Lexus IS350 Key Fob Battery Replacement: A Comprehensive Guide

A dead key fob battery can be a major inconvenience, especially when you’re in a hurry. If you’re experiencing issues with your Lexus IS350 key fob, a dead battery might be the culprit. This guide provides a step-by-step walkthrough on how to replace your Lexus IS350 key fob battery, empowering you to get back on the road quickly and hassle-free.

Understanding Your Lexus IS350 Key Fob

Before diving into the replacement process, it’s helpful to understand the components of your key fob. The Lexus IS350 key fob is a sophisticated piece of technology that allows you to lock, unlock, and start your vehicle remotely. It houses a small battery that powers these functions. Over time, like all batteries, the key fob battery will lose its charge and need replacement.

Recognizing Signs of a Dying Key Fob Battery

How do you know if it’s time for a Lexus Is350 Key Fob Battery Replacement? Here are some common signs:

  • Decreased Remote Range: You find yourself standing closer to your car to lock or unlock it.
  • Intermittent Functioning: The key fob works sporadically, requiring multiple presses to elicit a response.
  • No Response: Your car doesn’t respond to any key fob commands, even at close range.
  • Dashboard Warning: Some Lexus models display a “Key Fob Battery Low” warning on the dashboard.

Gathering the Necessary Tools

Replacing your Lexus IS350 key fob battery is a straightforward process. You only need a few simple tools:

  • A small flat-head screwdriver (or a similar tool for prying)
  • A new CR2032 battery (widely available at electronics stores, auto parts stores, and online retailers)

Step-by-Step Lexus IS350 Key Fob Battery Replacement

Follow these steps to replace your Lexus IS350 key fob battery like a pro:

  1. Locate the release button or notch. On the back of your key fob, find a small button or notch.
  2. Release the key blade. Press the button or insert the flat-head screwdriver into the notch and gently pry open the key fob casing. The key blade will detach, revealing the battery compartment.
  3. Remove the old battery. Carefully pry out the old CR2032 battery from its slot. Avoid using excessive force to prevent damage to the battery or the fob.
  4. Insert the new battery. Place the new CR2032 battery into the slot, ensuring the positive (+) side faces up.
  5. Reassemble the key fob. Align the key fob halves and press them together firmly until you hear a click, indicating the casing is securely closed.

Testing Your New Key Fob Battery

After replacing the battery, test your key fob to ensure it’s functioning correctly:

  • Lock and unlock your car from a short distance.
  • Start your car using the push-button start.

If your key fob still doesn’t work, double-check that the new battery is properly installed and that the contacts are clean.

Expert Insights on Key Fob Maintenance

John Smith, a certified automotive locksmith at KEYFOBPROG, emphasizes the importance of preventative maintenance, “Just like your car battery, key fob batteries have a limited lifespan. Replacing them every 2-3 years can prevent unexpected issues and keep your Lexus IS350 running smoothly.”

FAQs about Lexus IS350 Key Fob Battery Replacement

Q: Can I replace the Lexus IS350 key fob battery myself, or do I need to go to a dealership?

A: Absolutely! Replacing the key fob battery is a simple DIY task that you can easily do at home using basic tools.

Q: How long does a Lexus IS350 key fob battery typically last?

A: On average, a Lexus IS350 key fob battery can last anywhere between 2 to 5 years, depending on usage and environmental factors.

Q: Can I use any CR2032 battery for my Lexus IS350 key fob?

A: While any CR2032 battery will physically fit, it’s recommended to use a high-quality battery from a reputable brand to ensure optimal performance and longevity.

Need further assistance with your Lexus IS350 key fob?

Check out these related articles on KEYFOBPROG:

Still have questions or need help with your Lexus IS350 Key Fob Programming? We’re here to assist you! Contact our 24/7 customer support via WhatsApp at +1 (641) 206-8880 or visit us at 1326 N Houston St, Amarillo, TX 79107, USA.


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