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    GREEN CHOICE

    Toyota Sienna

    EPA MPG: 36 mpg

    RECALL ALERT:
    There are 3 recalls on this vehicle. Learn More.

    Reliability

    Overall Reliability

    The 2021 Sienna is less reliable than other cars from the same model year.

    The 2021 Toyota Sienna has been recalled 3 times by NHTSA. View Recalls
    Most Common Trouble Spots
    Common Trouble Spot
    Common Trouble Spot

    Owner Reported Trouble Spots

    The Reliability score is based on our latest subscriber survey of 2021 Toyota Sienna owners. The owner comments describe problems respondents experienced with this vehicle.

    Exhaust

    Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.

    What Owners Say

    Other/unsure

    "Wifi system works poorly. Dealer has done little about it. We may drop this Internet later this year."

    Anonymous, MD (2021 Toyota Sienna LE 2.5-L 4 Cyl hybrid)

    "Water leaking in both sliding side doors. Fix involved complete new sets of water drain seals and realignment of door latch lock brackets on both sliding doors. Major repair that cumulitively we were unable to use our van for approximately 3 months while it was in the shop being fixed. Fortunately was under warranty when discovered so all fixed at no cost to us. All new carpeting and underlayment replaced due to damage. Water was coming in slowly during heavy rain exposure and crossing the threshold seals, making its way underneath the flooring."

    Anonymous, WI (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    "rear lift gate struts dont work replaced a number of times"

    Anonymous, AZ (2021 Toyota Sienna Unsure 2.5-L 4 Cyl hybrid)

    "Recall for 3rd row seating and for passenger air bag"

    Anonymous, OH (2021 Toyota Sienna LE 2.5-L 4 Cyl hybrid)

    "Recall on it for a couple years"

    Anonymous, IA (2021 Toyota Sienna Unsure 2.5-L 4 Cyl hybrid)

    "The bar that opens & closes truck broke suddenly making very difficult to get my dog out of car creating dangerous situation"

    Anonymous A., NY (2021 Toyota Sienna XSE 2.5-L 4 Cyl hybrid)

    Brakes

    Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.

    What Owners Say

    Other brakes problem

    "We have complained to Toyota Dealership in Marietta OH since purchase about going to stop then feeling the van moves or lunges forward with no brakes. They dismiss the problem as unrepeatable. We have traveled 20 feet forward at times going into intersection or stop sign. Eventually MArietta said there was a recall for something similar but it did not resolve the issue. It happens maybe less after the software update but still occurs."

    Anonymous A., WV (2021 Toyota Sienna Limited 2.5-L 4 Cyl hybrid)
    Pulsation or vibration

    "When coming to a stop and the (ESC) is activated the brakes give up momentarily and it is very alarming!"

    Anonymous, CA (2021 Toyota Sienna Platinum 2.5-L 4 Cyl hybrid)
    Regenerative braking (charges battery when vehicle slows down)

    "Marietta Toyota dealer stated the inability to stop problem was part of regenerative braking but unless they see it happen could do nothing to assist. Dealer used to be C&C Toyota then was bought by Victory Toyota who has been less helpful despite our buying an extended warranty from C&C."

    Anonymous A., WV (2021 Toyota Sienna Limited 2.5-L 4 Cyl hybrid)

    Noises/Leaks

    Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.

    What Owners Say

    Air or water leaks

    "sunroof leaks water in heavy rain"

    Anonymous, NC (2021 Toyota Sienna Platinum 2.5-L 4 Cyl hybrid)
    Squeaks or rattles

    "Noise is constant when driving the vehicle. Constant not able to determine the source of the problem. The problem could be the vehicle was converted to handicap accessibility."

    Anonymous, NE (2021 Toyota Sienna Platinum 2.5-L 4 Cyl hybrid)

    "Underneath the Back seat behind driver makes an annoying squeaking noise on every tiny bump in the road. Dealer said they cant tell what it is without expensive removal and disassembly of the seat. I put a blanket over it to try to muffle the noise."

    Anonymous, OH (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    EV Battery

    Electric/hybrid battery pack failure, replacement or malfunction, or cooling.

    What Owners Say

    Electric/hybrid battery pack replacement

    "Light malfunction would go off saying hybrid system malfunction"

    Anonymous, NE (2021 Toyota Sienna Platinum 2.5-L 4 Cyl hybrid)

    "Main battery went completely dead . Had it towed to dealership Replaced the battery no problems"

    Anonymous A., IL (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    ""Unlike a conventional battery, the battery that is linked to the hybrid system died without warning and required a tow.""

    Anonymous, DC (2021 Toyota Sienna Limited 2.5-L 4 Cyl hybrid)

    Electrical Accessories

    Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.

