Pre-purchase inspection · 2021 Toyota Sienna
Toyota Hybrid System II is proven. 36 mpg combined in a minivan.
Confirm EV mode engages. No HV battery warning lights.
Est. cost: Routine hybrid maintenance
Source: Toyota THS-II reliability
Young enough that significant degradation is unlikely. Verify no alerts.
No HV battery warnings. Test EV range estimate.
Est. cost: Free Toyota battery check
Source: Toyota hybrid standard
Rear electric motor adds AWD. Coupling fluid every 30k.
Confirm AWD mode engages. No binding in tight turns.
Est. cost: $150–$200 service
Source: Toyota Sienna AWD standard
Young vehicle. Standard checks.
Request records and run nhtsa.gov/recalls.
Est. cost: n/a
Source: AutoVetting editorial
The 5th-generation Sienna (XL50, 2021-present) is hybrid-only in the U.S., so there is no engine fork to decode — every 2021 Sienna uses the same 2.5L A25A-FXS four-cylinder (245 hp combined) with an electronic CVT, and the 8th VIN digit encodes only that single hybrid combination. The decode that actually matters is the 10th VIN digit (model year): 'M' = 2021, confirming the new XL50 hybrid rather than the unrelated 4th-gen Sienna (2011-2020), which used a 3.5L 2GR V6 gas engine with a conventional automatic and shares neither parts nor inspection priorities. The only real configuration variant on a 2021 is drivetrain — front-wheel drive or available electric-rear-motor AWD — so confirm whether AWD is present (check for the rear electric coupling and its 30k-mile fluid service). Early A25A-FXS cars (2021) had reports of EGR-system issues, so verify no related warning lights. Decode the full VIN at vpic.nhtsa.dot.gov and run it at nhtsa.gov for open recalls before purchase.