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Fast Response Locksmith

2004 Lexus GS
Zero-Key Mobile Replacement Service in Ventura County

No Working Key Required | We Handle It

Available
2004 Lexus GS Remote Head
Remote Head
2004 Lexus GS Transponder
Transponder

CA BSIS LICENSE LCO#6792
No Working Key? Easy No Dealer Tow Fresh Key On-Site
Fast Response15-25
min arrival
1,000+reviews
No key, no problem, watch us prove it2.7KFollowers
Stranded without a 2004 Lexus GS key? EZ Car Keyz Simi Valley CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Stranded without a 2004 Lexus GS key? EZ Car Keyz Simi Valley CA can help
Key specialists
On-Site Key Cutting
New key cut from vehicle codes, not from a copy
Fixed pricing
Half the Dealer Cost
Why pay $400+ when the same key is $149-$249?
Fast mobile service
On Your Schedule
Same-day appointments, 7 days a week
805 Special
10% OFFCODE:EZ-805-2026

🔥 Lost key panic? Save with this 🔥

No exclusions on emergency key calls
REDEEM (805) 790-8162

2004 Lexus GS
Key Options

All-keys-lost specialist - no dealer tow needed

Turn Key Ignition
Most popular Lexus key typeMost Popular
2004 Lexus GS Remote Head HYQ1512V
FCC IDHYQ1512VPart #89070-33470Buttons3BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
More affordable Lexus key optionCheaper
2004 Lexus GS Transponder Key TOY48BT4-PT
Key BlankTOY48BT4-PTPart #PE-TOY48BT4
✓ In Stock · Programmed On-Site
Emergency 2004 Lexus GS key fob made from scratch by EZ Car Keyz Simi Valley CA
Every Key Gone? Call Us
We start from zero, you drive home
Emergency 2004 Lexus GS key fob made from scratch by EZ Car Keyz Simi Valley CA
🔧 PRO TIP
The 2004 GS300 and GS430 both use the HYQ1512V remote head key with a Texas Instruments 4C-type transponder chip, not the later 4D or DST chips. The immobilizer ECU on these is the 89780-series unit tied to the smart key computer (89990-30011 on some trims). A dead CR1616 won't kill starting since the transponder is passive, but you lose lock, unlock, and trunk buttons. If the red security light on the dash blinks and the engine cranks but won't fire, that's the immobilizer rejecting the chip, not a battery issue.
Related services: Ignition Repair · Spare Keys

Same Key, Half the Price

The math speaks for itself

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
Save hundreds without sacrificing quality
Save Now (805) 790-8162

2004 Lexus GS Remote head key Replacement - Fast, Affordable & Professional

Got a call from a guy near Simi Valley Hospital with a 2004 Lexus GS430. All keys gone. He'd been quoted a tow to the Lexus dealer in Thousand Oaks plus a multi-day wait while they ordered a new key and reset the immobilizer. He was not excited about that plan.

I drove out to him. The GS was sitting in a parking lot, completely dead to the world. No fob, no way to disarm the immobilizer, engine cranks but won't catch. Classic all-keys-lost behavior on these second-gen GS cars.

On the 2004 GS, the immobilizer ECU talks to the transponder in the key head every time you turn the ignition. When there's no registered key left, the ECU won't release fuel or spark. I connected my ACDP to pull EEPROM data from the immobilizer module as a backup, then ran the AKL procedure through OBD. Once the old key data was wiped and the new HYQ1512V was registered, I cut the blade to the GS's locks right there on site.

He sat on a bench nearby and watched. When the engine turned over clean on the first try, he just nodded. Not a celebration, more like relief hitting him quietly.

The whole thing took about 45 minutes. No tow, no dealer wait, no coming back in three days. He drove home with two fresh keys for a fraction of what the dealer route would have run him.

2004 Lexus GS Key Rescue

No key, no problem. We cut and program a brand new key directly to your car's computer.

Get Help Now (805) 790-8162 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: East Simi Valley · Corriganville · Big Sky

We Bring the Tools to You

At your door, ready to work

All keys lost service for 2004 Lexus GS by EZ Car Keyz Simi Valley CA
Remote head key | Mobile Service, Done Here
2004 Lexus GS | Ventura County
All keys lost service for 2004 Lexus GS by EZ Car Keyz Simi Valley CA
2004 Lexus GS Remote head key
2004 Lexus GS
Remote head key | No Shop Needed
Estimated arrival time to Simi Valley
30-35 min
Your Spot
Available Today
Service location Simi Valley
Simi Valley
Mobile Zone
805 Area
Book Now (805) 790-8162

Emergency Saves, Real Reviews

Emergency saves, grateful customers

B
Bradley B.
May 2024
★★★★★

“Locked out on a weekend night and everyone else wanted $300+. EZ Car Keyz sent Roman late at night for much less. He worked for over an hour and did not give up until the door opened. They even made a new key on the spot.”

Yelp Review
C
Christopher H.
Sep 2025
★★★★★

“He arrived within 30 minutes and had everything finished in another 30 minutes for two cars. Everything was programmed and tested perfectly. Cheapest price in town and very honest service.”

Google Review
J
Joseph C.
Apr 2024
★★★★★

“I needed two keys made for my Honda Element. Friendly, fast, fair pricing, and far better than any other locksmith I have used in the area. Best service by far.”

Yelp Review
Watch us make keys from zero113KSubscribers
Locked out rescue review for 2004 Lexus GS - EZ Car Keyz Simi Valley CA
“Every rescue earns a review.”
Locked out rescue review for 2004 Lexus GS - EZ Car Keyz Simi Valley CA
5.0 out of 5 - Based on 1,000+ Google Reviews
Emergency Call (805) 790-8162

Lexus GS Price Questions, Straight Answers

Common pricing questions answered

What is the cheapest way to replace my 2004 Lexus GS key?
Call a mobile locksmith before the dealer. Lexus dealers typically quote the key blank (89070-33470), a separate programming fee, and a cutting fee, all as individual line items. Then you're towing the car to them or paying for that too. With me, the HYQ1512V remote head key, cutting, and programming are one job, done where the car sits. No tow, no parts counter markup, no appointment two weeks out. Owners who call me first save a good chunk compared to the dealer path every time.
How much more does all-keys-lost cost compared to getting a spare made?
Do aftermarket keys work on the 2004 Lexus GS?
My 2004 GS key turns but the engine cranks and won't start. Is that the immobilizer?
Can I program a new key to my 2004 Lexus GS myself?
Questions? Call (805) 790-8162

Lexus GS Key Service Areas

Verified and rated across the county

📍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
Lockout rescue coverage for 2004 Lexus GS in Ventura County CA
Lockout rescue coverage for 2004 Lexus GS in Ventura County CA
Background checked and bonded in Ventura County

Licensed and insured across all service areas

Talk To A Pro (805) 790-8162
Watch & Learn
Lexus GS car key replacement video
See What 113K+ Already Know

2004 Lexus GS Key Rescue

No key, no problem. We cut and program a brand new key directly to your car's computer.

Locked out of your 2004 Lexus GS? Get help from EZ Car Keyz Simi Valley CA
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
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Ventura County