1999 Lexus LS400 Keys
Keep Your 1999 Lexus LS400 in Top Shape with Quality Keys
Whether you’re repairing or upgrading your Key, using high-quality parts is key to keeping your 1999 Lexus LS400 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Alarm and Keyless Entry Transmitters, Vehicle Keys, and Remote Key Housings. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1999 Lexus LS400 Key at Advance Auto Parts is around $81.66, with a range that starts at $17.99 and goes up to $190.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Lexus – 3 Button Black Key Combo Replacement Shell, Lexus Transponder Key, and Keyless Entry Remote 3 Button start at just $17.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Key, don’t forget to check out other key components like Covers and Storage and Cargo Products. At Advance Auto Parts, we’re here to help you keep your 1999 Lexus LS400 in peak condition, inside and out.
Find Your Specific 1999 Lexus LS400 Keys
Looking for the perfect Key for your 1999 Lexus LS400? You’re in the right place. Below, you’ll find links to various types of Keys that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Keys, ensuring durability and a precise fit for your Lexus LS400. Whether you’re driving a 1999 model or another popular model year like
1991,
1992,
1993,
1994,
1995,
1996,
1997,
1998, and
2000, we’ve got you covered. Purchasing Keys from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Keys that fit your vehicle.
Essential 1999 Lexus LS400 Keys
iKeyless – Lexus – 3 Button Black Key Combo Replacement Shell (Part No.LEXMTSHORT)
from
$17.99
Sometimes the outer case for your keyless entry remote can be damaged or cracked. Even normal wear and tear can often lead to an unpleasant cosmetic appearance. This replacement shell will have your remote looking sleek and stylish in no time.
Product Features:
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Product Features:
- Replacement Key Combo Case for Select Lexus vehicles
- Replaces OEM factory-original remote case
iKeyless – Lexus Transponder Key (Part No.LEXKEY300)
from
$35.99
Needing a new key? We’ve got you covered! This key contains an embedded micro-chip called a transponder. Each transponder has its own unique code–it’s the key’s ‘fingerprint’. When the key is inserted into the ignition and turned, the transponder is energized and broadcasts its unique code to the car’s receiver in the dashboard. If the car’s receiver recognizes the code, it will allow the car to start. This specific key holds a Texas 4C transponder chip. This key also has a high security blade, a preventive measure against ignition picking and key duplication. Cutting and origination services for this key will need to be performed with a special laser cutting machine.
Product Features:
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Product Features:
- Replacement Key with Texas 4C Transponder Chip
- Contains a transponder chip for enhanced security
- Key blade ready for cutting and pairing
iKeyless – Lexus Transponder Key (Part No.LEXKEY500)
from
$35.99
Needing a new key? We’ve got you covered! This key contains an embedded micro-chip called a transponder. Each transponder has its own unique code–it’s the key’s ‘fingerprint’. When the key is inserted into the ignition and turned, the transponder is energized and broadcasts its unique code to the car’s receiver in the dashboard. If the car’s receiver recognizes the code, it will allow the car to start. This specific key holds a Texas 4D-67 transponder chip. This key also has a high security blade, a preventive measure against ignition picking and key duplication. Cutting and origination services for this key will need to be performed with a special laser cutting machine.
Product Features:
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Product Features:
- Replacement Key with High Security Blade and Texas 4C Transponder Chip
- Contains a transponder chip for enhanced security
- Key blade ready for cutting and pairing
iKeyless – Lexus/Kia/Hyundai/Mazda Non-Transponder Key (Part No.LEXKEY200)
from
$35.99
Keys come in many shapes and sizes. Non-transponder keys, such as these, require no special programming. They will need to be cut by a locksmith or automotive professional.
Product Features:
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Product Features:
- Replacement Non-Transponder Key for Lexus/Kia/Hyundai/Mazda Vehicles
- Requires no special programming
- Comes with uncut key blade
Dorman – Keyless Entry Remote 3 Button (Part No.99601ST)
from
$190.99
This keyless entry remote is designed to match the appearance and function of the original key fob on specified vehicles, providing a nearly identical replacement or spare transmitter. It requires programming with a compatible scan tool to be paired with a vehicle. Setup by a qualified and properly equipped professional is recommended.
