I can't pass the smog check inspection. Note that I don't have the engine light on indicating the a/m error code
NHTSA complaint: Electrical system
CHECKING ENGINE LIGHT ON AND OFF SLIDE DOOR NOT WORKING PROPERLY
NHTSA complaint: Electrical system
THE LOWER REAR MOUNT FOR THE PASSENGER-SIDE REAR SHOCK ABSORBER WAS FOUND WHEN THE VEHICLE WAS STATIONARY TO HAVE BECOME PARTIALLY FRACTURED OVER TIME. IT IS MADE OF THIN HOLLOW METAL WITH INTERNAL THREADS. THERE IS NO R
NHTSA complaint: Suspension
BRAKES MAKE A NOISE WHEN THE CAR IS ABOUT TO STOP. THERE IS A SQUEAL AND THUMP THAT CAN BE HEARD. HAVE TAKEN THIS IN SEVERAL TIMES TO BE FIXED. THEY SAY THE BRAKES ARE SAFE. I AM 74 YEARS OLD AND HAVE HAD MANY CARS O
NHTSA complaint: Service brakes
TL* THE CONTACT OWNS A 2002 TOYOTA SIENNA. WHILE THE VEHICLE WAS PARKED WITH THE ENGINE TURNED OFF AND THE EMERGENCY BRAKE ENGAGED, THE VEHICLE SUDDENLY ROLLED BACKWARDS DOWN A SMALL INCLINE AND CRASHED INTO A FENCE POST
NHTSA complaint: Power train
INCIDENT #1 (6/3/2017) - TOOK FOOT OFF ACCELERATOR PEDAL WHEN TURNING ON CITY STREET. CAR PROCEEDED TO ACCELERATE ON ITS OWN WENT UP TO 35 MPH FOR SEVERAL BLOCKS INCIDENT #2 (6/4/2017) - WHILE PARKING CAR IN DRIVEWA
NHTSA complaint: Vehicle speed control
TL* THE CONTACT OWNS A 2002 TOYOTA SIENNA. THE CONTACT STATED THE VEHICLE LEAKED WATER FROM THE AIR CONDITIONING SYSTEM AND THE SRS AIR BAG WARNING LIGHT ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFA
NHTSA complaint: Air bags
THE CABLE FOR THE PASSENGER POWER DOOR SNAPPED AND DOOR WOULD NOT FULLY SHUT. I WAS STOPPED, GETTING READY TO TURN LEFT, WHEN IT SNAPPED.
NHTSA complaint: Structure
NHTSA lists 1 recall campaign for the 2002 Toyota Sienna. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
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 HAMP
Risk: THE CABLE MAY BREAK DUE TO EXCESSIVE CORROSION AND THE SPARE TIRE MAY SEPARATE FROM THE VEHICLE, POSSIBLY RESULTING IN A VEHICLE CRASH.
Fix: 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 REME
| Reliability raw | 69 | good |
|---|---|---|
| Longevity est. | 78 | good |
| Maintenance | 76 | good |
| Depreciation | 92 | excellent |
| Performance | 54 | average |
| Efficiency | 36 | below average |
Percentile ranks against other minivans & vans in the catalog.
What stands behind each score for this car:
Owners have filed 207 complaints with NHTSA for this model-year, and structure is the most reported area with 24 of them (12%). There is 1 recall on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 69/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 78/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2002 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 71/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.