2021 GMC Terrain Keys
Keep Your 2021 GMC Terrain in Top Shape with Quality Keys
Whether you’re repairing or upgrading your Key, using high-quality parts is key to keeping your 2021 GMC Terrain 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 and Vehicle Keys. 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 2021 GMC Terrain Key at Advance Auto Parts is around $105.49, with a range that starts at $35.99 and goes up to $174.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Buick/Chevrolet/GMC Transponder Key and KEYLESS ENTRY REMOTE start at just $35.99 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 2021 GMC Terrain in peak condition, inside and out.
Find Your Specific 2021 GMC Terrain Keys
Looking for the perfect Key for your 2021 GMC Terrain? 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 GMC Terrain. Whether you’re driving a 2021 model or another popular model year like
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019, and
2020, 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 2021 GMC Terrain Keys
iKeyless – GM Simple Key – 3 Button Flip Key Remote (Part No.GMFK3SK)
from
$82.99
Simple Key is a new way to easily replace modern car keys. The “do-it-yourself” kit includes basic instructions to pair the key to your vehicle in just a few minutes-no tools required. Once the key is cut, plug in the included EZ installer and press a button. That’s it. You’re finished! Set-up instructions are included with purchase. This specific product performs two functions: it works as a key and keyless entry remote. It has three button functions: Lock, Unlock, and Panic. The key portion starts the vehicle ignition while the remote operates the keyless entry functions (lock,unlock, etc.). Enhancing vehicle security is just a simple click away.
Product Features:
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Product Features:
- Includes DIY Programming Instructions
- 3 button functions: LOCK, UNLOCK, and PANIC
- Freshly installed battery included
iKeyless – GM Simple Key – 5 Button Flip Key with Trunk and Remote Start (Part No.GMFK5TRSSK)
from
$82.99
Simple Key is a new way to easily replace modern car keys. The “do-it-yourself” kit includes basic instructions to pair the key to your vehicle in just a few minutes-no tools required. Once the key is cut, plug in the included EZ installer and press a button. That’s it. You’re finished! Set-up instructions are included with purchase. This specific product performs two functions: it works as a key and keyless entry remote. It has five button functions: Lock, Unlock, Trunk, Remote Start and Panic. The key portion starts the vehicle ignition while the remote operates the keyless entry functions (lock,unlock, etc.). Enhancing vehicle security is just a simple click away.
Product Features:
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Product Features:
- Includes DIY Programming Instructions
- 5 button functions: LOCK, UNLOCK, TRUNK, REMOTE START, and PANIC
- Freshly installed battery included
iKeyless – GM Simple Key – 4 Button Flip Key with Trunk (Part No.GMFK4TSK)
from
$82.99
Simple Key is a new way to easily replace modern car keys. The “do-it-yourself” kit includes basic instructions to pair the key to your vehicle in just a few minutes-no tools required. Once the key is cut, plug in the included EZ installer and press a button. That’s it. You’re finished! Set-up instructions are included with purchase. This specific product performs two functions: it works as a key and keyless entry remote. It has four button functions: Lock, Unlock, Trunk, and Panic. The key portion starts the vehicle ignition while the remote operates the keyless entry functions (lock,unlock, etc.). Enhancing vehicle security is just a simple click away.
Product Features:
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Product Features:
- Includes DIY Programming Instructions
- 4 button functions: LOCK, UNLOCK, TRUNK, and PANIC
- Freshly installed battery included
iKeyless – GM Simple Key – 4 Button Flip Key with Remote Start (Part No.GMFK4RSSK)
from
$82.99
Simple Key is a new way to easily replace modern car keys. The “do-it-yourself” kit includes basic instructions to pair the key to your vehicle in just a few minutes-no tools required. Once the key is cut, plug in the included EZ installer and press a button. That’s it. You’re finished! Set-up instructions are included with purchase. This specific product performs two functions: it works as a key and keyless entry remote. It has four button functions: Lock, Unlock, Remote Start, and Panic. The key portion starts the vehicle ignition while the remote operates the keyless entry functions (lock,unlock, etc.). Enhancing vehicle security is just a simple click away.