Product Features:
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Product Features:
- Direct replacement – this keyless entry remote is designed to match the function of the original key fob on specified vehicles
- Programming required – a compatible scan tool is required to properly pair this remote; setup by a qualified professional is recommended
- Durable construction – made from quality materials and components to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Popular 1999 Lexus LS400 Keys Categories
Most Popular Alarm and Keyless Entry Transmitter for 1999 Lexus LS400s
Enhance your 1999 Lexus LS400 with this popular Alarm and Keyless Entry Transmitter we have in stock, for $190.99.
Dorman – Keyless Entry Remote 3 Button (Part No.99601ST)
from
$190.99
This keyless entry remote is designed to match the appearance and function of the original key fob on specified vehicles, providing a nearly identical replacement or spare transmitter. It requires programming with a compatible scan tool to be paired with a vehicle. Setup by a qualified and properly equipped professional is recommended.
Product Features:
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Product Features:
- Direct replacement – this keyless entry remote is designed to match the function of the original key fob on specified vehicles
- Programming required – a compatible scan tool is required to properly pair this remote; setup by a qualified professional is recommended
- Durable construction – made from quality materials and components to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Best-Selling 1999 Lexus LS400 Vehicle Key
Upgrade your LS400 with our best-selling Vehicle Key.
iKeyless – Lexus Transponder Key (Part No.LEXKEY300)
from
$35.99
Needing a new key? We’ve got you covered! This key contains an embedded micro-chip called a transponder. Each transponder has its own unique code–it’s the key’s ‘fingerprint’. When the key is inserted into the ignition and turned, the transponder is energized and broadcasts its unique code to the car’s receiver in the dashboard. If the car’s receiver recognizes the code, it will allow the car to start. This specific key holds a Texas 4C transponder chip. This key also has a high security blade, a preventive measure against ignition picking and key duplication. Cutting and origination services for this key will need to be performed with a special laser cutting machine.
Product Features:
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Product Features:
- Replacement Key with Texas 4C Transponder Chip
- Contains a transponder chip for enhanced security
- Key blade ready for cutting and pairing
Top-Quality Remote Key Housings for 1999 Lexus LS400s
Choose a high-quality OEM or aftermarket Remote Key Housing for Lexus LS400s and enjoy top-notch performance from $17.99.
iKeyless – Lexus – 3 Button Black Key Combo Replacement Shell (Part No.LEXMTSHORT)
from
$17.99
Sometimes the outer case for your keyless entry remote can be damaged or cracked. Even normal wear and tear can often lead to an unpleasant cosmetic appearance. This replacement shell will have your remote looking sleek and stylish in no time.
Product Features:
See More
Product Features:
- Replacement Key Combo Case for Select Lexus vehicles
- Replaces OEM factory-original remote case
FAQs for 1999 Lexus LS400 Keys
What are the best-selling Keys for 1999 Lexus LS400s?
Out of 3 Keys that fit 1999 Lexus LS400s, the following parts are the top sellers:
- Lexus – 3 Button Black Key Combo Replacement Shell (12478977) – $17.99
- Lexus Transponder Key (12478811) – $35.99
- Keyless Entry Remote 3 Button (50138879) – $190.99
What’s the price range for 1999 Lexus LS400 Keys?
The prices of Keys for the 1999 Lexus LS400 range from $17.99 up to $190.99 for the most premium parts.
What is the average price of a Key for a 1999 Lexus LS400?
The average price for Keys for the 1999 Lexus LS400 is $81.66. Keep in mind the variety of part types within our Key category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Keys for other Lexus LS400 model years?
What are the cheapest Keys for my 1999 Lexus LS400?
The cheapest 1999 Lexus LS400 Keys we carry are:
- Lexus – 3 Button Black Key Combo Replacement Shell (12478977) – $17.99
- Lexus Transponder Key (12478811) – $35.99
- Keyless Entry Remote 3 Button (50138879) – $190.99
Does Advance Auto Parts sell Keys for any other 1999 Lexus models?
Yes. We stock Keys for 6 other popular 1999 Lexus models. Some of the most popular are 1999 ES300 Keys, 1999 GS300 Keys, 1999 SC300 Keys, 1999 RX300 Keys, and 1999 SC400 Keys.
What types of Keys do you sell for my 1999 Lexus LS400?
As of 11/2/25, these are some of the most in-demand types of Keys for a 1999 Lexus LS400:
Can I get help with 1999 Lexus LS400 Key orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Lexus Keys and more.
What is your return policy for Lexus LS400 Keys?
Advance Auto Parts keeps returns simple. For new Lexus LS400 Keys and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.