← Back to the list
Toyota Sienna
2021 · hybrid, van
9 measured figures
9 of the 9 figures this market publishes for a car like this one are measured for this car. This market publishes no overall score, so there is no share of a composite weight to measure confidence against; figures_measured says how many of this market's figures the row carries, and contributing_publishers says who measured them
Measured figures
Fuel economy36.2 mpg (US gallons)Measured by NRCan · configuration: Sienna · also 6.5 L/100 km
Tailpipe CO₂153 g/kmMeasured by NRCan · CO₂ basis: tailpipe_rated · configuration: Sienna · also 246 g/mile
Engine horsepowerFree with an accountMeasured for this car, with its publisher and basis
Kerb weightFree with an accountMeasured for this car, with its publisher and basis
EPA test weightFree with an accountMeasured for this car, with its publisher and basis
WarrantyFree with an accountMeasured for this car, with its publisher and basis
Recall campaignsFree with an accountMeasured for this car, with its publisher and basis
NHTSA overall ratingFree with an accountMeasured for this car, with its publisher and basis
Complaints per 10,000 builtFree with an accountMeasured for this car, with its publisher and basis
7 more measured figures for this car — Engine horsepower, Kerb weight, EPA test weight, Warranty, Recall campaigns, NHTSA overall rating, Complaints per 10,000 built — each with the publisher that measured it and the basis it is on. Free to read with an account.
Figures this car does not carry
Fuel economy (MPGe)Not published for this carFuel economy (MPGe) is published for electric and hydrogen cars, whose economy is published as MPGe: energy converted at 33.7 kWh per gallon, not fuel burned; this car is not one of them, so the figure is not the same quantity for it
Tailpipe CO₂ (charge-weighted)Not published for this carthis car's CO₂ is published as the tailpipe rating for the car driven as rated on the test cycle (153 g/km), not as a composite weighted across electric and fuel-burning miles, so it is not the quantity this list orders. It is published as Tailpipe CO₂
HorsepowerNot published for this carNot published for this car. The record's own reason is free to read with an account.
PriceNot published for this carNot published for this car. The record's own reason is free to read with an account.
5-Year Running Costs
| Fuel | US$6,185 |
| Insurance | US$7,100 (modelled) |
| Maintenance | US$5,200 (class estimate) |
| Repairs | US$8,000 (modelled) |
| Depreciation | not estimated — we hold no purchase price for this car, and it is not assumed. |
| Total | not estimated — a component above is unknown or modelled |
Running costs only — the purchase price is not included. The five-year running cost is an ESTIMATE, not a measurement of this car: only its fuel half is computed from the car's own measured consumption and a dated pump price (see fuel_price_source and fuel_price_as_of in the market's own figures); insurance, maintenance and repairs are class models. It orders no list and is not one of this market's published figures. Fuel is this car's own combined consumption over 15,000 km a year at 1.738 CAD a litre of petrol (Statistics Canada. Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography; Canada; regular unleaded gasoline at self service filling stations, 2026-08). Adapted from Statistics Canada, Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography, August 2026. This does not constitute an endorsement by Statistics Canada of this product. Costs are in US dollars; the CAD pump price is converted at 1 CAD = 0.73 USD, the rate set on 2026-09-13. Insurance, maintenance and repairs are models, not figures for this car: insurance from its power, weight and crash rating, maintenance from its make's class, repairs from its complaint and recall counts. They are shown for scale and are not used to rank it. Confidence is low: several components are modelled from class averages.
Known Issues
SERVICE BRAKES
86 complaint(s) · 8 report a crash, fire, injury or death
After the vehicle has been parked for a while (>1 hour in my experience), upon startup, when reversing down a hill, the brakes give the following intermittent (maybe one out of four start ups) problem…
UNKNOWN OR OTHER
30 complaint(s) · 4 report a crash, fire, injury or death
A lot Wind noise coming from driver side window and windshield at freeway speed. Report to Toyota service department but nothing was done to resolve the problem
AIR BAGS
29 complaint(s) · 2 report a crash, fire, injury or death
Keep in mind: BRAND NEW SIENNA!!! 1. What component or system failed or malfunctioned, and is it available for inspection upon request? -The main and MOST important component was the ENTIRE airbag sy…
SEATS
22 complaint(s) · 2 report a crash, fire, injury or death
When the 3rd-row folding seats are down and stored and the breaks are applied suddenly the seat will release and attempt to return a nonstored position. I had a box of water on top of the seat to kee…
ELECTRICAL SYSTEM
16 complaint(s) · 2 report a crash, fire, injury or death
The navigation/touch screen has turned off and on during driving. The navigation, audio system, backup camera view were unable to be used. The next available appointment is on September 15th, 2022 a…
ENGINE
11 complaint(s) · 2 report a crash, fire, injury or death
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 WA…
POWER TRAIN
10 complaint(s) · 2 report a crash, fire, injury or death
The contact owns a 2021 Toyota Sienna. The contact stated while driving approximately 65 MPH, the vehicle would jerk and swerve to the left or the right making the vehicle difficult to control. The co…
STRUCTURE:BODY
9 complaint(s) · 1 reports a crash, fire, injury or death
Both side power doors become inoperable if they sit open for more than a few moments. They do not close by switch, key fob, or by pushing. Starting vehicle does not activate or reset. Doors must physi…
VEHICLE SPEED CONTROL
9 complaint(s) · 1 reports a crash, fire, injury or death
Since we have owned the vehicle (April 2021), we've had three separate incidences where, when pulling out into traffic from a stop, and the accelerator (gas pedal) is pushed, the vehicle begins to mov…
SEAT BELTS
8 complaint(s) · 1 reports a crash, fire, injury or death
The driver-side second-row seatbelt goes slack for no reason while driving. All tension is released, and the loose belt falls forward. This is a serious safety issue for the child riding in that sea…
The 10 components named in the most complaints are shown, of 34 named in all.
These complaints are filed under SIENNA HYBRID, redundant SIENNA, names that include one NHTSA also uses for other versions of this car, so some may concern those versions.
Data sources
- NRCan — fuel consumption ratings and vehicle class
- NHTSA — crash-test ratings, recalls and owner complaints
- New York State DMV — New York registrations, the cross-check on that denominator
- NHTSA — vehicles built for the US market, the complaint-rate denominator
- carstandings.com — basic-warranty terms, from this site's reviewed table
- EPA — horsepower and EPA test weight, from the Test Car List
- EPA — production volumes by make, from Automotive Trends
- NHTSA — body style and the crash-tested vehicle's curb weight, from the NCAP crash-test file
- NHTSA — body style and engine horsepower, from the vPIC VIN decoder