Compare the2022 Honda OdysseyVS 2020 Toyota Sienna

Safety
Reliability
Engine
Fuel Economy and Range
Transmission
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Chassis
Passenger Space
Cargo Capacity
Ergonomics
Economic Advantages
Recommendations

Safety

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In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Odyssey are reminded to check the back seat if they opened the rear door before starting out. The Sienna doesn’t offer a back seat reminder.

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.

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, rearview cameras, available blind spot warning systems, rear parking sensors 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 Honda Odyssey is safer than the Toyota Sienna:

	Odyssey	Sienna
OVERALL STARS	5 Stars	4 Stars
	Driver
STARS	5 Stars	5 Stars
HIC	176	201
Neck Injury Risk	27%	27%
Neck Stress	184 lbs.	260 lbs.
Neck Compression	18 lbs.	50 lbs.
Leg Forces (l/r)	95/82 lbs.	330/307 lbs.
	Passenger
STARS	5 Stars	4 Stars
HIC	247	413
Neck Injury Risk	32%	35%
Neck Stress	101 lbs.	218 lbs.
Neck Compression	63 lbs.	80 lbs.
Leg Forces (l/r)	324/302 lbs.	604/305 lbs.

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

A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Honda Odyssey is safer than the Sienna:

	Odyssey	Sienna
Overall Evaluation	GOOD	ACCEPTABLE
Restraints	GOOD	ACCEPTABLE
Head Neck Evaluation	GOOD	GOOD
Peak Head Forces	0 G’s	0 G’s
Steering Column Movement Rearward	2 cm	5 cm
Chest Evaluation	GOOD	GOOD
Max Chest Compression	24 cm	24 cm
Hip & Thigh Evaluation	GOOD	GOOD
Hip & Thigh Injury Risk R/L	0%/0%	2%/0%
Lower Leg Evaluation	GOOD	GOOD
Tibia index R/L	.5/.43	.54/.34

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	.6 inches
Abdominal Force	83 G’s	144 G’s
Hip Force	321 lbs.	391 lbs.
	Rear Seat
STARS	5 Stars	5 Stars
HIC	125	143
Hip Force	709 lbs.	746 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Max Damage Depth	12 inches	17 inches
HIC	369	404
Hip Force	472 lbs.	586 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 2020 Initial Quality Study. The Sienna isn’t in the top three.

Engine

As tested in Car and Driver the Honda Odyssey is faster than the Toyota Sienna:

	Odyssey	Sienna
Zero to 60 MPH	6.6 sec	6.9 sec
Zero to 100 MPH	17 sec	18.1 sec
5 to 60 MPH Rolling Start	6.6 sec	7.1 sec
Passing 30 to 50 MPH	3.5 sec	3.7 sec
Passing 50 to 70 MPH	4.1 sec	5.2 sec
Quarter Mile	15.2 sec	15.4 sec
Speed in 1/4 Mile	95 MPH	93 MPH

Fuel Economy and Range

On the EPA test cycle the Odyssey gets better fuel mileage than the Sienna FWD (19 city/28 hwy vs. 19 city/26 hwy).

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.

In heavy traffic or at stoplights the Odyssey’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Sienna doesn’t offer an automatic engine start/stop system.

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.

Transmission

A 10-speed automatic is standard on the Honda Odyssey, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Sienna.

Brakes and Stopping

The Odyssey stops shorter than the Sienna:

	Odyssey	Sienna
70 to 0 MPH	180 feet	181 feet	Car and Driver
60 to 0 MPH	125 feet	128 feet	Motor Trend

Tires and Wheels

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 L/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.

Suspension and Handling

For superior ride and handling, the Honda Odyssey has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Toyota Sienna has a rear torsion beam axle, with a semi-independent rear suspension.

Chassis

To almost totally eliminate engine vibration in the passenger area, the Odyssey has an electronically controlled liquid-filled main engine mount. A computer-controlled electric current in the liquid changes its viscosity, allowing the mount to dampen the engine completely at all RPMs. The Sienna uses conventional solid rubber engine mounts.

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 .4 inches more front legroom, 3.3 inches more rear legroom and 1.8 inches more third row legroom than the Sienna.

Cargo Capacity

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

	Odyssey	Sienna
Third Seat Folded	92 cubic feet	n/a
Third Seat Removed	n/a	87.1 cubic feet
Max Cargo Volume	158 cubic feet	150 cubic feet

A low lift-over cargo hatch design makes loading and unloading the Odyssey easier. The Odyssey’s cargo hatch lift-over height is 22.5 inches, while the Sienna’s liftover is 23.6 inches.

The Odyssey’s cargo area is larger than the Sienna’s in almost every dimension:

	Odyssey	Sienna
Length to seat (3rd/2nd/1st)	25”/56”/91”	23.5”/54”/74”
Max Width	50”	51.5”
Min Width	48”	47.5”
Height	54”	45”

To make loading groceries and cargo easier when your hands are full, the Odyssey Elite’s liftgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The Sienna doesn’t offer a hands-free gesture to open its liftgate, forcing you to put cargo down if your hands are full.

Ergonomics

The Odyssey’s power parking brake sets with one touch and releases with one touch or automatically. The Sienna’s parking brake has to released manually.

If the windows are left open on the Odyssey the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. The driver of the Sienna can only operate the windows from inside the vehicle, with the ignition on.

The Odyssey’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Sienna’s power lock, power mirror and cruise control switches are unlit, making them difficult to find at night and operate safely.

Standard air-conditioned seats in the Odyssey Elite keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Sienna doesn’t offer air-conditioned seats.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Honda Odyssey Elite has a standard wireless phone charging system (Qi) in the center console. The Sienna doesn’t offer wireless personal charging.

Economic Advantages

Insurance will cost less for the Odyssey owner. The Complete Car Cost Guide estimates that insurance for the Odyssey will cost $20 to $1905 less than the Sienna over a five-year period.

According to The Car Book by Jack Gillis, the Odyssey is less expensive to operate than the Sienna because it costs $582 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Odyssey than the Sienna, including $73 less for a water pump, $230 less for fuel injection, $190 less for a fuel pump, $31 less for front struts and $1045 less for a timing belt/chain.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Honda Odyssey will be $925 to $3356 less than for the Toyota Sienna.

Recommendations

The Car Book by Jack Gillis recommends the Honda Odyssey, based on economy, maintenance, safety and complaint levels. The Toyota Sienna isn't recommended.

Car and Driver performed a comparison test in its September 2017 issue and they ranked the Honda Odyssey Elite higher than the Toyota Sienna Limited.

J.D. Power and Associates rated the Odyssey first 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.