Replacing the 2013 Prius key fob battery is a straightforward task that saves significant time and money compared to visiting a dealership. The original key design for the third-generation Prius relies on a small, coin-shaped CR2032 battery to power the remote entry and panic features. Understanding the specific battery type and the precise, simple procedure ensures the key functions correctly without damaging the casing.
Identifying the Correct Battery for Your 2013 Model
The 2013 Toyota Prius uses a standard CR2032 3V lithium coin battery for the key fob. This is a widely available battery size found in most electronics and hardware stores. Confirming this specification is the critical first step before disassembly, as using the wrong voltage or dimension can prevent the key from working or potentially cause damage.
Tools Required for the Replacement
You will need only a few common household items to complete this job successfully. A small flathead screwdriver or a sturdy coin is necessary to pry open the key shell. Additionally, having a pair of tweezers or small pliers helps safely remove the old battery without scratching the interior components. A clean, well-lit workspace is recommended to keep the tiny parts organized.
CR2032 3V lithium battery
Small flathead screwdriver or coin
Tweezers or small pliers
Soft cloth or towel
Step-by-Step Key Disassembly
Begin by locating the small seam on the side of the key fob where the metal key meets the plastic remote body. Insert the flathead screwdriver or coin into this seam and apply gentle pressure to pop the two halves apart. The key is designed to split along this line, so avoid forcing it to prevent cracks in the plastic housing.
Handling the Internal Components
Once open, you will see the battery held in place by a plastic bracket. Note the orientation of the battery, as the positive side (marked with a +) usually faces up. Carefully lift the battery out using tweezers or your fingernail, being mindful of the small circuit board attached to the bracket.
Installing the New Battery
Place the new CR2032 battery into the holder with the positive side facing the correct direction as indicated inside the key fob. Ensure the battery is seated flush against the bracket and is not crooked. Gently press the old battery out and slide the new one into place, verifying that it does not move around loosely.
Reassembling the Key Fob
Align the two halves of the key shell, making sure the circuit board and battery remain in their positions. Press the seam together firmly until you hear a distinct click, indicating that the internal tabs have locked into place. Check that the key buttons are flush and that there are no gaps along the edges.
Testing the Remote and Panic Functions
After reassembly, test the key fob by standing a few feet away from the vehicle and pressing the lock and unlock buttons. The doors should respond immediately, and the panic button should trigger the alarm system. If the remote does not work, open the key again to verify the battery orientation and ensure a solid connection.