Product Features:
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Product Features:
- Includes DIY Programming Instructions
- 4 button functions: LOCK, UNLOCK, REMOTE START, and PANIC
- Freshly installed battery included
iKeyless – Buick/Chevrolet/GMC Transponder Key (Part No.GMKEY800)
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 Philips 46 crypt chip and has a wide range of compatibilities with multiple Buick, Chevrolet, and GMC vehicles. This key also has a high security key blade, a preventive measure against ignition picking and key duplication. The key blade will need to be cut by a locksmith or automotive professional.
Product Features:
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Product Features:
- Replacement Transponder Key for Buick, Chevrolet, & GMC Vehicles with
- Contains a transponder chip for enhanced security
- Key blade ready for cutting and pairing
Dorman – KEYLESS ENTRY REMOTE (Part No.99427ST)
from
$174.99
KEYLESS ENTRY REMOTE
Dorman – Help – Keyless Entry Remote 4 Button (Part No.99447)
from
$93.99
This keyless entry remote is designed to match the function of the original key fob on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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
- Application-specific – this key fob is engineered for compatibility with specified vehicles
- 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
Dorman – KEYLESS ENTRY REMOTE (Part No.99429ST)
from
$154.99
KEYLESS ENTRY REMOTE
Popular 2021 GMC Terrain Keys Categories
Most Popular Alarm and Keyless Entry Transmitter for 2021 GMC Terrains
Enhance your 2021 GMC Terrain with this popular Alarm and Keyless Entry Transmitter we have in stock, for $174.99.
Dorman – KEYLESS ENTRY REMOTE (Part No.99427ST)
from
$174.99
KEYLESS ENTRY REMOTE
Best-Selling 2021 GMC Terrain Vehicle Key
Upgrade your Terrain with our best-selling Vehicle Key.
iKeyless – Buick/Chevrolet/GMC Transponder Key (Part No.GMKEY800)
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 Philips 46 crypt chip and has a wide range of compatibilities with multiple Buick, Chevrolet, and GMC vehicles. This key also has a high security key blade, a preventive measure against ignition picking and key duplication. The key blade will need to be cut by a locksmith or automotive professional.
Product Features:
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Product Features:
- Replacement Transponder Key for Buick, Chevrolet, & GMC Vehicles with
- Contains a transponder chip for enhanced security
- Key blade ready for cutting and pairing
FAQs for 2021 GMC Terrain Keys
What are the best-selling Keys for 2021 GMC Terrains?
Out of 2 Keys that fit 2021 GMC Terrains, the following parts are the top sellers:
- Buick/Chevrolet/GMC Transponder Key (12479013) – $35.99
- KEYLESS ENTRY REMOTE (50182914) – $174.99
What’s the price range for 2021 GMC Terrain Keys?
The prices of Keys for the 2021 GMC Terrain range from $35.99 up to $174.99 for the most premium parts.
What is the average price of a Key for a 2021 GMC Terrain?
The average price for Keys for the 2021 GMC Terrain is $105.49. 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 GMC Terrain model years?
What are the cheapest Keys for my 2021 GMC Terrain?
The cheapest 2021 GMC Terrain Keys we carry are:
- Buick/Chevrolet/GMC Transponder Key (12479013) – $35.99
- KEYLESS ENTRY REMOTE (50182914) – $174.99
Does Advance Auto Parts sell Keys for any other 2021 GMC models?
Yes. We stock Keys for 7 other popular 2021 GMC models. Some of the most popular are 2021 Canyon Keys, 2021 Savana 3500 Keys, 2021 Savana 4500 Keys, 2021 Sierra 1500 Keys, and 2021 Sierra 2500 HD Keys.
What types of Keys do you sell for my 2021 GMC Terrain?
As of 11/2/25, these are some of the most in-demand types of Keys for a 2021 GMC Terrain:
Can I get help with 2021 GMC Terrain Key orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Keys and more.
What is your return policy for GMC Terrain Keys?
Advance Auto Parts keeps returns simple. For new GMC Terrain Keys and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.