Call any time
Lexus Key Replacement Oxford Smart Keys From £220
Smart keys for Lexus IS, CT200h, NX, RX and UX hybrids made where the car is parked. We check the registration first, since the newest Lexus security can need extra steps or the dealer.
Get a Lexus key price
Tell us what you need and we will call you straight back. Calling is quickest: 07520 644 595. Photos by WhatsApp: 07466 695655
Hybrid aware
We check the 12V battery first, as a weak one can mimic a dead key.
Smart Access keys
Keyless entry and push button start fobs coded to your Lexus.
V5C and ID checked
A key is only made for the registered keeper or with their written say so.
From £220
Price set by model and year and agreed on the phone first.
Our Lexus key replacement in Oxford makes spare and lost smart keys for most IS, CT200h, NX, RX and UX models at the car, usually the same day, from £220. Lexus is Toyota’s premium brand and shares much of its key technology, so the tools that work on a Corolla often work on an NX. The difference is that more Lexus models use keyless Smart Access as standard, and the newest generation of Lexus security can need extra work or a dealer. We check your registration before travelling and tell you honestly which group your car falls into. The wider Oxford car key replacement page lists every make we cover.
Is it the key, or is it the hybrid battery?
This is the most useful thing to know about a Lexus that seems to have rejected its key. Every Lexus hybrid has two batteries: the large drive battery and a small 12V auxiliary battery that powers the electronics. When the 12V battery is weak, the car can show a key not detected warning, ignore the start button and refuse to unlock, even though the key is fine.
Two checks that cost nothing
First, look at the interior lights and dashboard. If they are dim or dead, the 12V battery is the likely cause and a jump start or battery replacement is what you need, not a key. Second, if the dash wakes up but says no key, hold the fob, logo side first, against the start button while pressing the brake. Most Lexus models will read a key with a flat cell that way. If the car then shows READY, you need a new fob battery, not a new key.
If neither works, the key may be damaged or lost and that is where we come in. If you are locked out with the key inside, see keys locked in a car instead.
Lexus keys by generation
Lexus key design falls into three broad phases. The dates below are approximate and vary by model, which is why we confirm by registration.
Early IS, GS and RX (late 1990s to mid 2000s)
A metal key with an internal track cut, a transponder chip in the head and either a built in remote or a separate fob. These are usually straightforward to copy or replace on site, and are the cheapest Lexus keys to deal with.
Smart Access era (roughly 2005 to 2017)
The IS250 and IS220d, later GS and RX, CT200h and the first NX moved to Smart Access with push button start. The fob stays in your pocket, the car senses it at the door handle, and a slim emergency blade slides out of the fob for the driver’s door. Spare and lost keys on most of these are made on site.
Latest platforms (roughly 2018 onwards)
Newer UX, ES, later NX and RX models use a more recent security generation shared with the latest Toyotas. On many of these a spare can still be added, but an all keys lost job may need direct access to modules behind the dash, and a few may only be possible through Lexus. We tell you which before booking.
Some RX and LS models were offered with a slim card key as an extra. Those can be harder to source, so tell us if that is what you had.
Lexus models Oxfordshire drivers bring us
The CT200h is the Lexus we are asked about most often in and around Oxford. It is a popular second hand hybrid for commuters on the A34 and A40, and many changed hands with only one key. The NX and RX are common in the villages and on school runs, and the IS300h turns up as a quiet executive car parked at business sites such as Milton Park and Harwell.
Because Lexus and Toyota share so much, our Toyota key replacement page is useful background if you own both, which plenty of households do.
What a Lexus key replacement in Oxford involves
Registration check
Send the registration by phone on 07520 644 595 or by WhatsApp to 07466 695655. We look up the key type and security generation and quote from £220, depending on model and year.
Ownership check
At the car we see the V5C logbook and photo ID. If the car is a company or lease vehicle, we need written authority from the keeper.
Key made and paired
A new smart key is paired with the car’s smart key computer. On all keys lost jobs this can take longer as the system has to be reset first.
Everything tested
Keyless entry at each door, the boot sensor, push button start with the car showing READY, and the emergency blade in the driver’s lock.
Where the system allows it, keys that are not present are removed from the car’s memory so a lost Lexus key cannot be used to drive it away.
Common Lexus fob faults and what they cost to fix
| Symptom | Likely cause | Usual fix |
|---|---|---|
| Keyless entry stopped, buttons still work | Weak fob cell, or the car’s smart entry has been switched off | New coin cell, or turn smart entry back on as shown in your handbook |
| Key not detected on start, dash lights normal | Fob cell nearly flat or fob damaged | Hold fob to start button, then replace cell or key |
| Nothing at all, dim lights | 12V auxiliary battery flat | Jump start or new battery, no key work needed |
| Emergency blade will not turn the door | Driver’s lock seized from years of keyless use | Lubricate and free the lock while we are there |
| Fob dropped, casing split | Physical damage to the board | New smart key or reprogramming |
The seized door lock is worth a mention. Lexus owners almost never use the blade, so after ten years the driver’s lock can be stiff exactly when the fob fails. If the remote side alone needs attention, see our key and fob programming service.
Lexus centre or mobile locksmith: a fair comparison
When the Lexus centre is the better call
If your Lexus is still under warranty, is one of the latest platforms where we cannot help, or you simply prefer a manufacturer key, the dealer is the right route. Expect the car to need to be there and the key to be ordered in.
A mobile auto locksmith makes most sense when the car cannot be driven because every key is gone, when the car is parked somewhere awkward, or when you want a second key without giving up the car for a day. For keyless fobs across other brands, see our proximity and smart key page, and if a Range Rover or Discovery shares the drive with your Lexus, our Land Rover key replacement page covers it. Travel inside 5 miles of central Oxford is free, and the full Oxford locksmith prices are published.
Lexus key prices
Lexus keys are priced from £220 because most are smart keys on a high security system.
| Service | Price | What's included |
|---|---|---|
| Lexus smart key (spare or replacement) | From £220 | Exact price by model and year |
| Lexus all keys lost | From £220 | Quoted after the registration check, higher on newer models |
| Mechanical key cutting (no chip) | £35 to £55 | Emergency blades and older IS door keys |
| Programming only (customer supplies cut key) | £55 to £95 | Where the key and car allow it |
| Car lockout daytime | From £85 | Keys locked inside, opened without damage |
| Car lockout nights, weekends, bank holidays | From £130 | Out of hours entry |
Prices include VAT and labour. Parts are listed separately. See the full Oxford locksmith price list.
