Open 24 hours, 7 days a week
Auto Locksmith Lexus in St Albans and Hertfordshire
Herts Car Keys makes and programs Lexus keys at the vehicle, across St Albans and Hertfordshire, from a base at Peartree Farm in Welwyn Garden City. A Lexus takes one of 6 key systems built between 1997 and the current cars, running from Fixed code to 128 bit AES, BA family, on the TOY48 and TOY43 blades. Every one of them is worked at the vehicle rather than at a dealer. Darius Arbaciauskas attends himself. Car keys start from £120 and every key carries a 12 month warranty.
- 6 key systemsCovered on this make
- £120Car keys start from
- 12 monthsWarranty on every key
Request a quote online
- Over 7,000jobs completed
- 5.0from 130+ Google reviews
- SERMI approvedDBS checked and fully insured
- 12 month warrantyon every key
Lexus Key Systems by Model Year
Lexus has run 6 key and immobiliser systems in the United Kingdom, from Fixed code on cars of approximately 1997 to 2005 to 128 bit AES, BA family on 2023 onward on LBX.
| Key system | Approximate years | What it is |
|---|---|---|
| Fixed code | approximately 1997 to 2005 | Texas 4C with a fixed code transponder |
| DST40 | approximately 2001 to 2009 | Texas Crypto 4D-68 at 40 bit |
| DST40 smart key | approximately 2005 to 2009 | Texas TMS37126 at 40 bit, as a smart key |
| DST80 | approximately 2009 to 2015 | Texas G at 80 bit |
| DST-AES | approximately 2013 onward | Texas H-8A at 128 bit |
| 128 bit AES, BA family | 2023 onward on LBX | A 128 bit AES smart key in the BA family |
Year bands overlap, because a manufacturer changes system part way through a model run rather than on the first of January.
Lexus Key Work Covered From St Albans
Six kinds of Lexus key work are carried out where the car stands, across the 6 key systems in the table above.
- Replacement Lexus keys. Cut to the TOY48 profile at the vehicle and programmed where the key and the vehicle require it, which is the car key replacement work the St Albans page sets out in full.
- All keys lost on a Lexus. A key built from the vehicle itself when nothing is left to copy, which on a 128 bit AES, BA family car is read from the vehicle rather than cut from a code.
- Lexus lockouts. The TOY48 lock is picked or decoded using non destructive entry methods designed to avoid damage to the door, the lock and the glass.
- Spare Lexus keys. Cut at the vehicle and programmed where the key and the vehicle require it, from a working original, so the 128 bit AES, BA family system stays as it is.
- Lexus fob and remote faults. A fob that locks the doors and leaves the engine dead points at the remote rather than the 128 bit AES, BA family transponder, and both are tested before a key is quoted.
- Older Lexus models. Cars on Fixed code are still worked on, and an early transponder key is often the quicker job of the two because there is less to synchronise.
The Key Blade Used on a Lexus
The blade is the metal part of the key that turns in the lock or sits inside the fob. On Lexus the profile is TOY48, TOY43, TOY38R, TOY40, TOY41, TOY47, TOY49, TOY2 and TOY2014, which decides the blank that is cut and the decoder that opens the lock when no working key is left.
- TOY48. Used on Toyota and Lexus together.
- TOY43. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY38R. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY40. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY41. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY47. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY49. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY2. Stocked for Toyota and Lexus by a UK blade supplier.
- TOY2014. Stocked for Toyota and Lexus by a UK blade supplier.
Blade codes are an aftermarket convention rather than Lexus part numbers, so the blank is checked against the lock on the day.
Lexus Models Covered Across Hertfordshire
The key system table above is built from 9 Lexus models, and those are the Lexus models worked on across St Albans and Hertfordshire. They are IS, RX, NX, ES, CT, GS, LS, LBX and RZ.
Smart key from 2005 on IS, 2006 on GS, 2007 on LS, 2010 on GX 460, 2008 on LX 570 and 2011 on CT 200h.
