2021 Toyota SIENNA HYBRID: complaints, problems and recalls

THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS.

Owner-reported narrative. Look up ODI 11377621 at NHTSA ↗

2021 SIENNA XLE WITH PLUS PACKAGE AND REAR ENTERTAINMENT PACKAGE. WHEN REAR SCREEN DOWN (IN USE) THE ENTERTAINMENT SCREEN BLOCK THE WHOLE REAR MIRROR. WE UNABLE TO SEE WHAT HAPPENS IN BEHIND. TOYOTA SHOULD INSTALL DIGITAL REAR VIEW MIRROR IF CAR COME WITH RES. THIS IS A SAFETY CONCERN WE EITHER WATCH NOT DRIVE OR DRIVE NOT WATCH WE CANNOT DO BOTH BECAUSE SAFETY ISSUE.

Owner-reported narrative. 5 miles reported. Look up ODI 11404897 at NHTSA ↗

TL* THE CONTACT OWNS A 2021 TOYOTA SIENNA HYBRID. THE CONTACT STATED WHILE ATTEMPTING TO MAKE A RIGHT TURN WITH THE ACCELERATOR PEDAL DEPRESSED, THE VEHICLE FAILED TO RESPOND. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED THAT HE HAD EXPERIENCED THE FAILURE ON SEVERAL OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 100. THE VIN WAS NOT AVAILABLE.

Owner-reported narrative. 100 miles reported. Look up ODI 11404950 at NHTSA ↗

I FOUND A BIG DESIGN FLAW IN OUR NEW MINIVAN. WHEN MY KIDS ARE USING THE REAR ENTERTAINMENT SYSTEM, THE SCREEN BLOCK THE DRIVER REAR MIRROR LINE OF SIGHT. I DON'T FEEL SAFE DRIVING AROUND IF I CAN'T HAVE BACK AND FORTH VISIBILITY FROM THE DRIVER SEAT. I DON'T UNDERSTAND WHY TOYOTA DIDN'T MAKE THE DIGITAL REARVIEW MIRROR STANDARD IN ALL THE TRIMS EQUIPPED WITH REAR ENTERTAINMENT SYSTEM. THE LACK OF REAR VISIBILITY FROM THE DRIVER CAN PUT AT RISK THE LIFE OF ALL THE PASSENGERS. I TRIED CONTACT THE DEALER AND TOYOTA DIRECTLY BUT I'M NOT G…

Owner-reported narrative. 940 miles reported. Look up ODI 11414013 at NHTSA ↗

THE 2021 SIENNA XLE PLUS AND ENTERTAINMENT PACKAGE DID NOT INCLUDE A DIGITAL REAR VIEW MIRROR IN THIS TRIM LEVEL. THE NEW SIENNA IS A BRAND NEW MODEL WITH A MASSIVE DESIGN FLAW, A HUGE TV WITH ZERO VISIBILITY OUT THE REAR OF CAR. IT'S UNSAFE. MANY PEOPLE WILL NOT TEST DRIVE WITH THE TV DOWN TO SEE THE SAFETY ISSUE. WE DIDN'T REALIZE IT TILL KIDS PUT THE TV DOWN DAY LATER. SEEMS TO HAVE SADLY MADE IT THROUGH QUALITY CONTROL PROCESS AT TOYOTA. YOU CAN NOT SEE CARS RIGHT UP ON YOU AT STOP SIGNS, CARS APPROACHING ETC IT NEEDS A SAFETY RECALL AND A…

Owner-reported narrative. Look up ODI 11414500 at NHTSA ↗

HEADLINER CUT TOO LARGE, DOESN'T HOLD REAR PASSENGER CLIMATE CONTROLS, CLIMATE CONTROLS FALL OUT AND HIT REAR PASSENGERS. THIS HAPPENS AT ANY SPEED.

Owner-reported narrative. 2,000 miles reported. Look up ODI 11416133 at NHTSA ↗

The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that the passenger's side rearview mirror detached and the rear liftgate door inadvertently opened while parked in the garage. The vehicle was taken to the dealer but was not yet diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 9,000. The VIN was unavailable.

Owner-reported narrative. 9,000 miles reported. Look up ODI 11460491 at NHTSA ↗

The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that while depressing the brake pedal, there was a three-second delay before the brakes would respond. Additionally, the brake pedal was difficult to depress, creating an extended stopping distance. The vehicle was taken to the local dealer who adjusted the brake stroke sensor and recalibrated the braking system; however, the failure persisted. The vehicle was later taken to a second dealer who bled the brake lines, but the failure persisted. The manufacturer was notified of the f…

Owner-reported narrative. 30,800 miles reported. Look up ODI 11505111 at NHTSA ↗

Reported: 2022-04-13 (April 13, 2022)

Toyota Engineering & Manufacturing (Toyota) is recalling certain 2022 Lexus LX 600, Lexus NX 350h, Lexus NX 450h+, Toytoa RAV4 Hybrid, 2021-2022 Lexus LS 500h, Toyota Mirai, RAV4 PRIME, Sienna, Venza, and 2020-2022 Toyota Highlander Hybrid vehicles. The Skid Control ECU software may not turn on the Vehicle Stability Control (VSC) system when the vehicle is restarted after the driver has disabled the VSC system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."

Consequence: Driving with a deactivated stability control system increases the risk of a crash.

Remedy: Dealers will update the Skid Control ECU software, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 22TA03. Lexus' number for this recall is 22LA01.

Reported: 2023-12-20 (December 20, 2023)

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.

Consequence: An air bag that does not deploy during a crash increases the risk of injury.

Remedy: Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.

Reported: 2025-02-13 (February 13, 2025)

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2025 Sienna Hybrid vehicles. The bolts for the seatbacks on the third-row seat assemblies may not be tightened properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints," 207, "Seating Systems," and 225, "Child Restraint Anchorage Systems."

Consequence: An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury.

Remedy: Dealers will tighten the seat assembly bolts, free of charge. Owner notification letters were mailed April 1, 2025. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's number for this recall is 25TA05.

Reported: 2025-12-17 (December 17, 2025)

Vantage Mobility, LLC (VM) is recalling certain 2021-2026 Honda Odyssey, 2021-2025 Chrysler Pacifica, and Toyota Sienna vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints. The retractors may not lock, preventing the wheelchair from being properly secured.

Consequence: An unsecured wheelchair can move during transit, increasing the risk of injury.

Remedy: Dealers will inspect and replace the retractors, free of charge. Owner notification letters was mailed January 27, 2026. Owners may contact Vantage Mobility customer service at 1-800-488-9082.