If your 2019 Chevy Silverado key fob is acting up – locking and unlocking intermittently, having a reduced signal range, or completely failing to respond – there’s a good chance the battery is the culprit. Luckily, replacing the key fob battery is a quick and easy fix that you can do yourself in minutes. Let’s walk through how to diagnose a dying key fob battery and how to replace it yourself.
Signs Your 2019 Chevy Silverado Key Fob Battery Needs Replacement
Before you go ahead and replace the battery, it’s best to ensure that the problem actually lies with the battery and not a different issue with the key fob itself or your vehicle’s receiver. Here are some common signs that your key fob battery is the likely issue:
- Intermittent Function: Does your key fob sometimes work and sometimes not? This erratic behavior often indicates a dying battery that can no longer consistently provide sufficient power.
- Decreased Range: Are you finding yourself having to stand closer to your Silverado to lock or unlock the doors? A weak battery will have a reduced signal range.
- Dashboard Warning: Some Silverado models may display a “Key Fob Battery Low” warning message on the driver information center (DIC) when the battery needs replacing.
- Physical Inspection: If you’ve recently replaced your key fob battery and are experiencing problems again, inspect the battery compartment for corrosion or damage.
How to Test Your 2019 Chevy Silverado Key Fob Battery
While the signs above are strong indicators of a low key fob battery, you can test the battery to be absolutely sure. Here’s how:
- Gather Your Supplies: You’ll only need a few things: a small flat-head screwdriver and a voltmeter (or a battery tester if you have one).
- Access the Battery: On the back of your key fob, you’ll find a small slot. Insert the flat-head screwdriver into the slot and gently pry open the key fob to access the battery compartment.
- Test the Battery: Remove the battery from the compartment and use the voltmeter (or battery tester) to check its voltage. A fresh CR2032 battery should have a voltage of around 3 volts. If the voltage is significantly lower, it’s time for a replacement.
How to Replace a 2019 Chevy Silverado Key Fob Battery
Replacing a 2019 Chevy Silverado key fob battery is a straightforward process:
- Open the Key Fob: Use the small flat-head screwdriver to pry open the key fob at the designated slot on the back. Be gentle to avoid damaging the casing.
- Remove the Old Battery: Carefully remove the old CR2032 battery from the compartment. Note the battery’s orientation for installing the new one.
- Install the New Battery: Insert the new CR2032 battery into the compartment, making sure it’s facing the correct way (usually positive side facing up).
- Reassemble the Key Fob: Snap the two halves of the key fob back together until you hear a click, indicating it’s securely closed.
That’s it! You’ve successfully replaced your 2019 Chevy Silverado key fob battery.
Programming Your 2019 Chevy Silverado Key Fob
In most cases, replacing the key fob battery will not require you to reprogram the fob. The Silverado is usually able to recognize and sync with the key fob after a battery replacement automatically. However, if you’re still experiencing issues after the battery change or if you replaced the key fob entirely, you might need to program it.
To program your 2019 Chevy Silverado key fob:
- Get in the Vehicle: Sit in the driver’s seat with all doors closed and your new, unprogrammed key fob handy.
- Turn on the Ignition: Insert your working key fob and turn the ignition to the “ON” position, but don’t start the engine.
- Hold the Lock Button: Press and hold the lock button on your working key fob for at least 10 seconds, or until you hear a chime sound.
- Press and Hold on the New Fob: While still holding the lock button on the working fob, also press and hold the lock button on your new key fob for about 30 seconds.
- Release Both Buttons: Release the lock buttons on both key fobs.
- Turn Off the Ignition: Turn the ignition to the “OFF” position and remove the key.
- Test the New Key Fob: Try using the new key fob to lock, unlock, and start your Silverado.
Tips to Prolong Key Fob Battery Life
You can take a few proactive steps to help extend the life of your new key fob battery:
- Avoid Extreme Temperatures: Extreme heat and cold can shorten battery life. Don’t leave your key fob in direct sunlight or exposed to freezing temperatures for prolonged periods.
- Use Protective Covers: A key fob cover can provide a layer of insulation against temperature fluctuations and protect it from physical damage.
- Check the Battery Regularly: It’s a good idea to proactively check the voltage of your key fob battery every 6 months or so. This can help you catch a dying battery early and avoid getting stranded.
When to Consult a Professional
While replacing your key fob battery is a simple task, there are times when it’s best to seek help from a qualified automotive locksmith or your Chevy dealership:
- Programming Difficulties: If you’re having trouble programming your key fob yourself, a professional can quickly and correctly program it for you.
- Key Fob Damage: If your key fob is physically damaged—the buttons are broken, the casing is cracked, or it got wet—you’ll likely need to have it repaired or replaced by a professional.
Pro Tip from John Miller, Certified Automotive Technician: “Many people overlook the importance of using a high-quality CR2032 battery for their key fobs. Cheaper batteries may be tempting, but they often have a shorter lifespan. It’s worth spending a little extra for a reputable brand to ensure optimal performance and longevity.”
By following these steps, you can easily troubleshoot and replace your 2019 Chevy Silverado key fob battery, keeping you in control and on the go.
