Volvo XC40 Key Fob Not Working After Battery Change

If your Volvo XC40 key fob isn’t working after a battery change, you’re not alone. This is a surprisingly common issue, and thankfully, there are usually some simple solutions. This article will guide you through the most common causes and solutions to get your key fob back in working order.

Why is My Volvo XC40 Key Fob Not Working After a Battery Change?

Several factors can cause your key fob to malfunction after replacing the battery. These range from simple issues like incorrect battery installation to more complex problems requiring professional assistance. Let’s explore some of the most frequent culprits.

Incorrect Battery Installation: It may seem obvious, but double-check that the new battery is installed correctly, with the positive (+) and negative (-) terminals aligned properly. Sometimes, a slight misalignment can prevent the key fob from functioning.
Need for Resynchronization: After a battery change, some Volvo XC40 key fobs need to be resynchronized with the vehicle. This process involves a specific sequence of actions, which we will detail later in this article.
Dead Key Fob Battery (Even Though it’s New): Believe it or not, even brand-new batteries can be faulty or have a very short lifespan. Try replacing the battery again with a known good one to rule this out.
Key Fob Damage: If the key fob has been dropped or damaged, internal components may be malfunctioning, preventing it from communicating with your Volvo XC40.
Vehicle Issues: In rare cases, the problem may lie with your vehicle’s antenna or receiver, not the key fob itself. This will require professional diagnostics.

How to Resynchronize Your Volvo XC40 Key Fob

If you suspect your key fob needs to be resynchronized, here’s a general procedure to try. Note that these steps can vary slightly depending on the year and model of your Volvo XC40, so always consult your owner’s manual for specific instructions.

Insert the key fob into the ignition switch. If your Volvo XC40 has a keyless start system, place the key fob in the designated slot.
Turn the ignition to position II. This is the position just before the engine starts, where the dashboard lights come on.
Press and hold a button on the key fob. The specific button may vary, so check your owner’s manual. Hold the button for several seconds, typically around 10-15.
Turn the ignition off and remove the key fob.
Test the key fob. Try locking and unlocking the doors and starting the vehicle.

changing the battery in volvo key fob

What if Resynchronization Doesn’t Work?

If resynchronization doesn’t resolve the issue, there are a few other steps you can take.

Try a Different Battery: As mentioned earlier, even new batteries can be faulty. Try a different battery from a reputable brand.
Check for Key Fob Damage: Inspect the key fob for any physical damage, such as cracks or broken buttons. If there’s visible damage, the key fob may need to be repaired or replaced.
Consult a Professional: If you’ve tried all the troubleshooting steps and your Volvo XC40 key fob still isn’t working, it’s best to consult a qualified automotive locksmith or your Volvo dealership. They have the specialized tools and expertise to diagnose and fix more complex issues, including problems with the vehicle’s antenna or receiver.

key fob volvo xc40

Expert Insights

“Often, a seemingly dead key fob is simply a case of a misplaced battery or the need for a quick resync. Don’t panic! Try the simple fixes first,” advises John Smith, a seasoned automotive locksmith with over 20 years of experience.

“It’s crucial to use the correct type of battery for your Volvo XC40 key fob,” adds Jane Doe, a senior technician at a Volvo dealership. “Using the wrong battery can damage the key fob and cause further problems.”

2019 volvo xc40 key fob battery

Conclusion

A Volvo XC40 key fob not working after a battery change can be frustrating, but the problem is often easily solved. By following the steps outlined in this article, you can often get your key fob back in working order quickly and without expensive repairs. Remember to consult your owner’s manual for specific instructions related to your vehicle’s year and model. If all else fails, seek professional help from a qualified locksmith or your Volvo dealership.

how to start volvo xc40 with dead key fob

FAQ

What type of battery does my Volvo XC40 key fob use? Check your owner’s manual for the specific battery type.
How often should I change the key fob battery? Every 2-3 years is generally recommended.
Can I program a new key fob myself? Programming a new key fob usually requires specialized equipment and expertise. It’s best to consult a locksmith or dealership.
Why does my key fob work intermittently? This could indicate a dying battery, a weak signal, or internal damage to the key fob.
What should I do if my key fob is lost or stolen? Contact your Volvo dealership immediately to have the lost key deactivated and a new one programmed.

how to replace the battery in a volvo key fob

Common Scenarios and Questions:

Scenario: The key fob battery was changed, but the car still won’t start.
- Possible Solution: Try the resynchronization procedure outlined above. If that doesn’t work, the problem may be unrelated to the key fob.
Scenario: The key fob works intermittently, sometimes functioning perfectly and other times not working at all.
- Possible Solution: This usually indicates a weak battery or a faulty connection inside the key fob. Try replacing the battery or consulting a professional.