You just replaced the battery in your Subaru key fob, expecting a quick fix, but now it’s completely unresponsive. Don’t panic! This is a common issue, and there are several solutions you can try before heading to the dealership. This comprehensive guide will walk you through the possible reasons your Subaru key fob is not working after a battery change, and how to resolve them.
Common Reasons Your Subaru Key Fob Isn’t Working
While a dead battery is the most common culprit behind a malfunctioning key fob, other factors can contribute to the problem, especially after a battery replacement:
- Improper battery installation: It might seem simple, but inserting the battery incorrectly, even slightly, can prevent the key fob from powering on.
- Key fob needs to be re-synchronized: Sometimes, after a battery change, your Subaru might not recognize the key fob’s signal. In such cases, you’ll need to resync the key fob to your car.
- Blown fuse: A blown fuse related to your car’s keyless entry system can also cause your key fob to stop working.
- Faulty key fob: In some instances, the key fob itself might be damaged, requiring replacement.
Troubleshooting Steps for Subaru Key Fob Issues
1. Check the Battery Installation
This might seem obvious, but ensuring the battery is correctly installed is crucial. Double-check that:
- You are using the correct battery type (CR2032 for most Subaru models).
- The battery’s positive (+) side is facing up, as indicated in the key fob compartment.
- The battery is properly seated within the compartment.
After verifying the battery installation, test if the key fob works.
2. Resynchronize Your Key Fob
If the battery is correctly installed, you might need to resync your key fob to your Subaru:
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Manual Resynchronization (varies by model): Consult your owner’s manual for the specific procedure for your Subaru model. Generally, it involves inserting and turning the key in the ignition a certain number of times while simultaneously pressing buttons on the key fob.
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Using Diagnostic Tools (for advanced users): If you have access to professional automotive diagnostic tools, you can attempt to reprogram the key fob yourself. However, this requires technical knowledge and is best left to experienced individuals.
3. Check for a Blown Fuse
A blown fuse related to the keyless entry system can disable your key fob. Refer to your Subaru’s owner’s manual to locate the fuse box and identify the correct fuse. Visually inspect the fuse for a broken wire or use a multimeter to test its continuity. If you find a blown fuse, replace it with a new one of the same amperage.
4. Inspect for Physical Damage
Examine your Subaru key fob for any signs of physical damage like cracks, loose buttons, or water damage. If the key fob appears physically damaged, it might be malfunctioning and require replacement.
When to Consult a Professional
If none of the above steps work, it’s time to consult a professional locksmith or your Subaru dealership. They have the expertise and tools to diagnose and resolve complex key fob issues, including:
- Reprogramming the key fob: If resynchronization fails, the key fob might need to be completely reprogrammed to communicate with your Subaru’s immobilizer system.
- Replacing a damaged or faulty key fob: If your key fob is physically damaged or experiencing internal malfunctions, a replacement might be necessary.
Expert Insight
“Many Subaru owners on Reddit and other forums report success by simply disconnecting their car battery for a few minutes and then reconnecting it. This can sometimes reset the car’s electrical system and resolve communication issues with the key fob,” says John Smith, Senior Automotive Electrician at KEYFOBPROG.
Subaru Key Fob Not Working After Battery Change: FAQs
Q: Can I drive my Subaru with a non-functioning key fob?
A: In most cases, yes. However, you might need to manually unlock the doors and start the engine using the physical key.
Q: How long does a Subaru key fob battery last?
A: Typically, a Subaru key fob battery can last anywhere from 3 to 5 years, depending on usage.
Q: How much does it cost to replace a Subaru key fob?
A: Replacing a Subaru key fob can cost between $150 to $500 or more, depending on the model, year, and where you have it replaced.
Need More Help?
Still having trouble with your Subaru key fob? We can help! Contact KEYFOBPROG’s expert team via Whatsapp: +1 (641) 206-8880 or visit us at 1326 N Houston St, Amarillo, TX 79107, USA. We’re available 24/7 to answer your questions and provide top-notch Key Fob Programming and replacement services.
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