This page covers 2 recalls, 35 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2020 Toyota Sienna.
20 mpg combined
11.8 L/100km
Minivan - 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
5/5 Overall
NHTSA 5-Star Safety Rating
The 2020 Sienna's complaint picture is led by powertrain and fuel system issues, with electrical problems close behind. On the powertrain side, owners most often describe transmission noise, whining or squealing sounds during acceleration, with dealers in several cases pointing to the transmission itself as the source. A smaller cluster of owners reports the engine shutting off unexpectedly while driving, and at least one report ties that to a low-pressure fuel pump failure. The electrical system complaints include the power sliding doors binding shut and becoming inoperable, with owners noting that disabling the power door function doesn't free the door, the cable mechanism can fail in a way that leaves the door physically stuck closed.
35
Total Complaints
1
Fire-Related
By System
The 2020 Toyota Sienna has two recalls, both rated at the same severity level: one where a steering shaft extension can fracture and cause complete loss of steering, and one where the fuel pump can fail and stall the engine while driving.
The steering issue affects only vehicles modified by Braun Corporation, a company that adapts vehicles for accessibility, so this recall applies to a specific subset of Siennas rather than all 2020 models. The fuel pump recall is broader and covers a range of Toyota and Lexus vehicles from this era; on affected Siennas, the pump can stop delivering fuel to the engine, cutting power without warning while the vehicle is in motion.
At a glance
What can fail
The low-pressure fuel pump inside the fuel tank may fail, potentially stopping fuel delivery to the engine.
What the fix does
Dealers will replace the fuel pump assembly with an improved version at no cost to you.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP). Based on 2 tested variants; worst-case ratings shown.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The steering shaft extensions may have been improperly manufactured, which can cause them to fracture.
What the fix does
Dealers will replace the steering shaft extensions at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
