NASTF VSP · ALOA Trained · Lexus Smart Keys

Lexus Locksmith in Atlanta, GA: Smart Keys Added and Programmed at the Car

ES 350, RX 350, GX 460, IS and LS 500 Smart Keys, emergency blades and remotes, handled in your driveway, a parking deck or the office lot, day or night. Every fob gone? Tell the dispatcher the model year, and the route for that Lexus gets settled during the call.

A hand holds a two-button Lexus smart key below the brown leather steering wheel of a push-button Lexus, the driver's door open onto a parking lot

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Lexus Locksmith, Metro Atlanta

Lexus keys are a programming job first, and a cutting job second

4Keys Locksmith programs Lexus Smart Keys at the car anywhere in Metro Atlanta, GA, as a mobile Lexus locksmith that is NASTF VSP authorized, ALOA-trained, insured by The Hartford, and open 24/7. Behind the name is 4Keys Locksmith LLC, registered with the Georgia Secretary of State, sending its vans out of Brookhaven.

From the late 2000s on, key vendors list Smart Keys, the Lexus proximity fob, for the ES, RX, GX, IS and LS models on this page, so the real work sits in the electronics: which Smart Key generation the car runs, which of Lexus's dealer bulletins covers that year, and whether a working fob is still in your hand. The emergency blade inside the fob is cut afterwards, to the door lock.

Everything a Lexus owner might need is part of the service: lockouts, a spare fob, a key made when every fob is gone, a fob you bought yourself, a failed fob replaced, broken key and ignition work, module registration, and keys for company cars. You hear the price over the phone ahead of any dispatch, and the published rates are listed on the pricing page.

The Lexus Smart Key System

Lexus Smart Key generations, the Lexus reset bulletins and the emergency blade

Lexus parts sit in Toyota's family, but the Toyota key rules do not carry over: Toyota's reset bulletin T-SB-0057-18 lists no Lexus model, and Lexus files its own key bulletins. The Toyota chip letters are explained on the Toyota locksmith page; what follows is the Lexus side.

Before the Smart Key, the RX 350 of 2007 to 2009 used a bladed key with a Texas Instruments 4D68 chip, cut on the LXP90 blade, paired with a separate three-button remote (FCC ID HYQ12BBT, 315 MHz). Lexus's own bulletin L-SB-0007-13, its Smart Key Specifications, lists Smart Key and Smart Entry systems on the ES 350 and IS 250 from 2008 to 2013, the GX 460 from 2010 to 2013 and the RX 350 from 2009 to 2013, transmitting at 312.15 or 314.35 MHz.

The first Lexus smart keys carry an 80-bit chip, which vendors label "Texas ID 4D 60 80 bit". The HYQ14AAB fob covers the ES 350 from 2007 to 2011 and the IS 250 from 2006 to 2011, in two circuit-board versions split at 2009; the HYQ14ACX covers the RX 350 from 2010 to 2015 and the GX 460 from 2010. Both run on a CR1632 coin cell. The 128-bit generation (Texas "H-8A") came next: HYQ14FBA for the ES 350 2013 to 2018, the IS 250 2014 and 2015 and the IS 200t 2016 and 2017; HYQ14FBB for the RX 350 from 2016; HYQ14FLB for the RX 350 2020 to 2022, with 2020 and 2021 also listed under the FBB, so the FCC ID on the fob decides; HYQ14FLD at 434 MHz for the RX 350 2023 to 2025; and HYQ14FBF for the LS 500 2018 to 2021. All of these take a CR2032. Key vendors state that the FBB and FBF fobs have no on-board programming procedure: professional equipment does it.

Lexus sets out its dealer procedures for registering and erasing keys in two bulletins. L-SB-0025-14, dated July 7, 2014, covers model years 1997 to 2015, including the ES 350, GX 460, IS 250 and RX 350. Its reset opens the immobilizer to new keys once every master key is gone, and it wipes out each key the car had accepted until then; the dealer's Techstream produces a seed number, Lexus's TIS returns a pass-code, and dealer management must approve each request. It adds a caution: Techstream cannot reset certain early immobilizers housed in the engine computer (ECM).

