2021 Toyota Sienna
120,000 mile service checklist
Here's exactly what your factory maintenance schedule calls for at this mileage — and what each item typically costs.
120,000 mile service
- Engine oil and filter change (0W-16 full synthetic)
- Tire rotation
- Replace spark plugs — iridium, OEM-spec (Denso or NGK iridium per Toyota parts catalog); this is the factory long-life interval
- Replace engine coolant — Toyota Super Long Life Coolant flush and refill
- Replace brake fluid
- Replace accessory drive belt
- Inspect hybrid inverter coolant pump and reservoir; replace inverter coolant if contaminated
- Inspect hybrid (HV) traction battery state of health and cooling fan/intake filter operation — the HV battery itself has no scheduled fluid or replacement service under normal use and is covered by a separate long hybrid battery warranty
- Full suspension and steering inspection
- Inspect rear e-axle motor mounts and connectors (AWD models)