One of the best accessories you can get for your 2012 GMC Terrain is the key fob. This accessory will allow you to lock and unlock your car without having to use a key. Plus, it will give you a second way to enter your vehicle, if you lose the key.
Find a dealer
If you have lost your 2012 GMC Terrain key fob and need a replacement, you will need to find a dealer. The average cost of a replacement key is about fifty dollars. However, some dealerships will program your key for free.
Before you go to a dealer, you will need to know the code for your key. This will speed up the process of getting a new one. Most vehicles have a key that can be programmed with a code. Some older cars may have an ignition cylinder that needs replacing.
To determine which code you need to get your key fob, you will need to know the year of your vehicle. Older models will not have a record of the code you need.
You will also need to figure out whether you have a transponder chip in your key. Keys with a transponder require programming. There is a special programming machine at dealers that will let you do this.

2012 GMC Terrain: Disassemble the keyless entry remote
If you have a 2012 GMC Terrain, chances are that you have a remote keyless entry system that is in need of an upgrade. Although this is an easy fix, it will cost you at least $50 for the privilege. So, what are the best options? Luckily, 2012 GMC Terrain has an online Learning and Support page with links to manuals, FAQs and more. Here, you will find the information you need to get your remote keyless entry system back on the road.
There are three steps involved in putting your remote keyless entry system in order. The first is to remove the cover and battery. To do this, you will need a flat-head screwdriver.
The next step involves unscrewing the battery from the circuit board. Taking the battery out will require a small flat-head screwdriver.
Program the keyless entry remote
Using the keyless entry remote for 2012 GMC Terrain is easy. The keyless system includes a remote start function, which works up to 200 feet away. There are also pre-set climate controls that begin running when the vehicle is turned on.
The keyless entry system is available in many new and old GM models. These vehicles include SUVs, trucks and cars. While the process can be confusing at first, you’ll get the hang of it pretty quickly.
To program your keyless entry remote, you must have a working key. You can use one from the car, but you can also buy an emergency key separately. This can be purchased from an auto parts store or from a GM dealer.
Start by unlocking the driver’s side door. A beep should sound. If it doesn’t, you will need to restart the program. After the sequence is finished, you will be able to start the vehicle from the remote.
Install a new battery in the keyless entry fob
A keyless entry fob is a battery operated remote. You can use it to unlock doors and start your car. It is powered by a CR2032 3 volt button cell battery. The keyless entry fob uses one of these batteries in each half of the key.
When the battery dies, you may notice that you have trouble locking and unlocking the vehicle. In this case, you will need to replace the battery. To do this, you will need a CR2032 3 volt battery and a flathead screwdriver.
Before you begin, you will need to find out the correct size and type of battery for your GMC Terrain. This is a fairly easy task. Once you know what type of battery you have, you can find one at your local auto parts store. If you haven’t already, you might want to buy a small case or cover to protect the new battery.
Protect your keyless entry remote
If you have a remote keyless entry system, you may have noticed that it’s not working as it should. The problem could be with the battery, or the remote’s receiver module. There are some simple things you can do to fix it.
If you’re having trouble using your Terrain’s key fob, you need to be sure you’re using the right type of battery. The Terrain’s key fob uses a CR-2032 battery. This type of battery is available at various retail locations. You should be able to replace the battery in a matter of minutes.
When you have a dead battery, you will be unable to start the engine. The on-board electronics will also fail. A good battery should last for two to four years. Typically, you can purchase a new battery at a local auto store for around $5.