2021 Toyota SIENNA HYBRID
Problems, Recalls & Reliability Report
Quick Summary
The 2021 Toyota SIENNA HYBRID has 41 owner complaints filed with NHTSA — that's 0.6x the segment average of 74. The most common issue is air bags problems (29% of all complaints), specifically: the contact owns a 2021 toyota sienna hybrid. the contact received notification of nhtsa campaign number: 23v865000 (air bags) however, the part to do the recall repair was not yet available. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the. There are 2 recalls issued for this model year. ⚠️ 1 fire report filed.
41
Total Complaints
2
Recalls Issued
5/5
Safety Stars
0.6x
vs Segment Avg
Known Problems(top 5 of 8)
AIR BAGS
12 complaints- • The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The
- • The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amou
- • The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of
“The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The”
— NHTSA complaint filing
When Problems Appear on the 2021 Toyota SIENNA HYBRID
Based on 16 owner complaints that included an odometer reading. Median mileage at time of complaint: 16K miles. Most complaints cluster in the 0-30K miles range.
Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.
Recalls (2)
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.
Risk: An air bag that does not deploy during a crash increases the risk of injury.
Fix: Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.
Fuel Cost Calculator for 2021 Toyota SIENNA HYBRID
Live EIA pricesBased on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.
5-Year Gas Price History
EIA weekly retail data · 2021 → todaySource: US Energy Information Administration weekly retail gasoline prices.
Estimated Insurance Cost for 2021 Toyota SIENNA HYBRID
How this estimate is calculated
Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.
Maintenance & Warranty
Recommended Toyota SIENNA HYBRID Service Intervals
0W-20 synthetic oil recommended. ToyotaCare covers first 2 years / 25K miles of scheduled maintenance for new vehicles. Hybrid battery: 10 yr / 150K miles warranty.
"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.
Toyota New-Vehicle Warranty Coverage
Hybrid battery is 10yr/150K miles for 2020+ hybrids. ToyotaCare (2yr/25K miles complimentary maintenance) is included.
These are the terms for a new Toyota. If you're buying a used 2021 SIENNA HYBRID, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Toyota dealer for VIN-specific remaining warranty.
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 41 owner complaints for this specific year, here's what to check or ask about:
- ☐AIR BAGS: The contact owns a 2021 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 23V865000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The
Typically appears around 50K miles. Repair cost ~$500
- ☐VISIBILITY: THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS.
Typically appears around 50K miles. Repair cost ~$500
- ☐BRAKES: THIRD BRAKE LIGHT CONDITION POOR VISABILITY TO OPERATOR ( REAR WINDOW) WHEN BRAKE IS ACTIVATED IN LOW OR DARK LIGHTING CONDITION(S) THERE IS REFLECTION OFF GLASS AND REAR DEFROST ELEMENT(S) WHICH CAUSE LIMITED REAR VISABILITY OUT OF REAR WINDOW GLASS.
Typically appears around 50K miles. Repair cost ~$500
- ☐ENGINE: TL* THE CONTACT OWNS A 2021 TOYOTA SIENNA HYBRID. THE CONTACT STATED WHILE ATTEMPTING TO MAKE A RIGHT TURN WITH THE ACCELERATOR PEDAL DEPRESSED, THE VEHICLE FAILED TO RESPOND. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED THAT HE HAD EXPERIENCED THE FAILURE ON SEVERAL OCCAS
Typically appears around 50K miles. Repair cost ~$500
- ☐RECALLS: Verify all 2 recalls have been completed — free at any Toyota dealer
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Toyota SIENNA HYBRID — Year Comparison
How does 2021 compare to other years? Fewer complaints = more reliable.
NHTSA Safety Rating
At a Glance
- Complaints
- 41
- Recalls
- 2
- Fire reports
- 1
- Crash reports
- 0
- Injury reports
- 3
- Segment avg
- 74
Check a Specific VIN
See recalls for YOUR 2021 Toyota SIENNA HYBRID