A Lexus outside this list is checked against the registration rather than assumed either way, because the key system decides the job and the badge does not.
What a Lexus Key Job Costs
Car keys start from £120 and car lockouts from £100. A Lexus key sits inside that range or above it according to which of the 6 systems is in the car, because a Fixed code key and a 128 bit AES, BA family key are different parts and different programming.
There is no Lexus model or year range that is closed to an independent locksmith. Where a particular vehicle turns out to need manufacturer level access, Darius says so on the phone rather than at the kerb.
Programming Tools Used on a Lexus
The tool is named because it decides what is possible at the vehicle. These are the tools on the van that cover Lexus.
- Lonsdor K518 and K518 Pro. Covers Toyota and Lexus all keys lost, including 8A and 4A smart keys and 2025 onward smart keys.
What Happens When You Call About a Lexus
Five steps from the first call to a working key.
Contact Darius. The line is answered at any hour.
Give the registration, the model year and the problem. On a Lexus the year decides which key system is in the car, so it decides the tool.
Take the price and the arrival estimate. The exact price is confirmed before work starts.
Darius attends. He checks authorisation where ownership verification is required.
The work is completed and tested at the vehicle. Any key supplied carries the 12 month warranty.
Who Attends the Lexus Job
Darius Arbaciauskas attends every job himself. Six years in the trade, over 7,000 car key and lockout jobs, and one locksmith in the business, so the person who quotes the Lexus work is the person who arrives.
He is approved under the SERMI scheme, DBS checked and fully insured, and every key carries a 12 month warranty.
Lexus Keys Made at Your Vehicle
Call Darius with the registration and the model year.
Recent Car Key Jobs From the Record
No Lexus job is held in the record that can be shown here, so the entries below are other makes.
| Vehicle | What happened | Outcome |
|---|---|---|
| 2021 Porsche Macan GTS | One key only, original key supplied | A spare key cut and programmed to the vehicle |
| 2016 Vauxhall Astra GTC | Every key gone | A replacement key made and programmed on site |
The town each job was carried out in is not stated, because the record does not hold it.
Makes Closest to Lexus by Key System
Three makes that share a key platform with Lexus, then the full list.
Toyota shares the Toyota transponder families and is covered from the same van.
Nissan shares key systems through the Renault Nissan alliance and is covered from the same van.
BMW shares the BMW key and module platform and is covered from the same van.
All car makes covered lists every make on the van and the makes that are not covered.
Frequently Asked Questions
Call 07308 888825Can a Lexus key be made when every key is lost?
Yes. The lost car key work builds a key from the Lexus itself, so nothing has to be copied, and it is carried out where the car stands, at a home, a works unit or the roadside. On a Lexus the job depends on which of the 6 key systems is in the car, which is read from the registration.
How much is a replacement Lexus key?
Car keys start from £120. A Lexus key sits inside that range or above it according to the key system, because a Fixed code key is a different part from a 128 bit AES, BA family key and takes different programming. A spare cut from a working key is the cheaper of the two.
Which key system is in my Lexus?
The model year identifies it. Lexus ran Fixed code on cars of approximately 1997 to 2005, and 128 bit AES, BA family on 2023 onward on LBX. The table on this page lists the 6 systems and the years for each.
Does a Lexus key have to go to a dealer?
Not on the models covered here. There is no Lexus model or year range that is closed to an independent locksmith, and Herts Car Keys is approved under the SERMI scheme, which gives an independent a recognised route to manufacturer security data on the makes that take part. Where a particular vehicle turns out to need manufacturer level access, Darius says so on the phone.
Which key blade does a Lexus use?
Lexus uses 9. They are TOY48, TOY43, TOY38R, TOY40, TOY41, TOY47, TOY49, TOY2 and TOY2014, and the one on a given car follows the model and the year.
Can a locked Lexus be opened without breaking anything?
The car is opened using non destructive entry methods designed to avoid damage to the door, the lock and the glass. The method is chosen from the vehicle and the lock rather than applied the same way to every car.