1999 Toyota Sienna problems & reliability
215 owner complaints filed with NHTSA for the 1999 Toyota Sienna, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
14 complaints report injuries (25 injured, 1 deaths reported).
Federal crash records (FARS 2020–2023): 1999 Toyota Sienna vehicles were involved in 17 fatal crashes with 7 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine and Engine Cooling → | 39 | 18% |
| Structure → | 36 | 17% |
| Tires → | 28 | 13% |
| Steering → | 21 | 10% |
| Latches/locks/linkages → | 19 | 9% |
| Service Brakes, Hydraulic → | 14 | 7% |
| Suspension → | 14 | 7% |
| Unknown OR Other | 13 | 6% |
| Power Train → | 11 | 5% |
| Electrical System → | 10 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 90,000 miles (middle 50% between 61,000 and 118,580 miles), based on 65 complaints that included mileage.
Complaints by incident year
What owners report
“The van has sudden acceleration problem at times it is hard to slow it down even stop it. The problem mainly occurs from stop and go especially if it has been parked for few hours.”
Vehicle Speed Control · filed Dec 16, 2020
“The cable to my drivers side sliding door snapped, thus the door can no longer be opened automatically. This defect is under a warranty enhancement for model years 2004-2007, but I have a 2009 model year.”
Structure · filed May 3, 2016
“While driving, my spare tire fell from underneath my car due to the fact that the cables snapped. The car behind me ran over it and I am now being charged for the damages to that person's car. *tr”
Tires · filed Dec 10, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- ENGINE SEIZURE
Defect Petition DP02004 · opened Apr 30, 2002 · closed Jun 20, 2002
- STEERING WHEEL TO RETURN TO CENTER
Preliminary Evaluation PE99070 · opened Nov 17, 1999 · closed Apr 12, 2000
Technical service bulletins
101 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1999 Toyota Sienna. The 10 most recent:
OBSOLETE NOTICE January 22, 2024: This bulletin is now obsolete. Please see T-SB-0057-18.
T-SB-0043-14 · Service Bulletin/Repair Instructions · issued Jan 22, 2024
TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be…
TSB003220 · Service Bulletin/Repair Instructions · issued Aug 17, 2023
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the…
T-SB-0057-18 · Service Bulletin/Repair Instructions · issued May 30, 2023
TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions
TTT063620 · Service Bulletin/Repair Instructions · issued Mar 17, 2022
POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Toyota. This information must be kept near the point of vehicle sale and be…
Toyota PRO19-02 · Service Bulletin/Repair Instructions · issued Jan 12, 2022
Toyota Safety Recall and Service Campaign - Technician Certification Requirements
Toyota Safety Re · Service Bulletin/Repair Instructions · issued Mar 17, 2021
TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-TT-0636-20 Rev · Service Bulletin/Repair Instructions · issued Mar 12, 2021
TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2021 model year vehicles may be…
T-SB-0032-20 Rev · Service Bulletin/Repair Instructions · issued Feb 3, 2021
TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-TT-0636-20 · Service Bulletin/Repair Instructions · issued Dec 14, 2020
TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-TT-0636-20 · Service Bulletin/Repair Instructions · issued Dec 14, 2020
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 1999 Toyota Sienna has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1999 Toyota Sienna?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 90,000 miles — budget accordingly if the car is approaching that mileage.