Lexus LS key replacement in Los Angeles

Lexus LS keys by year

What do you need when an LS key goes missing or stops working?

The Lexus LS has gone through four distinct key eras, and the right answer for an owner depends almost entirely on which one the car belongs to. A 2000 LS400 uses a transponder key on a long blade. A 2003 LS430 uses a different transponder on a short high-security blade. From 2007 the car is push-button start with a smart fob. From 2018 it moves to a newer encrypted chip, and the rules around lost keys get tighter.

That is why we do not quote an LS key from the badge alone. The model year, the stamp on the key or fob, and, where the reference data is thin, the VIN decide what goes into the car. The year-by-year table on this page shows what we have on record for each model year. The text around it explains what those entries mean for you in practice.

Where our data is confirmed, we say so. Where it is unverified or the catalogs disagree, we say that too, and we confirm the exact setup by VIN before cutting or programming anything. If you are comparing other models, the Lexus key replacement hub and the wider car key service overview cover the rest of the lineup.

The 2000 LS400: a transponder on a long blade

The 2000 model year is the last LS400, the tail end of the XF20 generation that ran 1995 to 2000. It is the only year of that generation our data covers, so if you have an earlier LS400, call us and we will go through it with you instead of guessing from this page.

Industry references list a Texas 4C transponder chip on the long TOY40 blade for this car. Catalog coverage for the LS400 is thin, though, so we treat the chip as unverified and confirm it from the key stamp or the VIN. The car is not push-button start. It takes a mechanical key with a chip inside the head, and programming is done through the OBD port.

An important point for owners of cars this age: all-keys-lost is possible, but it can require an immobilizer ECU reset on top of cutting a new blade. That is a bigger job than copying a key you can hand us. A non-transponder hardware-store copy will turn the lock and still will not start the car.

The 2001-2006 LS430: 4D-68 chip and the short high-security key

The LS430 is the XF30 generation, and this is the best-documented stretch of the LS key story. Vendor catalogs list a 4D-68 transponder on the short high-security TOY50-PT key for the full 2001 to 2006 run, and our data marks that chip as verified for every one of those years. On early cars we still confirm the match from the key stamp or the VIN, because a car that has had a past ignition or key repair does not always match its brochure.

Some 2004 to 2006 cars also carry an optional SmartAccess card-key system. Not every car has it, so we confirm per vehicle whether yours is a standard blade-key car or one of the card-key ones before we say what is involved.

These cars are not push-button start in the way the later LS460 is. The key still goes in the ignition and has to turn the cylinder, so the physical condition of the blade and the ignition wafers matters as much as the chip. Programming is through OBD, and our data shows both duplication and all-keys-lost as possible for every LS430 year.

The 2007-2017 LS460 and LS600h: smart fobs, and where the data gets less certain

The XF40 generation brought the smart key and push-button start as standard. This is also where our data is the most mixed, so here is the honest breakdown instead of a tidy one-line answer.

2007 and 2008: the fob is the HYQ14AAB (board 0140). Catalogs confirm the fob but rarely name the chip inside it. One lists a 4D-71 smart chip, and by industry convention this first-generation system is DST40-based. We leave the chip unverified and confirm by VIN. All-keys-lost on early Lexus smart systems historically meant resetting or replacing the smart ECU, or a dealer visit. Current professional tools usually reset the smart code through OBD, and we confirm coverage per vehicle.

2009 through 2012: these years sit between the early HYQ14AAB fob and the later one. Our data does not name a chip or confirm a fob family for them, so we identify the fob by part number and VIN before quoting. We would rather tell you that than guess.

2013 through 2017: the fob is the HYQ14ACX with a trunk button (board 271451-5290). Catalog listings conflict on the chip. Most call it DST80, also written 'DST+', but at least one lists DST40. Because of that conflict we match a replacement by the fob's FCC ID and board number, not by the chip label. All-keys-lost on these cars is handled by an OBD smart-code reset with professional tools. LS600h cars share this fob family in the same years.

The 2018-2026 LS500 and LS500h: 8A smart keys and tighter rules

The XF50 generation uses 8A (128-bit DST-AES) smart keys. The 2018 to 2020 cars take the HYQ14FBF fob, and our data marks the chip as verified for 2018, 2019 and 2020. From 2020 a HYQ14FBZ fob (board 3410) also appears, and listings for that fob cover the LS500 through 2023.

For 2021 through 2026 the same-generation 8A hardware is expected, but our data marks it unverified, so we confirm each car by VIN. That includes the final model year. The LS 500h hybrid ended after 2025, and 2026 closes the LS out with a 250-unit LS 500 AWD Heritage Edition. If you own one of those, we will verify the fob against the VIN before ordering anything.

The bigger change in this era is not the hardware but the access. Around the 2018 transition, requirements for all-keys-lost work began tightening, and we confirm what a car needs on each job. From 2020, an all-keys-lost situation in the US generally requires Toyota or Lexus server codes, reached through locksmith-credentialed NASTF VSP access or tool-specific authorization. Adding a spare key when you still have a working fob is less restricted.