L-SB-0014-18, the Smart Key Immobilizer Reset and Add/Remove Key bulletin, covers the ES 350 from 2019 to 2021 and the LS 500 from 2018 to 2021, and it is stricter. A key erased by a Smart Code Reset cannot be used again on any vehicle, a key taken off with the add/remove procedure can never be reused, and the Undesignated Key Permanent Erasure utility removes only the keys that are not present. Vendors sell the LS 500 fob as non-reusable, while the earlier Lexus smart keys are sold as reusable once the immobilizer is reset. Both bulletins describe Lexus's own dealer procedures; for your car, the dispatcher reads the exact model year and the fobs you hold before saying how the visit runs.

The Lexus Smart Keys listed here carry an emergency blade for the door. The TOY48 inserts come in a 40K series (69515-30300) for the ES 350 of 2007 to 2009 and the RX 350 of 2010 to 2015, whose emergency key vendors also call LX40, and an 80K series (69515-50260) for the IS 250 of 2008 to 2012. From 2018 Lexus moved to a high-security emergency blade (69515-33150 and 69515-50310) on the ES 350 and GX 460 of 2019 to 2023, the LS 500 of 2018 to 2023 and the RX 350 of 2023 to 2025. NHTSA's recall records, scanned for these Lexus models, show no campaign touching the ignition, the keys or the immobilizer. 4Keys Locksmith reaches the security access these cars require under its NASTF VSP authorization, and the dealer software it runs on them is GTS+, Global Techstream Plus, held on a 4Keys subscription and paired with original (OEM) Lexus Smart Keys.

Before a Lexus fob is added: put every fob you own in the car

On a 2019 to 2021 ES 350 or a 2018 to 2021 LS 500, Lexus's own bulletin describes an erasure utility that removes the keys not present, and a key removed from those cars can never be reused. So gather the spare from the drawer, the one with the cracked case and the one that stopped working, and keep them at the car. Read the FCC ID printed on the back of any fob you have; Lexus changed fobs inside a single model run, and that number tells the technician which one to bring. When the technician rings you back before driving out, a photo of the fob, front and back, may be requested.

Lexus Coverage

ES, RX, GX, IS and LS: the Lexus key behind each year band

Years exactly as the key vendors and Lexus's own bulletins print them. Where two listings overlap, the FCC ID on your fob settles it. With every fob lost, the dispatcher confirms the route for your model year on the first call.

ModelYears listedKey, cell and bulletinLexus service at the car
RX 3502007-2009Bladed 4D68 chip key (LXP90 blade) with separate HYQ12BBT remote, 315 MHzChip key cut and programmed, remote paired, lockout
RX 3502010-201580-bit Smart Key HYQ14ACX, CR1632; LX40 emergency key; L-SB-0025-14Smart Key added, all fobs lost, emergency blade cut
RX 3502016-2019128-bit Smart Key HYQ14FBB, CR2032Smart Key programmed with equipment, spare fob
RX 3502020-2022128-bit Smart Key HYQ14FLB (2020-2021 also listed as FBB), CR2032Fob matched by FCC ID, then programmed
RX 3502023-2025434 MHz Smart Key HYQ14FLD, CR2032; high-security emergency bladeSmart Key for a modern RX, blade cut to the door
ES 3502007-201180-bit Smart Key HYQ14AAB (boards 0140 and 3370), CR1632; L-SB-0025-14Spare fob, all fobs lost, emergency blade
ES 3502013-2018128-bit Smart Key HYQ14FBA, CR2032; L-SB-0025-14 through 2015Smart Key added or made new, lockout
ES 3502019-2021Smart Key under L-SB-0014-18; high-security emergency bladeEvery fob gathered first, then keys added or erased
GX 4602010-201880-bit Smart Key HYQ14ACX, CR1632; L-SB-0025-14 through 2015Spare fob, all fobs lost, lockout
GX 4602019-2023High-security emergency blade; fob read from its FCC IDSmart Key programming, blade cut
IS 2502006-201180-bit Smart Key HYQ14AAB, CR1632; 80K emergency insert 2008-2012Spare fob, all fobs lost, broken blade replaced
IS 2502014-2015128-bit Smart Key HYQ14FBA, CR2032; L-SB-0025-14Smart Key added or made new
IS 200t2016-2017128-bit Smart Key HYQ14FBA, CR2032Smart Key programming, spare or all fobs lost
LS 5002018-2021128-bit Smart Key HYQ14FBF sold non-reusable, CR2032; L-SB-0014-18; high-security bladeNew fob programmed with every existing fob present

