Experiencing issues with your 2018 Toyota Corolla key fob? A common culprit is often a low or dead battery. If you’re finding your key fob is becoming less responsive, or not working at all, replacing the battery is the first and easiest step to take. This guide will walk you through the process of troubleshooting and replacing your 2018 Corolla Key Fob Battery, and what to do if a new battery doesn’t solve the problem.
One common scenario many 2018 Corolla owners face is a key fob that suddenly stops working. You might press the buttons to lock or unlock your doors, or to activate the panic alarm, and nothing happens. Before assuming a more complex issue, consider the simplest fix: the battery. Key fobs rely on small batteries to send signals to your vehicle, and like any battery, these will eventually need replacing.
Replacing the battery in your 2018 Corolla key fob is a straightforward process you can typically handle yourself. You’ll need a small flathead screwdriver and a replacement battery, usually a CR2032 type – it’s always best to double-check your owner’s manual or the old battery to confirm the correct type.
To replace the battery:
- Locate the notch: On the back of your key fob, you should find a small notch or seam.
- Pry it open: Use the flathead screwdriver to gently pry open the key fob casing at the notch. Be careful not to apply too much force to avoid damaging the plastic.
- Open the case: Once you’ve gently pried it, the key fob case should split open, revealing the battery compartment.
- Remove the old battery: Take out the old, dead battery. Note the orientation of the battery (+ side up or down) before removing it.
- Insert the new battery: Place the new CR2032 battery into the compartment, ensuring it’s in the correct orientation.
- Close the case: Carefully snap the key fob case back together until it’s securely closed.
After replacing the battery, test your key fob to see if it now operates correctly. If it does, you’ve successfully solved the problem! However, sometimes, even with a new 2018 corolla key fob battery, you might still encounter issues.
In some rare cases, like one experienced by a car owner, even after a battery replacement, the key fob might still not work. This could be due to the key fob becoming “unpaired” from your 2018 Corolla. This means the connection between your car and the key fob has been lost. While less common, this unpairing can sometimes occur spontaneously, or potentially if buttons are pressed accidentally for an extended period, especially while in a pocket.
If your 2018 corolla key fob is still not working after a battery change, reprogramming or re-pairing the key fob to your vehicle might be necessary. While some dealerships may charge for this service, there are often more affordable alternatives. Places like Batteries Plus, or even some local locksmiths or auto parts stores, may offer key fob programming services. These services can often diagnose if the fob is still transmitting a signal and attempt to re-pair it to your car.
Before immediately assuming you need a new key fob, exploring reprogramming is a wise step. It can save you the expense of a new fob and the associated programming fees for a replacement. Starting with a simple battery replacement for your 2018 Corolla key fob is always the best first step. If that doesn’t resolve the issue, consider professional reprogramming services before investing in a new key fob.
