VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
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Fast Response Locksmith

2003 Lexus LS
Key Replacement - Save vs Dealer in Ventura County

We Drive to You | Stay Where You Are

Available
2003 Lexus LS Remote Head Key
Remote Head Key

Our fully-equipped mobile unit comes directly to your home, office, or wherever you are. No towing, no waiting rooms, no rearranging your day. We handle everything on-site.

CA BSIS LICENSE LCO#6792
Mobile Locksmith Park It, We Come Zero Hassle
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2003 Lexus LS key replacement cost - EZ Car Keyz Montecito CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2003 Lexus LS key replacement cost - EZ Car Keyz Montecito CA
Key specialists
Mobile Service
Our van carries everything - no shop visit needed
Fixed pricing
On Your Schedule
Same-day appointments, 7 days a week
Fast mobile service
One-Visit Solution
Key cut and programmed in a single visit
805 Special
10% OFFCODE:EZ-805-2026

🔥 Your spot, your key, your savings 🔥

Savings delivered right to your door
REDEEM (805) 790-8162

2003 Lexus LS
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key
Most popular Lexus key typeMost Popular
2003 Lexus LS Remote Head Key HYQ12BBK
FCC IDHYQ12BBKPart #89070-50660Buttons3BatteryCR1616Frequency314 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2003 Lexus LS Transponder Key
FCC IDPart #TR60-PTButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Budget 2003 Lexus LS key fob options from EZ Car Keyz Montecito CA
Skip the Dealer Markup
Professional key, honest rate
Budget 2003 Lexus LS key fob options from EZ Car Keyz Montecito CA
🔧 PRO TIP
The 2003 LS 430 runs Toyota's older Texas Instruments 4C-based transponder system on the remote head key (HYQ12BBK), not the later 4D or smart key setup some people assume. All-keys-lost on these is one of the harder legacy Lexus jobs because the immobilizer ECU (part number 89784-50020 on many LS 430s) needs to be read and initialized before a new key will register. If you still have one working key, the add-key process is way simpler and cheaper. Don't wait until you lose the last one.
Related services: Ignition Repair · Smart Key

On-Site vs In-Shop

Mobile vs in-shop - see the difference

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
Your driveway beats their waiting room
Book Service (805) 790-8162

2003 Lexus LS Remote Head Key Replacement - Fast, Affordable & Professional

A woman at the Pilates studio near Upper Village in Montecito had been fighting her 2003 Lexus LS ignition for about a month. Some mornings the key turned clean. Some mornings she sat in the lot for five minutes wiggling it, both hands on the wheel, trying different angles.

The dealer told her the whole ignition assembly needed replacing. She was about to book it when a friend told her to call me first.

I drove out and checked the TOY48 cylinder. The issue was three worn wafers, not a dead lock. The brass had rounded off just enough that the key couldn't set them cleanly every time. So I decoded the lock, swapped the bad wafers, and cut a fresh TOY48 blade on a new HYQ12BBK shell. Programmed the transponder and synced the remote through OBD. Took maybe 40 minutes.

I showed her the old wafers side by side with the new ones so she could see the wear pattern. She held one up and said "that's it?" Like she expected something more dramatic after a month of fighting the ignition every morning.

Her ignition turns smooth now. She kept both keys this time. The dealer route would have cost a good chunk more and included parts she never actually needed.

Save vs the Dealer on Your Lexus LS Key

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

Get Pricing (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: Birnam Wood · Butterfly Beach · Coast Village · Cold Spring

Lexus LS Rapid Response, Done Right

Rapid response in the field

Affordable 2003 Lexus LS key replacement by EZ Car Keyz in Montecito CA
Remote Head Key | Rapid On-Site Service
2003 Lexus LS | Ventura County
Affordable 2003 Lexus LS key replacement by EZ Car Keyz in Montecito CA
2003 Lexus LS Remote Head Key
2003 Lexus LS
Remote Head Key | Made at Your Door
Estimated arrival time to Montecito
We Come to You
Rapid Arrival
Available Today
Service location Montecito
Montecito
We Come Here
805 Area
Same-Day Keys (805) 790-8162

Why Lexus Customers Skip the Dealer

Real reviews from real locations

T
T Klein
May 2020
★★★★★

“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”

Google Review
W
Winter K.
Dec 2025
★★★★★

“I lost my key and called EZ Car Keyz. Marco was great. He arrived quickly, explained everything clearly, and kept me informed throughout the entire process. The service was fast, professional, and fairly priced.”

Google 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
Watch real savings, real jobs62KFollowers
Customer review showing savings on 2003 Lexus LS key by EZ Car Keyz Montecito CA
“Real savings, real reviews.”
Customer review showing savings on 2003 Lexus LS key by EZ Car Keyz Montecito CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Lexus LS Mobile Service FAQ

Real costs, no dealer surprises

Do I need to bring my 2003 Lexus LS somewhere for key replacement?
No. I come to you. Wherever the car is sitting in Upper Village, Montecito, that's where the work happens. I carry the HYQ12BBK blanks, cutting equipment, and programming tools in the van. Lexus dealers need you to either drive in on a working key or tow the car to their bay, and on an LS 430 that's been sitting with no keys, that tow bill adds up before they even touch the ignition. I handle everything on site, start to finish.
How does the mobile key replacement process work on my LS 430?
What do I need to have ready when you arrive?
My LS 430 key turns but the engine cranks and won't start. Is that the immobilizer?
Can I program a new key to my 2003 LS 430 myself?
Questions? Call (805) 790-8162

Lexus LS Key Service Areas

Full coverage, zero hassle

📍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
Affordable 2003 Lexus LS locksmith service area in Ventura County CA
Affordable 2003 Lexus LS locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

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Filmed on Location
Lexus LS car key replacement video
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Your Lexus LS Key, Your Location

Wherever your car is parked, that's where we work. Home, office, parking lot, roadside.

Best price 2003 Lexus LS car key replacement by EZ Car Keyz Montecito CA
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Ventura County