Sources: Lexus L-SB-0007-13, L-SB-0025-14 and L-SB-0014-18 (filed with NHTSA), key vendor fitment pages and key-blank lists. For a Lexus model or year not shown here, the VIN read on the call gives the answer.

Customer Record

What Our Customers Actually Said

Every review below is 5 stars, published word for word. Showing 4 of 97.

4.8
97 Google reviews
13 in Spanish

David was prompt in his communications and very professional. Definitely will use this company if needed in the future!

Tiana B
Tech David14 weeks ago

Great experience! Responsive & fast!

Catherine Knight16 weeks ago

David, the owner of 4Keys Locksmith was not only professional, but a solid individual that knows his craft and was able to program my Porsche in a very timely manner. It’s refreshing to meet young professionals that take pride in their craft.

Steven Dunlap11 weeks ago
Great jobEdwin Pena E
Every Lexus Service

Lexus work at the car, service by service

What changes each job on a Lexus, and what to have ready when the technician arrives.

Locked out of a Lexus

A fob left on the seat or in the cargo area of a push-button Lexus stays where it is until the door is opened with entry tools; nothing about the key changes. See car lockout service, and trunk lockout when the fob is shut in the trunk.

A spare Smart Key

With one working fob, a second one is programmed to the car, and the hidden blade inside it is cut to match the driver's lock. On the ES 350 and LS 500 years covered by L-SB-0014-18, Lexus says a key removed from the car can never be reused, so keep every fob you own at the car. More on spare and duplicate keys.

Every fob lost

The immobilizer is made to accept a brand-new fob with nothing to copy from, and the missing fobs are erased. The route for your Lexus year is settled by the dispatcher during that call, before the van is sent; the process is set out on all keys lost.

A fob you bought, or one that failed

A fob bought online goes onto the car once its frequency, part number and FCC ID line up with that Lexus, as the guide to fobs bought online explains; on the LS 500, only a new fob qualifies, since vendors sell that key as non-reusable. A fob with a failure history gives way to a brand-new one, which the 4Keys warranty covers; the FAQ below explains when re-registering is enough. A weak cell is the first suspect: see key fob not working.

Module and telematics registration

A Lexus technical tip says a replaced data communication module (DCM) must be registered to the immobilizer on the ES 350 and GX 460 of 2015 to 2018, the RX 350 of 2016 to 2018, the IS 200t, the 2015 IS 250 and the 2018 LS 500. Name the module that was replaced; see ECU and module programming.

Broken blades and ignition trouble

An emergency blade snapped in a door lock is extracted and a new one cut (how a broken key comes out). On the bladed RX 350 of 2007 to 2009, a key that will not turn is diagnosed at the cylinder, as key will not turn describes.

Company cars and fleets

Executive and pool cars can be keyed back to back in the company lot when the VINs are sent first; fleet key programming covers how that visit runs.

Dealer-level programming, no dealer trip

Keys for modern cars like these are programmed with professional equipment, and dealer-level security access is reached at the car under NASTF VSP; whether a locksmith has dealer software explains the access in plain terms.
Where the Van Goes

A Lexus in a deck, a driveway or a gated lot, and the locks at that address too

The workshop is the van, as a mobile locksmith with no shop works: it leaves Brookhaven for a car anywhere in Metro Atlanta, with the arrival time given on the call. A Lexus is worked on where it sits, whether that is a home driveway, an apartment lot behind a gate, a workplace lot or a level of a parking deck; give the deck name, the level and the row.

