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2004 Toyota Sienna
Key Replacement - Save vs Dealer in Ventura County

Licensed & Insured | Mobile Key Experts

Available
2004 Toyota Sienna Transponder Key
Transponder Key

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

CA BSIS LICENSE LCO#6792
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min arrival
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2004 Toyota Sienna car key service at your door in Ventura CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2004 Toyota Sienna car key service at your door in Ventura CA
Key specialists
BSIS Licensed
Licensed by the California Bureau of Security
Fixed pricing
NASTF Certified
National Automotive Service Task Force approved
Fast mobile service
1,000+ Reviews
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805 Special
10% OFFCODE:EZ-805-2026

🔥 Certified pro service, 10% off 🔥

OEM keys & certified programming included
REDEEM (805) 790-8162

2004 Toyota Sienna
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Toyota key typeMost Popular
2004 Toyota Sienna Transponder Key
FCC IDPart #89785-08020ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Toyota Sienna Remote GQ43VT20T
FCC IDGQ43VT20TPart #89742-AE050Buttons6BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Toyota Sienna Remote GQ43VT20T
FCC IDGQ43VT20TPart #89742-AE030Buttons5BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Toyota Sienna Remote GQ43VT20T
FCC IDGQ43VT20TPart #89742-AE010Buttons3BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2004 Toyota Sienna MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
On-site 2004 Toyota Sienna smart key options from EZ Car Keyz Ventura CA
Skip the Dealer Markup
Professional key, honest rate
On-site 2004 Toyota Sienna smart key options from EZ Car Keyz Ventura CA
🔧 PRO TIP
The 2004 Sienna runs Toyota's Texas Instruments fixed-code transponder system with a 4D-67 chip embedded in the key head. Part number for the master key is 89785-08020. If you only have one working key, the car can still do an on-board add-key procedure through the ignition cycle method, which keeps the cost down. Lose that last key, though, and now it is a full immobilizer ECU reset through the OBD-II port, a longer job and a bigger bill. Get the spare made while you still have one.
Related services: Ignition Repair · Smart Key

Licensed Toyota Key Pro vs Dealership

Licensed, certified, and reviewed - compare the credentials

EZ Car Keyz
EZ Car Keyz
Dealership
Average Cost
✓ $$
✕ $$$$
Location
✓ We come to you
✕ You drive there
Wait Time
✓ 20-45 min
✕ 2-5 days
Same-Day
✓ Yes
✕ Rarely
All Keys Lost
✓ No problem
✕ Tow required
OEM Quality
✓ Yes
✓ Yes
EZ Car Keyz wins 5 out of 6
BSIS licensed with OEM quality guaranteed
Book Service (805) 790-8162

2004 Toyota Sienna Transponder Key Replacement - Fast, Affordable & Professional

Got a call from a guy out near Ventura River Preserve who had just flown back from a week-long trip. His 2004 Toyota Sienna was sitting in the airport cell phone lot, doors locked, and the key would not turn the engine over. He had one transponder key to his name and it had taken a beating in his luggage.

He called the dealer first. Earliest opening was Thursday. It was Tuesday. A tow from the lot was going to cost him on top of that, and he still had luggage at his feet.

I got there in about 40 minutes. Slim-jimmed the door, sat in the driver seat, and plugged my Autel IM608 into the OBD-II port under the dash. Read the immobilizer module and confirmed the 4D-67 chip in his existing key was still registered. The problem was simpler than he thought: the key blade had a slight bend near the tip from being tossed around, and it was not engaging the wafer tumblers deep enough to let the ignition cylinder rotate fully to start. Filed the high spot, cleaned the cylinder, and the key turned clean.

Then I cut and programmed a spare right there on the hood. 4D-67 chip, TOY43 blade, registered through the on-board procedure using his working master key.

He stood there holding two working keys like he had never owned a spare before. Drove home before dinner. His car never left that parking space.

Save vs the Dealer on Your Toyota Sienna Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

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BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
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Fully Insured
Liability & vehicle damage coverage
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Also serving: Casitas Springs · College · Downtown Ventura · East Ventura

Toyota Sienna Rapid Response, Done Right

Rapid response in the field

On-site 2004 Toyota Sienna car key programming in Ventura CA
Transponder Key | Rapid On-Site Service
2004 Toyota Sienna | Ventura County
On-site 2004 Toyota Sienna car key programming in Ventura CA
2004 Toyota Sienna Transponder Key
2004 Toyota Sienna
Transponder Key | Pro Grade Service
Estimated arrival time to Ventura
Proven Timing
Rapid Arrival
Available Today
Service location Ventura
Ventura
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Why Toyota Customers Trust Us

Licensed, certified, and proven

H
Hunter P.
Jul 2025
★★★★★

“I called over 40 locksmiths trying to get a key made for my Audi A6 and nobody could do it. Tim made it easy, fast, and affordable. He showed up with a smile and got the job done without any stress. Absolute wizard with keys.”

Google Review
E
Esteban S.
Dec 2025
★★★★★

“My Chevy key snapped while I was running errands in North Oxnard. He removed the broken piece from the ignition, cut a new blade, programmed the transponder, and tested everything thoroughly. The whole job was smooth and professional. Best automotive locksmith I have used.”

Google Review
K
Kelly C.
Dec 2024
★★★★★

“My car keys were stolen on a cold evening and Nick drove all the way out to Santa Barbara. He got into my car, made a new key, and charged $100 less than another company. Friendly, skilled, trustworthy, and genuinely caring. Nick is a hero.”

Yelp Review
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On-site 2004 Toyota Sienna key service review - EZ Car Keyz Ventura CA
“Real savings, real reviews.”
On-site 2004 Toyota Sienna key service review - EZ Car Keyz Ventura CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Toyota Sienna Mobile Service FAQ

Real costs, no dealer surprises

How long does a Toyota dealer take to replace a transponder key for a 2004 Sienna?
The actual programming of a 4D-67 transponder key takes about 10 to 15 minutes. That is the easy part. What owners report on forums is a different story. You write up a repair order, wait for a certified tech to become available, the tech walks to parts to pull the blank, they load up Techstream, and sometimes the dealer's server connection drags. After all of that, the car might go through their wash before they close the ticket. Forum posts from Sienna owners consistently describe one to two hours at the dealership even with an appointment. I handle the same job on site, usually in under 30 minutes.
What is a transponder key and how does it work in my 2004 Sienna?
Why would the dealer charge so much more than a mobile locksmith for this key?
Can I program a new 4D-67 transponder key myself on a 2004 Sienna?
My 2004 Sienna cranks but will not start. Could the transponder chip be the problem?
Questions? Call (805) 790-8162

Toyota Sienna Key Service Areas

Licensed and insured in every city

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
2004 Toyota Sienna car key service coverage in Ventura County CA
2004 Toyota Sienna car key service coverage in Ventura County CA
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