The 2021–2026 Sienna uses the same key setup, so everything on this page applies to those years too. The full picture is on the Toyota Sienna key guide.
2025 Toyota Sienna: key facts
- Key type
- Smart / proximity key
- Push-to-start
- Yes
- Transponder chip
- 8A-BA (128-bit DST-AES smart)
- Programming
- OBD
- All keys lost
- We can originate new keys on site
Hybrid-only XL40 with push-button start standard; 8A-BA smart system. For all-keys-lost on 2020+ smart-key cars, US jobs generally require Toyota server codes with locksmith-credentialed (LSID/NASTF VSP) TIS access; add-a-key with a working fob is less restricted.
Same key system as the 2021–2026 Sienna
Toyota kept the Sienna's key system unchanged across 2021–2026, so everything about replacing a 2025 key — blanks, programming, and what happens if every key is lost — matches the rest of that run. The full year-by-year breakdown lives in our Toyota Sienna key guide.
What drives the price is the key type, whether you still have a working key, and where the car is parked. There's more on Toyota programming in general on our Toyota key page.
We cover all these cities
- Acton
- Agoura Hills
- Agua Dulce
- Alhambra
- Altadena
- Arcadia
- Arleta
- Artesia
- Athens
- Azusa
- Baldwin Park
- Bell
- Bell Gardens
- Bellflower
- Beverly Hills
- Bradbury
- Burbank
- Calabasas
- Camarillo
- Canoga Park
- Carson
- Cerritos
- Chatsworth
- City of Industry
- Claremont
- Commerce
- Compton
- Covina
- Cudahy
- Culver City
- Diamond Bar
- Downey
- Duarte
- East Los Angeles
- El Monte
- El Segundo
- Encino
- Fillmore
- Gardena
- Glendale
- Glendora
- Granada Hills
- Hacienda Heights
- Hawaiian Gardens
- Hawthorne
- Hermosa Beach
- Hidden Hills
- Huntington Park
- Inglewood
- Irwindale
- La Cañada Flintridge
- La Habra Heights
- La Mirada
- La Puente
- La Verne
- Ladera Heights
- Lake Balboa
- Lake View Terrace
- Lakewood
- Lancaster
- Lawndale
- Lomita
- Long Beach
- Los Angeles
- Lynwood
- Malibu
- Manhattan Beach
- Marina del Rey
- Maywood
- Mission Hills
- Monrovia
- Montebello
- Monterey Park
- Moorpark
- North Hills
- North Hollywood
- Northridge
- Norwalk
- Ojai
- Oxnard
- Pacoima
- Palmdale
- Palos Verdes Estates
- Panorama City
- Paramount
- Pasadena
- Pico Rivera
- Pomona
- Port Hueneme
- Porter Ranch
- Rancho Palos Verdes
- Redondo Beach
- Reseda
- Rolling Hills
- Rolling Hills Estates
- Rosemead
- Rowland Heights
- San Dimas
- San Fernando
- San Gabriel
- San Marino
- Santa Clarita
- Santa Fe Springs
- Santa Monica
- Santa Paula
- Sherman Oaks
- Sierra Madre
- Signal Hill
- Simi Valley
- South El Monte
- South Gate
- South Pasadena
- Stevenson Ranch
- Studio City
- Sun Valley
- Sylmar
- Tarzana
- Temple City
- Thousand Oaks
- Toluca Lake
- Topanga
- Torrance
- Valencia
- Valley Glen
- Valley Village
- Van Nuys
- Ventura
- Vernon
- View Park–Windsor Hills
- Walnut
- West Carson
- West Covina
- West Hills
- West Hollywood
- Westlake Village
- Westmont
- Whittier
- Willowbrook
- Winnetka
- Woodland Hills
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.