Duplicate or all keys lost: how the two jobs differ by era

Our data lists the same two possibilities for every year: you need an original key in hand to duplicate, and an all-keys-lost job is possible. The difference is in how involved each one is, and that changes with the car's age.

A duplicate, meaning adding a key while you still have a working one, is the simpler route on every LS. The car already recognizes one key, so the new one is added to it. This is the point where a spare is the lighter-cost option compared with waiting until the last key is gone.

All-keys-lost is a different job, and it varies by era:

• 2000 LS400: possible, but on cars this old it can require an immobilizer ECU reset, and we confirm the chip from the key stamp or VIN first.
• 2001-2006 LS430: possible through OBD, with a new short high-security blade cut to the car and a 4D-68 chip programmed in.
• 2007-2008 LS460: historically a smart ECU reset or replacement, or a dealer visit. Current tools usually reset the smart code through OBD, confirmed per vehicle.
• 2009-2012 LS460: we identify the fob and chip by part number and VIN before saying what is involved.
• 2013-2017 LS460/LS600h: an OBD smart-code reset with professional tools, matched by the fob's FCC ID and board number.
• 2018-2019 LS500: requirements were tightening, so we confirm per job.
• 2020-2026 LS500: generally needs Toyota/Lexus server-code authorization, through NASTF VSP access or tool-specific authorization.

Is LS key programming OBD or dealer-only?

In our data, programming on every LS year runs through the OBD port. None of the model years is listed as a strictly dealer-only job. That said, OBD does not mean quick or automatic. On the newest cars the OBD connection is only the last step, and the authorization to do all-keys-lost work has to come first. If a particular car cannot be authorized for a lost-key job, we will tell you plainly, and the dealer may be your route.

Here is how a typical LS key job goes with us:

1. You call (213) 577-1366 and tell us the year, whether the car has a push-button start, and how many working keys you still have.
2. We ask for the VIN, and for older cars a photo of any stamp on the key or fob, so we can identify the correct blade, chip and fob family.
3. We explain what your situation involves: a duplicate, an all-keys-lost job, or a fob battery or blade repair. Where the data is unverified or conflicting, we say we are confirming by VIN.
4. We ask you to show that the car is yours before we make or program a key.
5. We cut the blade or emergency key where needed, then program the key or fob to the car through the OBD port.
6. We test every function: starting the car, locking and unlocking, and the mechanical blade in the door and ignition if the car has one.

What affects the cost of an LS key?

We do not publish numbers on this page, because an LS key job varies too much to quote honestly without knowing the car. These are the things that move the cost:

• Your era: a bladed transponder key and a smart fob are very different parts, and a smart fob is costlier to replace than a bladed key.
• Duplicate versus all-keys-lost: adding a key when you hold a working one is usually the more economical route.
• Authorization on newer cars: 2020 and later all-keys-lost work can require server-code access, which adds steps.
• Fob identification: where the chip is unverified or conflicting, such as the 2013 to 2017 fob, we match by FCC ID and board number, which takes careful verification.
• Condition of the existing hardware: a worn blade, worn ignition wafers or a water-damaged fob can mean extra work beyond the key itself.
• Where the car is: the car's location and whether it has to be reached by our mobile vans or can come to our Westwood storefront.

What goes wrong with LS keys most often?

Three patterns come up in our data, and they split along the same line as the key eras.

• Bladed LS400 and LS430 cars: worn ignition wafers on high-mileage cars, and a worn or chipped high-security blade that stops turning the lock.
• Hardware-store copies: a non-transponder copy will turn the lock but will not start the car, so a cheap-looking copy ends up costing you a second visit.
• Smart-fob LS460 and LS500 cars: a dead fob battery, where the car reports 'key not detected.' Try a battery replacement and the mechanical backup key before assuming the fob is dead.
• Water-damaged or crushed fobs: these often need a full replacement fob, and a lost-fob replacement costs more than a bladed key.
• Every year listed has a mechanical backup key, so if the fob will not respond you may still be able to get into the car. Starting it is a separate matter.

When should you call us, and when does the dealer make sense?

Call us when you have a working key and want a spare, when the key is lost, when the blade is worn, or when the fob has stopped working and you are not sure whether it is the battery. We work from a storefront at 10740 Wilshire Blvd in Westwood and from mobile service vans, and we serve 140 cities across Los Angeles and Ventura counties. Our phone, (213) 577-1366, is answered 24 hours a day, 7 days a week, year-round.

The dealer can make sense in two cases: a newer LS500 where all-keys-lost needs manufacturer authorization we cannot obtain, and a car you already plan to leave at the dealer for other work. We would rather say that up front than take a job we cannot finish.

What we offer is simple. Wilshire Lock & Key has been in business since 1987. You talk to one company, with no dispatch middlemen between you and the person doing the work, and David, the owner and lead technician, oversees the work. One more thing worth knowing: California requires locksmith companies to hold a BSIS LCO license, so ask any locksmith for it, including us. If you want to describe your car in writing first, use the contact page, or start from the Wilshire Lock & Key home page for everything else we do.

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