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2012 Lexus IS
Key Replacement - Save vs Dealer in San Diego

Licensed, Certified, and Proven

Available
2012 Lexus IS Smart Key
Smart 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.

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Certified 2012 Lexus IS key replacement info from EZ Car Keyz Fallbrook CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Certified 2012 Lexus IS key replacement info from EZ Car Keyz Fallbrook 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
100+ Reviews
Five-star rated on Google, Yelp, and BBB A+
619 Special
10% OFFCODE:EZ-619-2026

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Professional service at a better price
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2012 Lexus IS
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Lexus key typeMost Popular
2012 Lexus IS Smart Key HYQ14AAB
FCC IDHYQ14AABPart #271451-0140Buttons4BatteryCR1632Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2012 Lexus IS Smart Key HYQ14AEM
FCC IDHYQ14AEMPart #89904-30C60Buttons4BatteryCR1632Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2012 Lexus IS Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
OEM quality 2012 Lexus IS key fob from EZ Car Keyz Fallbrook CA
Skip the Dealer Markup
Professional key, honest rate
OEM quality 2012 Lexus IS key fob from EZ Car Keyz Fallbrook CA
🔧 PRO TIP
The 2012 Lexus IS smart key fob runs on a CR1632. That battery size trips people up because it is thinner than the CR2032 you find in most Toyota fobs. If someone shoves a CR2032 in there trying to make it work, the contacts bend and you end up with an intermittent connection that looks like a dead key or a programming issue. Before anything else on these, open the fob, check that the correct CR1632 is seated flat, and look at the contact clips. The fob itself is Lexus-specific and does not cross over to Toyota even though the two brands share a lot of hardware. Do not let a parts counter person talk you into a Toyota fob thinking it will save you money.
Related services: Ignition Repair · Smart Key

Proven Pro vs Dealer Markup

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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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2012 Lexus IS Smart Key Replacement - Fast, Affordable & Professional

Out in Bonsall, just off the back roads near the San Luis Rey River, I got a call from a guy who had been searching a marina parking area for about half an hour. His only fob for his 2012 Lexus IS was gone. He had retraced his steps from the dock to the car twice and came up with nothing. He figured his only option was a tow to the dealer and a wait measured in days. I told him I could be there that afternoon.

When I pulled up, the IS was sitting in the lot, locked up tight. I got the door open with a mechanical entry approach and decoded the lock to figure out the exact cut the key needed. From there I cut a new emergency insert blade to match the door.

Then I connected through the OBD port and ran the all-keys-lost procedure. That process has a timed sequence built into it, so you cannot rush it. It clears all previously registered key data from the immobilizer and opens a window to register the new fob. Once that window opens, you complete the registration and test every function: door locks, start button, the whole sequence. His car started right there in the same lot where it had been sitting dead.

He had already called the dealer while he was waiting for me and gotten a quote that included the key, programming, and a tow since the car was not drivable. My total was a fraction of that, and he did not lose the car for multiple days. Lot to running in about 50 minutes.

Save vs the Dealer on Your Lexus IS 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
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Also serving: Bonsall · De Luz · Downtown Fallbrook · Live Oak Park Area

Lexus IS Rapid Response, Done Right

Rapid response in the field

Licensed locksmith replacing 2012 Lexus IS key in Fallbrook CA
Smart Key | Rapid On-Site Service
2012 Lexus IS | San Diego
Licensed locksmith replacing 2012 Lexus IS key in Fallbrook CA
2012 Lexus IS Smart Key
2012 Lexus IS
Smart Key | Pro Grade Service
Estimated arrival time to Fallbrook
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Rapid Arrival
Available Today
Service location Fallbrook
Fallbrook
Insured Service
619 Area
Same-Day Keys (619) 876-1271

Real Lexus Trust, Real Reviews

What certified service looks like in reviews

K
Kane G.
Apr 2024
★★★★★

“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”

Yelp Review
N
Natasha S.
Sep 2025
★★★★★

“Very professional and extremely affordable. The price was literally about three times cheaper than what my dealership quoted me. Fast service and no stress at all. Highly recommend.”

Google Review
A
A. G.
Jun 2025
★★★★★

“A friend lost my Lexus key and he was able to program and cut a brand new one within 20 minutes. Arrived within about 40 minutes and was friendly, efficient, and quick.”

Google Review
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5-star review of 2012 Lexus IS key service by EZ Car Keyz Fallbrook CA
“Real savings, real reviews.”
5-star review of 2012 Lexus IS key service by EZ Car Keyz Fallbrook CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Lexus IS Mobile Service FAQ

Real costs, no dealer surprises

Why is Lexus key replacement so expensive?
It is a layered cost. The fob itself has a programmed transponder chip that has to be cryptographically paired to your specific vehicle. That is not a key you duplicate at a hardware store. It also carries the remote functions, lock, unlock, and trunk release, which all need to be registered through the vehicle's security system. On top of the hardware, programming a smart key requires a professional-grade diagnostic tool and, on this generation of IS, actual procedural steps with timed sequences you cannot skip. Dealers charge for the part, the labor, and sometimes a separate programming fee listed as its own line item. The technology cost is real. The markup on top of it does not have to land on you at full dealer rate.
What exactly is a smart key and how does it work on the 2012 IS?
How does your price compare to going to the Lexus dealer?
I have a spare fob I bought online. Can I program it myself or does it need a tech?
My 2012 IS starts fine but the door handle touch unlock has stopped working. Is the fob the problem?
Questions? Call (619) 876-1271

Lexus IS Key Service Areas

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📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Licensed 2012 Lexus IS locksmith service area in San Diego County CA
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Lexus IS Key by Certified Technicians

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Trusted 2012 Lexus IS locksmith service by EZ Car Keyz Fallbrook CA
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