Compare the2024 Honda OdysseyVS 2023 Toyota Sienna

Safety
Reliability
Engine
Fuel Economy and Range
Brakes and Stopping
Tires and Wheels
Chassis
Passenger Space
Cargo Capacity
Ergonomics
Recommendations

Safety

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The Honda Odyssey has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Sienna doesn’t offer a front passenger side knee airbag.

Using vehicle speed sensors and seat sensors, smart airbags in the Odyssey deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The Odyssey’s side airbags will shut off if a child is leaning against the door. The Sienna’s side airbags don’t have smart features and will always deploy full force.

The Odyssey has a standard Whiplash Mitigation Front Seat Design, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Mitigation Front Seat Design system moves the headrests forward to prevent neck and spine injuries. The Sienna doesn’t offer a whiplash protection system.

Both the Odyssey and the Sienna have standard driver and passenger frontal airbags, front side-impact airbags, driver knee 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, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available rear parking sensors.

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

	Odyssey	Sienna
OVERALL STARS	5 Stars	4 Stars
	Driver
STARS	5 Stars	3 Stars
HIC	176	215
Neck Injury Risk	27%	61%
Neck Stress	184 lbs.	389 lbs.
Neck Compression	18 lbs.	132 lbs.
Leg Forces (l/r)	95/82 lbs.	323/323 lbs.
	Passenger
STARS	5 Stars	4 Stars
Neck Injury Risk	32%	48%
Neck Stress	101 lbs.	200 lbs.
Leg Forces (l/r)	324/302 lbs.	448/220 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 flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Honda Odyssey is safer than the Toyota Sienna:

	Odyssey	Sienna
	Front Seat
STARS	5 Stars	5 Stars
Chest Movement	.5 inches	.5 inches
Abdominal Force	83 lbs.	123 lbs.
Hip Force	321 lbs.	348 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Max Damage Depth	12 inches	12 inches
HIC	369	371
Hip Force	472 lbs.	499 lbs.

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

Reliability

The engine in the Odyssey has a single overhead cam for simplicity. The engine in the Sienna has dual overhead cams, which add to the number of moving parts and the complexity of the cylinder heads.

J.D. Power and Associates rated the Odyssey second among minivans in their 2023 Initial Quality Study. The Sienna isn’t in the top three.

J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that Honda vehicles are better in initial quality than Toyota vehicles. J.D. Power ranks Honda above average in initial quality. With 4 more problems per 100 vehicles, Toyota is rated below average.

Engine

The Odyssey’s standard 3.5 SOHC V6 produces 35 more horsepower (280 vs. 245) than the Sienna’s 2.5 DOHC 4-cylinder hybrid.

As tested in Motor Trend the Honda Odyssey is faster than the Toyota Sienna:

	Odyssey	Sienna
Zero to 60 MPH	6.6 sec	7.9 sec
Quarter Mile	15 sec	16.1 sec
Speed in 1/4 Mile	94.6 MPH	88.3 MPH

Fuel Economy and Range

An engine control system that can shut down some of the engine’s cylinders helps improve the Odyssey’s fuel efficiency. The Sienna doesn’t offer a system that can shut down part of the engine.

The Odyssey has 1.5 gallons more fuel capacity than the Sienna (19.5 vs. 18 gallons), for longer range between fill-ups.

The Odyssey has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Sienna doesn’t offer a cap-less fueling system.

Brakes and Stopping

The Odyssey stops much shorter than the Sienna:

	Odyssey	Sienna
70 to 0 MPH	180 feet	190 feet	Car and Driver
60 to 0 MPH	123 feet	131 feet	Motor Trend

Tires and Wheels

The Odyssey’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 Sienna LE/XLE’s standard 65 series tires.

For better load carrying, ride, handling and brake cooling the Odyssey has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Sienna LE/XLE.

The Odyssey has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Sienna doesn’t offer vehicle monitored tire inflation.

Chassis

The front grille of the Odyssey uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Sienna doesn’t offer active grille shutters.

The Odyssey uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Sienna doesn’t offer active noise cancellation.

Passenger Space

The Odyssey has .6 inches more front headroom, .6 inches more front legroom, .7 inches more front shoulder room, 1 inch more rear legroom, .9 inches more third row headroom and 1.5 inches more third row shoulder room than the Sienna.

Cargo Capacity

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

	Odyssey	Sienna
Behind Third Seat	38.6 cubic feet	33.5 cubic feet
Third Seat Folded	92.3 cubic feet	75.2 cubic feet
Max Cargo Volume	158 cubic feet	101 cubic feet

The Sienna’s spare tire is stored in the cargo area, where it diminishes the useable cargo capacity and interferes with loading and unloading. The Odyssey’s spare is out of the way under the passenger floor.

Ergonomics

The Odyssey has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Sienna doesn’t offer a remote starting system.

The Odyssey Touring/Elite has a standard center folding armrest for the third row rear passengers. A center armrest helps make rear passengers more comfortable and can provide a barrier between children. The Sienna doesn’t offer a third row rear seat center armrest.

Recommendations

The Honda Odyssey has won recognition from these important consumer publications:

	Odyssey	Sienna
Consumer Reports® Recommends	TRUE	TRUE
Car Book “Best Bet”	TRUE	n/a

Motor Trend performed a comparison test in its August 2021 issue and they ranked the Honda Odyssey Elite two places higher than the Toyota Sienna Platinum AWD.

J.D. Power and Associates rated the Odyssey second among minivans in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The Sienna isn’t in the top three.