The 2021 redesigned Toyota Sienna rides on an all-new platform, powered by a 245-hp, four-cylinder hybrid powertrain. Front-wheel drive is standard and all-wheel drive is optional on all trims. It won't need to be plugged in to make use of its electric power.

Reliability

Our extensive survey data, combined with our technical knowledge, allows us to expertly predict the reliability of new and redesigned models.

Predicted Reliability
Research Years * Redesign year
Worse Better
00
01
02
03
04*
05
06
07
08
09
10
11*
12
13
14
15
16
17
18
19
20
Overall Reliability Verdict
NA
POTENTIAL TROUBLE SPOTS
Engine Major
NA
Engine Minor
NA
Engine Cooling
NA
Transmission Major
NA
Transmission Minor
NA
Drive System
NA
Fuel System
NA
Electric System
NA
Climate System
NA
Suspension
NA
Brakes
NA
Exhaust
NA
Paint/Trim
NA
Body Integrity
NA
Body Hardware
NA
Power Equipment
NA
In-car Electronics
NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for about 329,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2020 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

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