2018 Chevy Cruze Key Fob Battery

The 2018 Chevrolet Cruze, like many modern vehicles, utilizes a key fob for remote locking, unlocking, and starting the vehicle. This key fob operates on battery power, and understanding the type of battery it requires and how to replace it is essential for Cruze owners. A dead or dying key fob battery can lead to inconvenience and prevent access to vehicle features.
Identifying the Correct Battery Type
The 2018 Chevy Cruze key fob typically uses a CR2032 button cell battery. This is a common type of coin-shaped battery widely available at drug stores, supermarkets, auto parts stores, and online retailers. It's crucial to confirm this battery type before purchasing a replacement. The battery type is often indicated on the battery itself and may also be listed in the vehicle's owner's manual.
To be absolutely certain, it's recommended to open the key fob and visually inspect the existing battery. This will allow you to verify the battery type and ensure you purchase the correct replacement. Using the wrong battery type can damage the key fob or prevent it from functioning correctly.
Must Read
Tools Required for Battery Replacement
Replacing the key fob battery on a 2018 Chevy Cruze is a relatively simple process that requires minimal tools. The following items are typically needed:
- A new CR2032 battery.
- A small flathead screwdriver or a similar tool for prying open the key fob. A plastic pry tool is preferred to minimize the risk of scratching the key fob casing.
- A soft cloth or paper towel to protect the key fob surface during disassembly.
Having these tools readily available will streamline the battery replacement procedure and minimize the risk of damaging the key fob.
Step-by-Step Battery Replacement Procedure
The following steps outline the procedure for replacing the battery in a 2018 Chevy Cruze key fob:

Step 1: Locate the Key Fob Release
Examine the key fob for a small release button or indentation. This release mechanism allows you to separate the key fob halves or access the battery compartment. The location of this release may vary slightly depending on the specific key fob design.
Step 2: Open the Key Fob
Press the release button or use the small flathead screwdriver (or plastic pry tool) to carefully pry open the key fob casing. Insert the screwdriver into the designated slot and gently twist to separate the two halves. Exercise caution to avoid damaging the plastic casing. Work slowly and apply steady pressure.
Step 3: Access the Battery Compartment
Once the key fob is open, locate the battery compartment. The CR2032 battery will be visible within this compartment. Note the orientation of the battery – the positive (+) side and the negative (-) side. This is crucial for installing the new battery correctly.

Step 4: Remove the Old Battery
Carefully remove the old battery from the compartment. You may need to use the small flathead screwdriver or a similar tool to gently pry the battery out. Avoid using excessive force, as this could damage the battery contacts or the key fob circuitry.
Step 5: Install the New Battery
Insert the new CR2032 battery into the compartment, ensuring that the positive (+) side is facing the correct direction (as noted in Step 3). The battery should snap into place securely. Double-check the battery orientation before proceeding.
Step 6: Reassemble the Key Fob
Carefully align the two halves of the key fob casing and press them together until they snap securely into place. Ensure that all the edges are properly aligned and that there are no gaps. The key fob should feel solid and secure.

Step 7: Test the Key Fob
After reassembling the key fob, test its functionality by pressing the lock, unlock, and other buttons. Verify that the vehicle responds accordingly. If the key fob does not work, double-check the battery orientation and ensure that the battery contacts are clean and making good contact.
Troubleshooting Common Issues
If the key fob does not function correctly after replacing the battery, consider the following troubleshooting steps:
- Verify Battery Orientation: Ensure that the battery is installed with the correct polarity (+/-). Incorrect orientation is a common cause of malfunction.
- Check Battery Contacts: Inspect the battery contacts within the key fob for dirt, corrosion, or damage. Clean the contacts with a cotton swab and a small amount of isopropyl alcohol if necessary.
- Ensure Secure Connection: Make sure the battery is securely seated in the compartment and that the contacts are making good contact with the battery.
- Resynchronize the Key Fob: In some cases, the key fob may need to be resynchronized with the vehicle after a battery replacement. Consult the vehicle's owner's manual for instructions on how to resynchronize the key fob. This usually involves a specific sequence of button presses or actions performed within the vehicle.
- Consider a Faulty Key Fob: If the key fob still does not function after troubleshooting, it's possible that the key fob itself is faulty and may need to be replaced or repaired by a qualified technician.
Preventative Maintenance and Battery Life
To prolong the life of the key fob battery and prevent unexpected failures, consider the following preventative measures:

- Avoid Extreme Temperatures: Do not leave the key fob in direct sunlight or in extremely cold temperatures, as this can shorten battery life.
- Store Properly: When not in use, store the key fob in a cool, dry place.
- Replace Battery Promptly: If you notice that the key fob's range is decreasing or that it is becoming less responsive, replace the battery as soon as possible.
- Consider a Spare Battery: Keep a spare CR2032 battery on hand so you can replace the battery immediately when needed.
The lifespan of a key fob battery can vary depending on usage and environmental factors. However, a CR2032 battery typically lasts for one to three years under normal conditions. Regular preventative maintenance can help maximize battery life and ensure reliable key fob operation.
Cost Considerations
The cost of a CR2032 battery is relatively inexpensive, typically ranging from a few dollars to several dollars depending on the brand and retailer. Purchasing batteries in bulk can often result in cost savings.
While replacing the battery yourself is a cost-effective solution, having a dealership or automotive service center replace the battery will incur additional labor charges. However, this option may be preferable for individuals who are not comfortable performing the replacement themselves or who prefer the peace of mind of having a professional handle the task.
Summary
Maintaining a functional key fob battery in your 2018 Chevy Cruze is critical for convenient vehicle access and operation. Knowing the correct battery type (CR2032), understanding the replacement procedure, and addressing potential troubleshooting issues empowers owners to handle this routine maintenance task efficiently. Proactive battery replacement prevents inconvenient lockouts and ensures continued functionality of your key fob features.
