The service and repair manual for the 2021 Toyota Sienna, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Toyota published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Trims | LE · Limited · Platinum · XLE · XSE |
| Federal record | 2 recalls · 0 complaints · 90 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 Sienna manual
03 / ContentsSections in the manual
- Quick Lookups 101
- General Information 1,519
- Accessories & Equipment 6,236
- Heating, Ventilation & A/C (HVAC) 395
- Body & Frame 1,849
- Hybrid/Electric Powertrain 5,992
- Brakes 2,156
- Maintenance 208
- Drivelines & Axles 270
- Restraints 3,856
- Electrical 615
- Steering 257
- Engine Mechanical 443
- Suspension 227
- Engine Performance 7,356
- Transmission 220
- Front Axle Shaft Nut 294
- Rear Axle Shaft Nut (AWD) 294
- Cap Pressure Brand-new Cap, 93
- Used Cap, 79
04 / Known issuesRecalls on federal record for the 2021 Sienna
- Equipment Adaptive/Mobility — wheelchair restraints/securement › latch/anc · 25V877000An unsecured wheelchair can move during transit, increasing the risk of injury.
- Electronic Stability Control (Esc) — control module › software · 22V239000Driving with a deactivated stability control system increases the risk of a crash.
Owners have filed 0 complaints and Toyota has issued 90 technical service bulletins for the 2021 Sienna. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 Sienna manual
Is this manual specific to the 2021 Sienna?
Yes. It is the OEM manual matched to the 2021 model year across the LE, Limited, Platinum, XLE, XSE trims. Specifications and procedure sequences are the ones Toyota published for this year.
What 2021 Sienna problems does it help with?
2 recalls are on federal record for the 2021 Sienna, covering equipment adaptive/mobility, electronic stability control (esc). The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Toyota dealers.
Does it include 2021 Sienna wiring diagrams?
Yes — the complete wiring diagrams for the 2021 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $53.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther Sienna years and 2021 Toyota models
2025 Sienna · 2024 Sienna · 2023 Sienna · 2022 Sienna · 2020 Sienna · 2019 Sienna · 2018 Sienna · 2017 Sienna · 2016 Sienna · 2015 Sienna · all 28 years
2021 Toyota 4Runner · 2021 Toyota Avalon · 2021 Toyota C-HR · 2021 Toyota Camry · 2021 Toyota Corolla · 2021 Toyota Crown · 2021 Toyota Highlander · 2021 Toyota Land Cruiser · 2021 Toyota Mirai · 2021 Toyota Prius · 2021 Toyota Prius Prime · 2021 Toyota RAV4 · every 2021 model