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2021 Toyota Sienna Hybrid 2WD
The 2021 Toyota Sienna Hybrid 2WD has 2 NHTSA safety recalls on file, 34 owner complaints, and gets about 36 mpg combined. Here's the full free record from NHTSA and the EPA.
SPECS
2021 Toyota Sienna Hybrid 2WD at a glance
- Engine
- 4-cyl 2.5L
- Cylinders
- 4
- Displacement
- 2.5 L
- Drivetrain
- Front-Wheel Drive
- Transmission
- Automatic (AV-S6)
- Body
- Minivan - 2WD
- Fuel
- Regular
Source: EPA / NHTSA vPIC, as of July 12, 2026.
SAFETY RECALLS · NHTSA
2 openAir Bags
20/12/2023
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.
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.
Seats
13/02/2025
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."
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.
NHTSA has opened one or more investigations covering this model. Recalls can follow an investigation, so check NHTSA for the latest before you buy.
Open safety recalls are free to fix at any franchised dealer. What recalls mean → Source: NHTSA recalls, as of July 12, 2026. Recalls can be issued any time, confirm by VIN at nhtsa.gov before you buy.
OWNER COMPLAINTS · NHTSA
34 filed- 12
AIR BAGS
SRS light has been showing up on the dashboard, off and on for 3 weeks. Diagnostic reader completed by the dealership states it is an airbag module malfunction of the 2nd row left passenger seat. The seat has never been removed, there have
- 3
SERVICE BRAKES
Car surged as brakes were applied when stopping. Very dangerous. Could have easily rear-ended another vehicle. Surge was immediate and occurred when brake was being applied. Not confirmed yet, but another driver of vehicle told me of ha
- 3
VISIBILITY/WIPER
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 UNSAF
- 2
POWER TRAIN
Unexpected failure of the acceleration pedal to accelerate from a complete stop to a go at an intersection. The electric vehicle (EV) motor began accelerating up to about 3 mph than instantly had a failure to accelerate, even with the gas p
- 2
SUSPENSION
Both front struts of the vehicle have failed and are leaking. There is only 36,000 miles on this vehicle when they should last 200,000 miles per Toyota's service department. Toyota refuses to acknowledge this is their problem and that it's
- 2
ENGINE
The contact owned a 2021 Toyota Sienna Hybrid. The vehicle was parked in the driveway when an explosion occurred; the vehicle burned down. The contact was inside the residence when a loud noise was heard, and the house "rocked." The contact
Problems owners reported to the government, useful for spotting patterns, not proof any one car has them. What complaints mean → Source: NHTSA complaints, as of July 12, 2026. Owner-submitted reports, not verified diagnoses.
CRASH-TEST RATINGS · NHTSA NCAP
- Overall
- ★★★★★
- Frontal
- ★★★★☆
- Side
- ★★★★★
- Rollover
- ★★★★☆
Government crash tests of this model; not every trim or year is tested. Source: NHTSA NCAP, as of July 12, 2026.
FUEL & RUNNING COST · U.S. EPA
- Combined
- 36 mpg
- City / Hwy
- 36 / 36
- Est. fuel / yr
- $1,750
- CO₂ / mi
- 246 g
EPA lab estimates; real mpg varies by how you drive. Source: EPA fueleconomy.gov, as of July 12, 2026. Annual cost assumes 15,000 mi/yr at EPA's reference price.
All figures above come from free U.S. government sources: NHTSA (recalls, complaints, investigations, crash tests) and the EPA (fuel economy and specs). We don't show market price, insurance cost, or proprietary reliability scores, because there's no free, reliable public source for them. For a verdict on a specific listing, with a fair-offer number and what to ask the seller, that's the VINly app.
BEFORE YOU BUY
What to check on this car
Confirm the recalls were fixed
This model has 2 open NHTSA recalls (including the air bags). Recall repairs are free at the dealer, so ask the seller for proof the remedy was performed, or verify by VIN at nhtsa.gov before you buy.
Have a mechanic check the air bags
Owners report problems with the air bags more than anything else on this model. Call it out specifically during a pre-purchase inspection.
Watch for a pending investigation
NHTSA has an open investigation covering this model. A recall can follow an investigation, so check nhtsa.gov for the latest before you commit.
-
Test-drive the basics
Cold start, full-lock steering both ways, firm brakes with no pulsing, smooth shifts, and every electronic feature. Warning lights should come on at key-on, then go out.
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Check the title and the VIN
Confirm the title status in hand matches the listing, and that the VIN matches across the dash, door jamb, and title. VINly does not show ownership or accident history, for that, run a paid report like Carfax.
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Ask the seller the right questions
Why they are selling, any service records, accident or panel-repaint history, how many owners, and whether any open recalls were completed.
See the full used-car inspection checklist. None of this replaces a hands-on inspection by a mechanic.
Quick answers
What is recalled on the 2021 Toyota Sienna Hybrid 2WD? +
NHTSA lists 2 safety recalls for the 2021 Toyota Sienna Hybrid 2WD, including the air bags. See the full list above, and confirm by VIN at nhtsa.gov.
What gas mileage does the 2021 Toyota Sienna Hybrid 2WD get? +
The EPA rates the 2021 Toyota Sienna Hybrid 2WD at 36 mpg combined (36 city / 36 highway), about $1,750 a year in fuel.
How safe is the 2021 Toyota Sienna Hybrid 2WD? +
NHTSA's NCAP program gives the 2021 Toyota Sienna Hybrid 2WD 5 out of 5 stars overall, with 4 stars for rollover resistance.
What do owners complain about on the 2021 Toyota Sienna Hybrid 2WD? +
Owners have filed 34 complaints with NHTSA for the 2021 Toyota Sienna Hybrid 2WD. The most-reported area is air bags.
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