Is your 2018 Toyota Corolla key fob not working as reliably as it used to? A weak or dead battery is often the culprit. This guide will provide you with essential information about replacing the battery in your 2018 Toyota Corolla key fob, ensuring you can regain full functionality and convenience.
Key Fob Compatibility:
This information applies specifically to the following vehicles:
- TOYOTA Corolla iM 2017 2018
- SCION iM 2017 2018
Key Fob Specifications:
Understanding your key fob’s specifications is crucial for battery replacement and ensuring compatibility if you ever need a replacement fob. Here are the key details for your 2018 Toyota Corolla iM / Scion iM flip key fob:
- FCC ID: HYQ12BFA
- Frequency: 315 MHz
- Chip ID: Texas ID 4D Letter H
- Part Number: 89070-12C20 / 8907012C20
- ILCO C/R: AX00014750 (FLIP-TOY-3B1)
- Keyway: LXP90 (Reference for key blade available here)
- Battery Type: CR1620 (Find replacement batteries here)
- Reusable: Yes
Replacing Your Key Fob Battery:
The 2018 Toyota Corolla key fob uses a CR1620 battery. This is a common and readily available coin cell battery. You can purchase a replacement CR1620 battery at most drugstores, supermarkets, and online retailers. Replacing the battery is a straightforward process that you can typically do yourself, potentially saving you time and money compared to visiting a dealership.
While specific step-by-step instructions for battery replacement might vary slightly depending on the exact key fob design, the general process usually involves:
- Locating a small notch or opening on your key fob casing.
- Using a small flathead screwdriver or a similar tool to gently pry open the key fob.
- Once open, carefully remove the old CR1620 battery.
- Insert the new CR1620 battery, ensuring the polarity (+ and -) is correct.
- Snap the key fob casing back together securely.
Key Fob Programming:
In most cases, replacing the battery in your 2018 Toyota Corolla key fob will not require reprogramming. The key fob should continue to work as expected after a battery replacement. However, if you experience issues after replacing the battery, or if you are replacing the entire key fob, programming might be necessary.
For programming a new key fob, it is generally recommended to consult a professional locksmith. Automotive locksmiths have the specialized tools and expertise to program key fobs for most makes and models, including Toyota. You can find a local locksmith here.
While some older vehicles may offer DIY programming procedures, newer models like the 2018 Toyota Corolla often require professional programming. It is always best to confirm with a locksmith for accurate programming information and to get a quote for their services.
Important Notes:
- Compatibility is Key: Always verify that the FCC ID and Part Number of your original key fob match the replacement to ensure compatibility.
- Professional Programming: For key fob programming, especially for newer vehicles, a professional locksmith is usually required.
- Battery Freshness: When purchasing a replacement battery, check the expiration date to ensure you are getting a fresh battery for optimal performance and longevity.
By understanding your 2018 Toyota Corolla key fob and how to replace its battery, you can maintain the convenience and security of your vehicle’s keyless entry system.
