2017 GMC Sierra Key Fob Double Battery: A Comprehensive Guide

The 2017 Gmc Sierra Key Fob Double Battery setup can sometimes be confusing. This guide will cover everything you need to know about the 2017 GMC Sierra key fob, from battery replacement to troubleshooting common issues. We’ll explore why there are two batteries, how to change them, and address common problems like reduced range or unresponsiveness.

Understanding the 2017 GMC Sierra Key Fob Batteries

Why does the 2017 GMC Sierra key fob have two batteries? One battery powers the keyless entry system (allowing you to lock and unlock your vehicle remotely), while the other powers the remote start function. This dual-battery system ensures that even if one battery dies, you can still access your vehicle. It’s a smart design feature that provides redundancy and convenience.

Key Fob Battery Types and Lifespan

The keyless entry typically uses a CR2032 battery, a common type found in many small electronics. The remote start function often utilizes a CR2450 battery, slightly larger than the CR2032. Both batteries typically last between 2-5 years, depending on usage and environmental factors. Factors that can reduce battery life include frequent use, extreme temperatures, and physical damage to the key fob.

Replacing the 2017 GMC Sierra Key Fob Batteries: A Step-by-Step Guide

Replacing the batteries in your 2017 GMC Sierra key fob is a simple process that can be done at home without any special tools. Here’s a step-by-step guide:

Locate the release button: On the back of the key fob, look for a small release button or slot.
Separate the key fob halves: Press the release button and gently separate the two halves of the key fob. You may need to use a small flathead screwdriver to assist in this process.
Identify the batteries: Once the key fob is open, you’ll see the two batteries in their respective compartments.
Remove the old batteries: Carefully pry out the old batteries using your fingernail or a small flathead screwdriver. Be careful not to damage the battery terminals.
Insert the new batteries: Place the new batteries in their corresponding compartments, ensuring the positive (+) side faces up, as indicated in the key fob housing.
Reassemble the key fob: Snap the two halves of the key fob back together until you hear a click.
Test the key fob: Try locking and unlocking your vehicle, as well as testing the remote start function, to ensure the new batteries are working correctly.

2017 GMC Sierra Key Fob Battery Replacement Steps: Visual Guide

Troubleshooting Common Key Fob Issues

Sometimes, even with new batteries, your key fob might not function correctly. Here are some common issues and how to address them:

Reduced range: If your key fob only works from a very short distance, the battery might be weak or there could be interference from other electronic devices. Try replacing the battery first.
Unresponsiveness: If your key fob doesn’t respond at all, ensure the batteries are installed correctly and are fresh. If the problem persists, there may be a more serious issue with the key fob itself and you may need to consult a dealer.
Intermittent function: If your key fob works sometimes but not others, this could indicate a loose connection inside the key fob or a faulty battery. Try cleaning the battery contacts and reassembling the fob.

“Key fob issues can often be resolved with simple troubleshooting steps, like replacing the batteries or checking for interference,” says automotive expert, John Miller, Senior Technician at Miller’s Auto Repair. “However, persistent problems may require professional diagnosis.”

Conclusion

The 2017 GMC Sierra key fob double battery system is designed for convenience and reliability. Understanding how it works and how to replace the batteries can save you time and frustration. By following this guide, you can keep your 2017 GMC Sierra key fob functioning perfectly. Remember to always use the correct battery types for optimal performance.

FAQ

How long do 2017 GMC Sierra key fob batteries last? Typically 2-5 years.
What type of batteries does the 2017 GMC Sierra key fob use? CR2032 and CR2450.
Can I replace the batteries myself? Yes, it’s a simple DIY process.
What if my key fob still doesn’t work after replacing the batteries? Consult a dealer or automotive technician.
How can I extend the life of my key fob batteries? Avoid extreme temperatures and unnecessary button presses.
Why does my key fob have reduced range? Weak battery, interference, or a faulty key fob.
Where can I buy replacement batteries for my 2017 GMC Sierra key fob? Most auto parts stores, electronics retailers, and online marketplaces.

Common Scenarios and Questions:

Scenario: Key fob not working at all. Question: Are the batteries installed correctly? Are they new?
Scenario: Key fob only works close to the vehicle. Question: Is the battery weak? Is there interference from other electronic devices?
Scenario: Remote start not working, but keyless entry is fine. Question: Is the CR2450 battery dead?