2020 Toyota Sienna vs. 2019 Kia Sedona

Detailed Review, Specifications & Comparison

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The Sienna Limited Premium FWD’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Sedona doesn’t offer pre-crash pretensioners.

The Sienna offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Sedona doesn’t offer all-wheel drive.

The Toyota Sienna has Daytime Running Lights to help keep it more visible under all conditions. Canadian government studies show that driving with lights during the day reduces accidents by 11% by making vehicles more conspicuous. The Sedona doesn’t offer Daytime Running Lights.

The Sienna has standard Safety Connect™, which uses a global positioning satellite (GPS) receiver and a cellular system to help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Sedona doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the Sienna and the Sedona have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, rearview cameras, available blind spot warning systems, around view monitors and rear cross-path warning.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Toyota Sienna is safer than the Kia Sedona:





5 Stars

5 Stars




Neck Compression

50 lbs.

52 lbs.

Leg Forces (l/r)

330/307 lbs.

18/876 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a post at 20 MPH, results indicate that the Toyota Sienna is safer than the Kia Sedona:



Into Pole


5 Stars

5 Stars

Spine Acceleration

33 G’s

34 G’s

Hip Force

586 lbs.

619 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.


The Sienna’s 5 year corrosion warranty has no mileage limitations, but the corrosion warranty on the Sedona runs out after 100,000 miles.

Toyota pays for scheduled maintenance on the Sienna for 2 years and 25000 miles. Toyota will pay for oil changes, lubrication and any other required maintenance. Kia doesn’t pay scheduled maintenance for the Sedona.

There are over 59 percent more Toyota dealers than there are Kia dealers, which makes it much easier should you ever need service under the Sienna’s warranty.


J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Toyota vehicles are more reliable than Kia vehicles. J.D. Power ranks Toyota second in reliability, above the industry average. With 18 more problems per 100 vehicles, Kia is ranked 10th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Toyota vehicles are more reliable than Kia vehicles. Consumer Reports ranks Toyota second in reliability. Kia is ranked fifth.


The Sienna’s 3.5 DOHC V6 produces 20 more horsepower (296 vs. 276) and 15 lbs.-ft. more torque (263 vs. 248) than the Sedona’s 3.3 DOHC V6.

As tested in Car and Driver the Toyota Sienna is faster than the Kia Sedona:



Zero to 30 MPH

2.5 sec

2.8 sec

Zero to 60 MPH

6.9 sec

7.4 sec

Zero to 100 MPH

18.1 sec

19.4 sec

5 to 60 MPH Rolling Start

7.1 sec

7.7 sec

Passing 30 to 50 MPH

3.7 sec

4 sec

Quarter Mile

15.4 sec

15.8 sec

Speed in 1/4 Mile

93 MPH

91 MPH

Fuel Economy and Range

On the EPA test cycle the Sienna FWD gets better fuel mileage than the Sedona (19 city/26 hwy vs. 18 city/24 hwy).

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Toyota Sienna higher (5 out of 10) than the Kia Sedona (3). This means the Sienna produces up to 16.5 pounds less smog-producing pollutants than the Sedona every 15,000 miles.

Brakes and Stopping

For better stopping power the Sienna’s brake rotors are larger than those on the Sedona:



Front Rotors

12.9 inches

12.6 inches

Rear Rotors

12.2 inches

11.9 inches

The Sienna stops shorter than the Sedona:



60 to 0 MPH

121 feet

122 feet

Motor Trend

Tires and Wheels

The Sienna L/LE/XLE’s standard tires provide better handling because they have a lower 60 series profile (height to width ratio) that provides a stiffer sidewall than the Sedona L/LX’s standard 65 series tires. The Sienna SE’s tires have a lower 50 series profile than the Sedona SXL’s 55 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Sienna can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Sedona doesn’t offer run-flat tires.

Passenger Space

The Sienna has 1.2 inches more front headroom, 1.1 inches more front shoulder room, .3 inches more rear headroom, 1.5 inches more rear shoulder room, 1.5 inches more third row legroom, .3 inches more third row hip room and 1.7 inches more third row shoulder room than the Sedona.

Cargo Capacity

The Sienna’s cargo area provides more volume than the Sedona.



Behind Third Seat

39.1 cubic feet

33.9 cubic feet

Third Seat Folded


78.4 cubic feet

Third Seat Removed

87.1 cubic feet


Max Cargo Volume

150 cubic feet

142 cubic feet

A low lift-over cargo hatch design makes loading and unloading the Sienna easier. The Sienna’s cargo hatch lift-over height is 23.6 inches, while the Sedona’s liftover is 26 inches.

Pressing a switch automatically lowers or raises the Sienna Limited FWD’s third row seats, to make changing between cargo and passengers easier. The Sedona doesn’t offer automatic folding seats.


The Sienna’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Sedona’s standard passenger windows don’t open or close automatically.

The Sienna Limited Premium’s standard wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield. The Sedona’s manually variable intermittent wipers have to be constantly adjusted.

The Sienna Limited has standard automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Sedona offers an automatic rear view mirror, but its side mirrors don’t dim.

The Sienna has a standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air conditioning is only available on the Sedona EX/SX/SXL.

Economic Advantages

The Sienna will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Sienna will retain 45.34% to 51.03% of its original price after five years, while the Sedona only retains 33.34% to 38.67%.

According to The Car Book by Jack Gillis, the Sienna is less expensive to operate than the Sedona because typical repairs cost less on the Sienna than the Sedona, including $12 less for front brake pads and $42 less for front struts.


Consumer Reports® recommends both the Toyota Sienna and the Kia Sedona, based on reliability, safety and performance.

Car and Driver performed a comparison test in its March 2015 issue and they ranked the Toyota Sienna Limited first. They ranked the Kia Sedona SXL third.

The Toyota Sienna outsold the Kia Sedona by almost five to one during 2018.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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