2022 Toyota Sienna Hybrid

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

Concern 1: My 2022 Toyota Sienna intermittently experiences an unexpected forward surge while braking. When I press the brake pedal to slow or stop the vehicle, I sometimes feel a sudden forward pushing or acceleration sensation before the vehicle slows down. The behavior is unexpected and concerning, particularly when approaching another vehicle, intersection, or obstacle. I am concerned that this condition could increase the risk of a collision Concern 2 – Clicking/clunking from driver's side There is also a repetitive clicking or clunking noise from the driver's side of the vehicle during stop-and-go operation. The noise can be heard when the vehicle stops and then begins moving again. I reported this condition to Nalley Toyota in Roswell and requested that it be inspected as a potential warranty issue. I was advised that I would need to pay a diagnostic fee.

NHTSA ID

11772770

Incident

Oct 17, 2026

I am reporting an ongoing braking-safety problem with my 2022 Toyota Sienna XSE Hybrid. During low-speed braking, at the transition from regenerative to conventional hydraulic/friction braking, the expected deceleration can change abruptly. The vehicle can briefly surge forward even though I continue braking. This reduces the gap to the vehicle ahead, requiring significantly harder and faster brake-pedal input to avoid a collision. This affects the predictability of stopping distance. I purchased the vehicle on June 17, 2024 as a Toyota Certified Used Vehicle. On July 8, 2024, during a service visit — 21 days and 577 miles after purchase — I personally reported to Toyota a noticeable change/jerk in braking force at low speed during the transition between regenerative and conventional braking, and Toyota officially documented my complaint. T-SB-0047-24 already existed and provides for reprogramming the brake actuator control module. The update was not performed then and still has not been performed. In 2026, I again returned to Toyota with the same complaint. Seeger Toyota did not perform a road test because the technician considered the mechanical brakes unsafe. The dealer recommended rotor replacement because of corrosion/pitting, but the final RO contains no separate rotor-thickness measurements, runout measurements, quantitative pitting/corrosion data, or specific Toyota limits/criteria. After my written escalation, the Service Manager agreed to perform T-SB-0047-24 at no charge, but the update remains unperformed and the problem recurs regularly. I ask NHTSA/ODI to evaluate this case as a potential safety defect related to the regenerative-to-hydraulic brake transition. Because of the 2,000-character limit, the full description and chronology are attached as a separate PDF. Key evidence is being uploaded with this complaint; additional service records, correspondence, and photographs/measurements are preserved and can be provided upon request.

NHTSA ID

11769772

Incident

Oct 3, 2026

I own a 2022 Toyota Sienna with approximately 67,680 miles. The vehicle began displaying warnings for **Blind Spot Monitor Malfunction, Rear Cross Traffic Alert Malfunction, and Parking Support Brake Unavailable**. A Toyota dealer diagnosed the problem and found significant corrosion at **both rear blind spot monitor connections**. The wiring harness connector pins had corroded/broken off inside the blind spot monitor sensors. The dealer recommends replacing both blind spot monitors and the rear bumper wiring harness and recalibrating the system. The estimated repair cost is **$3,945.84**. I am concerned that both sides of this safety-related system experienced severe corrosion on a vehicle that is less than five years old. These components are not scheduled maintenance or wear items. I have also found reports of other 2021–2022 Toyota Sienna owners experiencing blind spot monitoring failures involving corrosion of the rear sensor/connectors, including another 2022 Sienna at approximately 65,000 miles. Toyota's Brand Engagement Center has documented my complaint but declined to review the repair for goodwill assistance because the vehicle is outside the basic warranty and has not been serviced exclusively at Toyota dealerships. I am filing this complaint because the corrosion simultaneously disables multiple driver-assistance/safety functions and appears unusually premature. I believe NHTSA should investigate whether corrosion or inadequate protection of the rear blind spot monitor connections is affecting other 2021–2024 Toyota Siennas.

NHTSA ID

11759229

Incident

May 3, 2026

When apply the brake, the car will have sudden forward pushing.

NHTSA ID

11757932

Incident

Aug 18, 2026

I am reporting a potential safety issue involving the passenger-side power sliding door on a 2022 Toyota Sienna. On XXX, my [XXX] child was outside the vehicle in a wagon while the passenger-side sliding door was closing. He reached toward the vehicle, and his fingers became trapped near the front edge of the sliding door, closest to the front passenger door. The power door did not stop or reverse after contacting his fingers. It continued closing, clicked shut, and fully latched with his fingers caught in the door. We immediately opened the door and removed his hand. Thankfully, he was not seriously injured, but the incident had the potential to cause a severe hand or finger injury. I am concerned that the obstruction-detection or pinch-protection system did not detect an infant’s fingers in this location. I am submitting this complaint so the incident is documented and can be compared with any similar reports involving Toyota Sienna power sliding doors. Vehicle: 2022 Toyota Sienna VIN: [XXX] Incident date: XXX Incident location: [XXX] Affected component: Passenger-side power sliding door INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11754261

Incident

Aug 1, 2026

I am reporting a potential safety issue involving the passenger-side power sliding door on a 2022 Toyota Sienna. On XXX my [XXX] child was outside the vehicle in a wagon while the passenger-side sliding door was closing. He reached toward the vehicle, and his fingers became trapped in the sliding door, closest to the front passenger door. The power door did not stop or reverse after contacting his fingers. It continued closing, clicked shut, and fully latched with his fingers caught in the door. We immediately opened the door and removed his hand. Thankfully, he was not seriously injured, but the incident had the potential to cause a severe hand or finger injury. I am concerned that the obstruction-detection or pinch-protection system did not detect an infant’s fingers in this location. I am submitting this complaint so the incident is documented and can be compared with any similar reports involving Toyota Sienna power sliding doors. Vehicle: 2022 Toyota Sienna VIN: [XXX] Incident date:XXX Incident location: [XXX] Affected component: Passenger-side power sliding door INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11754257

Incident

Aug 1, 2026

Stitching on the driver seat is tearing. Under normal wear. The vehicle is just out of the 3 year/36,000 warranty period. If the seat continues to degrade it will not be safe for future use as it worsens.

NHTSA ID

11747546

Incident

Jun 29, 2026

The car will occassionally lurch forward while braking. It's somewhat random but most often happens when going down a slight hill. My best guess is that there is an issue with the transition from regenerative braking to mechanical braking. It feels like the vehicle momentarily looses contact with the brakes and that the brake pedal has to be pushed down another inch or two to reengage. My concern is that if this happens at the wrong time that I will get in an accident. This has happened ever since I bought it. It's not very often, maybe once a week. Speeds have been variable from under 25 to highway speeds.

NHTSA ID

11746694

Incident

Jun 1, 2026

Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.

OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.

This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.

Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.

OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.

OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.