Some Georgia pages take a Lexus topic further. The Austell page explains a push-to-start car that does not see its fob, the Powder Springs page a fob that lost its programming or broke, and the Buckhead page what a NASTF VSP locksmith reaches on European keys. For offices, Sandy Springs covers multi-tenant buildings and Dunwoody master key systems.

Those same vans carry lock hardware. A house can be opened after a lockout, rekeyed after a move, or fitted with a new deadbolt or a smart lock (residential locksmith service, Georgia residential locksmith); a business can be rekeyed after staff changes, master keyed, or given access control and exit devices (commercial locksmith service, Georgia commercial locksmith).

Calls are taken in English and Spanish. Any document a Lexus key case needs is asked for while you are on the phone, and the credentials behind the work are described under ALOA training.

FAQ - Lexus Smart Key Problems, Answered

Re-register or replace, Toyota versus Lexus rules, old fobs after a reset, the metal key, coin cells, FCC IDs, the DCM and doing it yourself.

It depends on why it stopped. Start with the coin cell: a CR1632 in the older HYQ14AAB and HYQ14ACX fobs, a CR2032 in the 128-bit ones. If a fresh cell changes nothing, the technician checks whether the fob itself is sound. A fob that is physically fine but has lost its pairing with the car is re-registered, and you keep it. A fob with a failure history, a cracked board or water inside is replaced with a new fob, and that new fob is covered by the 4Keys warranty. On the 2019 to 2021 ES 350 and the 2018 to 2021 LS 500 there is one more rule: Lexus bulletin L-SB-0014-18 says a key erased from the car can never be reused, so an erased fob on those cars is replaced with a new one rather than registered again.
No. Toyota's T-SB-0057-18 lists no Lexus model. Lexus publishes its own: L-SB-0025-14 for model years 1997 to 2015, and L-SB-0014-18 for the 2019 to 2021 ES 350 and the 2018 to 2021 LS 500.
If the immobilizer was reset to register the new keys, every key the car knew was erased; Lexus bulletin L-SB-0025-14 says so for model years 1997 to 2015. On the 2019 to 2021 ES 350 and the 2018 to 2021 LS 500, L-SB-0014-18 goes further: an erased fob cannot be used again on any vehicle. That is why it pays to have every fob at the car when a key is added.
If no working fob is left, yes. The emergency blade opens the door, but the immobilizer needs a registered Smart Key to start the engine. Tell the dispatcher the model year and the route is confirmed before the van leaves.
Because Lexus changed fobs inside a model run. The RX 350 alone went from the HYQ14ACX to the HYQ14FBB in 2016, to the HYQ14FLB, and to the 434 MHz HYQ14FLD for 2023, and vendors list the 2020 and 2021 RX under two IDs. The number printed on the case tells the technician exactly which fob to bring.
On several years, yes. A Lexus technical tip says the new data communication module must be registered to the immobilizer on the ES 350 and GX 460 of 2015 to 2018, the RX 350 of 2016 to 2018, the IS 200t of 2016 and 2017, the 2015 IS 250 and the 2018 LS 500. That registration is done at the car.
Not on the later fobs. Key vendors state that the HYQ14FBB and HYQ14FBF Smart Keys have no on-board programming procedure and need professional equipment, which the technician brings to the car under NASTF VSP access.
No ignition, key or immobilizer recall turned up in a scan of NHTSA records for the ES 350, RX 350, GX 460, IS 250, IS 200t or LS 500. Any VIN can be checked on the NHTSA recall lookup.
Lexus · Day or Night

Every fob you own, the FCC ID on its back, and one phone call.

Give the model, the year and how many fobs still work. The price is set on that call, before a van leaves Brookhaven, and a Lexus with no fob left has its route confirmed for its year in the same conversation.

The price depends on the job and the components it needs; you get the exact total on the phone before the technician is sent. See our reference prices.

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