    What Owners Say

    12V battery

    "Car left for 5 months without driving and battery needed to be replaced."

    Anonymous, AZ (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    "3 times the battery has gone dead!"

    Anonymous, CA (2021 Toyota Sienna Platinum 2.5-L 4 Cyl hybrid)

    Fuel System/Emissions

    Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.

    What Owners Say

    Sensors (includes O2 or oxygen sensor)

    ""The check engine light came on repeatedly. We replaced the gas cap based on the code that the car gave us. That worked for a day or so, but the code kept returning. We finally took it to our mechanic and it was determined to be the sensor. The part was over $500. Our mechanic took care of it and we were charged around $500 in labor.""

    Anonymous, TX (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    Body Hardware

    Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.

    What Owners Say

    Seat controls - manual

    "The one of the second row seats doesn't slide forward anymore. The plastic handle detached from the cable that releases the seat. ++++++ Also, the other second row seat doesn't fold forward anymore."

    Anonymous, LA (2021 Toyota Sienna LE 2.5-L 4 Cyl hybrid)

    Suspension/Steering

    Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

    What Owners Say

    Shocks or struts

    "started around 55000 miles, noise from front passenger strut, needed non-covered replacement. Independent garage could not source parts so had to do job at dealer."

    Anonymous, WI (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    Engine Cooling

    Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.

    What Owners Say

    Overheating

    "According to dealer, damage from something entering through the grill caused coolant loss on hybrid system, rendering car unusable."

    Anonymous, WI (2021 Toyota Sienna XLE 2.5-L 4 Cyl hybrid)

    Engine Minor

    Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.

    What Owners Say

    Other minor engine problem

    "Engine block leak"

    Anonymous, IL (2021 Toyota Sienna LE 2.5-L 4 Cyl hybrid)

    Climate System

    AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.

    Drive System

    Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.

    Transmission Major

    Transmission rebuild or replacement, torque converter, premature clutch replacement.

    Engine Electrical

    Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.

    Paint/Trim

    Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.

    Engine Major

    Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.

    Transmission Minor

    Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.

    In-car Electronics

    Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.

    2021 Minivans & 3-Row SUVs Reliability

    This Car
    vs. Similar Cars

    Toyota vs. Other New Car Brands Reliability

    Reliability History
    * Redesign year
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    Overall Reliability Verdict

    NA

    POTENTIAL TROUBLE SPOTS
    Powertrain
    NA
    NA
    NA
    NA
    Electric Motor
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
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    EV Battery
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
    NA
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    NA
    NA
    Engine Major
    NA
    NA
    NA
    NA
    Engine Minor
    NA
    NA
    NA
    NA
    Engine Cooling
    NA
    NA
    NA
    NA
    Engine Electrical
    NA
    NA
    NA
    NA
    Transmission Major
    NA
    NA
    NA
    NA
    Transmission Minor
    NA
    NA
    NA
    NA
    Drive System
    NA
    NA
    NA
    NA
    Fuel System/Emissions
    NA
    NA
    NA
    NA
    Exhaust
    NA
    NA
    NA
    NA
    Suspension/Steering
    NA
    NA
    NA
    NA
    Brakes
    NA
    NA
    NA
    NA
    Climate System
    NA
    NA
    NA
    NA
    Build Quality
    NA
    NA
    NA
    NA
    Electrical Accessories
    NA
    NA
    NA
    NA
    Body Hardware
    NA
    NA
    NA
    NA
    Paint/Trim
    NA
    NA
    NA
    NA
    Noises/Leaks
    NA
    NA
    NA
    NA
    In-car Electronics
    NA
    NA
    NA
    NA
    Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for about 380,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2025 vehicles are holding up in 20 potential trouble spots, ranging from the engine, transmission, electric motor, EV charging, and brakes, to power equipment and the electrical accessories.
    Recalls
    PROVIDED BY
    SEATS
    Feb 13, 2025
    An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury.
    Summary:
    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."
    What should you do:
    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.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.
    NHTSA CAMPAIGN ID Number: 25V086000
    Potential Number of Units Affected: 167802
    AIR BAGS
    Dec 20, 2023
    An air bag that does not deploy during a crash increases the risk of injury.
    Summary:
    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.
    What should you do:
    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.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
    NHTSA CAMPAIGN ID Number: 23V865000
    Potential Number of Units Affected: 999901
    ELECTRONIC STABILITY CONTROL (ESC)
    Apr 13, 2022
    Driving with a deactivated stability control system increases the risk of a crash.
    Summary:
    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."
    What should you do:
    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.
    For more information:
    Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
    NHTSA CAMPAIGN ID Number: 22V239000
    Potential Number of Units Affected: 458110
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