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2004 Lexus GS
Key Replacement - Save vs Dealer in San Diego

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Available
2004 Lexus GS Remote Head Key
Remote Head Key

With 100+ verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.

CA BSIS LICENSE LCO#6792
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Fast Response15-25
min arrival
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Stranded without a 2004 Lexus GS key? EZ Car Keyz El Cajon CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Stranded without a 2004 Lexus GS key? EZ Car Keyz El Cajon CA can help
Key specialists
Google Guaranteed
Passed Google's screening and verification process
Fixed pricing
Fully Insured
Liability coverage and background-checked technicians
Fast mobile service
8+ Years in Business
Over 10,000 keys made across the region
619 Special
10% OFFCODE:EZ-619-2026

🔥 Trusted by thousands, save today 🔥

Covers all NASTF-certified key work
REDEEM (619) 876-1271

2004 Lexus GS
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key
Most popular Lexus key typeMost Popular
2004 Lexus GS Remote Head Key HYQ1512V
FCC IDHYQ1512VPart #89070-33470Buttons3BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2004 Lexus GS Transponder Key
FCC IDPart #PE-TOY48BT4ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Emergency 2004 Lexus GS key fob made from scratch by EZ Car Keyz El Cajon CA
Skip the Dealer Markup
Professional key, honest rate
Emergency 2004 Lexus GS key fob made from scratch by EZ Car Keyz El Cajon CA
🔧 PRO TIP
The 2004 Lexus GS uses a remote head key, meaning the transponder chip and the remote buttons are built into the same unit that goes into the ignition cylinder. Lose it or kill it, and you lose both functions at once. The fob runs on a CR1616, which is a thinner cell than the CR1632 a lot of people grab by mistake at the pharmacy. Wrong battery size seated in there can look like a transponder fault or dead remote when the real problem is just a slightly loose cell making bad contact. Before assuming the fob is dead, crack it open and check that the battery is seated flat against the contacts. Also: these remote head keys sit in pockets and purses for 20 years and the rubber buttons crack. A cracked button housing can let debris hit the circuit board and kill the remote signal while the transponder still works fine, or vice versa. Two different failure modes, same key.
Related services: Ignition Repair · Smart Key

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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
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2004 Lexus GS Remote Head Key Replacement - Fast, Affordable & Professional

Out in Fletcher Hills, near one of those side streets that feeds into the hills above El Cajon, I got a call from a guy who had been living with one key for his 2004 Lexus GS for about eight months. His spare had stopped working years ago and he just never dealt with it. The one remaining key would start the car fine, but the remote buttons were dead. He was manually unlocking every time, figured the battery was shot, bought a replacement, and it still didn't work.

When I got there, he handed me the key and I could see the problem before I even tested it. The rubber button cover had a small tear along the edge, probably from years of keychain pressure, and moisture had gotten into the housing. The circuit board contact for the lock button had a faint green tint. Corrosion from the inside.

I explained what I was looking at. He hadn't noticed the tear at all. We talked through the options: attempt a board clean, or just cut and program a fresh remote head key. Given that the housing was already compromised and this was his only working key, he wanted a new one so he'd have a reliable backup too.

I cut the replacement key blade to match his ignition, programmed the transponder to the vehicle's immobilizer, and synced the remote to the receiver. Tested all three buttons, tested the ignition start, tested it again after a full door lock and unlock cycle.

He mentioned the dealer had quoted him a number for the job that made him put it off for months. Doing it in his driveway cost him a fraction of that. He left with two working keys for the first time in years.

Save vs the Dealer on Your Lexus GS 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
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
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Also serving: Bostonia · Crest · Downtown El Cajon · Fletcher Hills

Lexus GS Rapid Response, Done Right

Rapid response in the field

All keys lost service for 2004 Lexus GS by EZ Car Keyz El Cajon CA
Remote Head Key | Rapid On-Site Service
2004 Lexus GS | San Diego
All keys lost service for 2004 Lexus GS by EZ Car Keyz El Cajon CA
2004 Lexus GS Remote Head Key
2004 Lexus GS
Remote Head Key | Pro Grade Service
Estimated arrival time to El Cajon
Proven Timing
Rapid Arrival
Available Today
Service location El Cajon
El Cajon
Insured Service
619 Area
Same-Day Keys (619) 876-1271

Licensed, Certified, and Reviewed

Trusted and verified by real customers

T
Tommy M.
Dec 2023
★★★★★

“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”

Yelp Review
A
Alexx C.
Dec 2025
★★★★★

“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”

Google Review
M
Mark F.
Feb 2024
★★★★★

“Needed a spare car key made and chose EZ Car Keyz based on their reviews. The reviews were right. They gave me the best price, responded quickly to all my questions, came to my workplace, cut the keys on site, and finished fast.”

Yelp Review
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Locked out rescue review for 2004 Lexus GS - EZ Car Keyz El Cajon CA
“Real savings, real reviews.”
Locked out rescue review for 2004 Lexus GS - EZ Car Keyz El Cajon CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Lexus GS Mobile Service FAQ

Real costs, no dealer surprises

Do I need to bring my 2004 Lexus GS somewhere for key replacement?
Not with us. EZ Car Keyz comes to you, whether that's your driveway, your workplace, or a parking lot in the Fletcher Hills area of El Cajon. The 2004 GS remote head key requires cutting and immobilizer programming, but that's all done on site with the equipment in my van. Dealers will want you to either drive in or, if you're locked out with no working key, tow the car to their service bay and then wait on parts. We carry what this vehicle needs and handle the whole job next to your car.
How does mobile key replacement work for this car?
What do I need to have ready when you arrive?
I have a working key but I bought a replacement fob online. Can I just program it myself?
My 2004 GS starts fine but the remote buttons stopped working suddenly. What usually causes that?
Questions? Call (619) 876-1271

Lexus GS Key Service Areas

Background checked and bonded everywhere

📍San Diego County
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Lockout rescue coverage for 2004 Lexus GS in San Diego County CA
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