Does it work when all keys are lost?

Yes. The device is built for the all-keys-lost case on Toyota and Lexus 4D and smart key systems, which is its main selling point over basic key duplicators.

Which vehicles does it cover?

Toyota and Lexus models using 4D or 4C chip keys and smart key anti-theft systems, over K-line or CAN-BUS. It is not a universal programmer for other brands.

How long does programming take?

The maker claims about 20 seconds per key once the correct blank and procedure are used.

Do I need another tool?

Sometimes. If the LED stays on constantly after matching, the maker says to clear the error code with an anti-theft tool such as a T300.

One smart key programmer unit. Blank keys and any clearing tools are not included.

Why does the SEC light stay on after programming?

The maker says this can happen if a valet key was used; only the main key can manually exit the study mode.

Where is the 4D and 4C Chip Key Programmer cheapest?

At Walmart, for $17.55, as of our latest check.

What do buyers say about the 4D and 4C Chip Key Programmer?

Rated 2 out of 5 from 1 ratings.

JZROCKER

4D and 4C Chip Key Programmer

Best price now

$17.55at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

JZROCKER

4D and 4C Chip Key Programmer

Best price now

$17.55at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Last seen at $17.55 at Walmart on Nov 12.

Our take on the 4D and 4C Chip Key Programmer

The JZROCKER 4D and 4C Chip Key Programmer is a handheld tool for programming 4D and 4C chip keys and smart keys on Toyota and Lexus vehicles. It works over both K-line and CAN-BUS, handles an all-keys-lost situation, and is claimed to finish a key in about 20 seconds. It is a single-purpose device aimed at locksmiths and owners doing their own key work, not a general OBD2 scanner. Compared with a full diagnostic tablet it is cheaper and simpler, but it does one job and depends on the right blank key and correct procedure.

Best forLocksmiths handling Toyota and Lexus key jobsOwners recovering from an all-keys-lost situationDIYers adding a spare 4D or 4C chip keyShops wanting a dedicated key programmer separate from a scan tool

Pros

Handles 4D and 4C chip keys plus smart key systems
Supports K-line and CAN-BUS protocols
Works when all keys are lost
Fast key-making claimed at about 20 seconds
Simple single-purpose tool, no tablet menus

Cons

Only covers Toyota and Lexus 4D/4C systems
Requires the correct new smart key blank
May need a separate tool such as T300 to clear error codes
Some steps need the main key, not the valet key
Opening the cover voids any support

4D and 4C Chip Key Programmer prices at every store

WalmartNew
In stockSold by Jundiy Co., LtdReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$17.55+ $2.99 shippingChecked Nov 12
Visit Walmart

About the 4D and 4C Chip Key Programmer

This is a key programmer for 4D and 4C chip keys. It programs keys for 4D and smart key anti-theft systems, including Lexus smart key systems, and it supports programming when all keys are lost.

One key takes about 20 seconds to make. It works with K line and CAN-BUS protocols and is made for programming without damaging the anti-theft system. The housing is ABS.

Read the operation instructions and important notice before making a key. Use the correct new smart key and follow the steps exactly. Do not open the cover of the programmer or the dash board. The device is intended for legal auto repair only.

Material: ABS
Size: As shown
Programming time: About 20 seconds per key
Protocols: K line and CAN-BUS
Key types: 4D keys and smart keys
All keys lost: Supported
In the box: 1 x Smart Key Programmer
Note: LED stays on: If the device matches the key and the LED shines constantly, clear the error code with an anti-theft system tool such as the T300
Note: SEC light: If the key starts but the SEC light stays on, the spare key may have been used. Only the main key can manually end study mode

Specifications

size: As ShownSource

Questions and answers

Does it work when all keys are lost?: Yes. The device is built for the all-keys-lost case on Toyota and Lexus 4D and smart key systems, which is its main selling point over basic key duplicators.
Which vehicles does it cover?: Toyota and Lexus models using 4D or 4C chip keys and smart key anti-theft systems, over K-line or CAN-BUS. It is not a universal programmer for other brands.
How long does programming take?: The maker claims about 20 seconds per key once the correct blank and procedure are used.
Do I need another tool?: Sometimes. If the LED stays on constantly after matching, the maker says to clear the error code with an anti-theft tool such as a T300.
What is in the box?: One smart key programmer unit. Blank keys and any clearing tools are not included.
Why does the SEC light stay on after programming?: The maker says this can happen if a valet key was used; only the main key can manually exit the study mode.
Where is the 4D and 4C Chip Key Programmer cheapest?: At Walmart, for $17.55, as of our latest check.
What do buyers say about the 4D and 4C Chip Key Programmer?: Rated 2 out of 5 from 1 ratings.

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