Test: How Much Do You Know About Jaguar Key Fob? How to Replace a Dead Coin Battery in Your Jaguar XF

The Jaguar Smart Key system allows you to lock your Jaguar quickly and easily. It also has security features, including the ability to "double lock" a vehicle to prevent thieves from breaking windows to gain access.

There are a variety of reasons that the Jaguar XF keyfob may not work. It could be due to a dead or defective coin battery, signal interference, and a malfunctioning electronic chip.

Dead coin battery

Modern electronic key fobs provide more security and convenience than traditional manual keys. They can lock and unlock your vehicle, switch on the lights and then start the engine. They also come with additional features to make driving easier. They may lose their charge with time. If you've noticed that your Jaguar XF's key fob isn't functioning, it could be due to a dead coin battery. The good news is that replacing it is a simple and simple fix.

The Key Lab will be aware that it's time to get a new battery if the key fob isn't effective in locking and unlocking over long distances or ceases to function altogether. There's also an alert on your Jaguar InControl (r) touchscreen interface saying "Smart key battery low".

To replace the battery To replace the battery, slide the emergency keys blade to take off the fob cover. Then pull the emergency key in order to remove the chrome side bits and to separate the two pieces of the key fob's body. Replace the battery that was used with a new one making sure that you place it with the positive side facing upward.

Water damage

If your Jaguar XF key fob has been exposed to soapy water or has been exposed to salt water, the electronic chip inside may be damaged. This could prevent the key fob from working, causing you to need a new one from your dealer. In this scenario, disassemble your key fob and clean the metal clip that holds it as well as the chip with isopropyl alcohol.

Signal interference could be a cause of a remote control that doesn't work. It could be due to nearby transmitters that operate on the same frequency as your remote control for XF or caused by objects such as trees or buildings. If you move away the remote control will continue to function.

Your Jaguar is built to monitor itself constantly from engine performance and emissions to the lights and brakes. This means that if it starts to run out of battery power, you'll get warnings. One of these is a decrease in the range of your key fob and another warning message that reads "SMART KEY BATTERY LOW." It is recommended to replace the Jaguar XF key fob battery as soon as you can to avoid these issues.

Faulty battery contacts

Jaguar key fobs come with many more features than traditional mechanical keys. They are also more sophisticated. However, as with any electronic device, they could eventually wear out or cease working completely. If the lock button on your Jaguar key fob starts to malfunction, it is likely that the battery will need to be replaced.

The majority of auto parts stores sell replacement batteries for Jaguar key fobs. Before you replace the battery ensure that it's an original Jaguar part. This will ensure that it is of the correct size and voltage. The proper handling of the battery is essential, since oils and skin moisture can be transferred to the outer edges, decreasing battery life and corrosion of the contacts.

A Jaguar key fob can be described as a remote control that will unlock the doors of your car, activate the alarm, and open the windows and sunroof. It can also double-lock your vehicle to protect it from thieves. The Jaguar key fob is secured by a metal casing making it hard to break or scratch.

A malfunctioning receiver module

The key fob emits a radio signal at a low-frequency that is detected by a receiver module in the Jaguar. The module receives the signal from your smart-key, and then activates or disarms your security system. It also lets you start your vehicle and control the audio system. The receiver module may fail if faulty. The battery that is 12 volts should be removed by disconnecting both terminals. Take a moment to wait. Reconnect the battery in reverse.

Interference from nearby transmitters or objects using the same frequency is another reason that can be a cause for Jaguar XF keyfob not working. Interference may also prevent the Body Control Module (BCM) from understanding the key signals. You can reprogramme the key fob to allow it to work again by following the instructions in the owner’s manual.

Faulty electronic chip

Jaguar key fobs have electronic transponder chips that are encoded. They receive a unique remote control signal and send it to the car's receiver module. If this receiver module becomes defective, you won't be in a position to use the key fob to unlock or lock your vehicle. Luckily, there are some common causes that you can solve yourself.

Check first that the button on the key fob works. If not, it's possible that the button or contact is worn out. It is also essential to replace the battery properly. Make sure to use a battery with the same dimensions, voltage and specifications as the original. Make sure that the new battery is not brought into contact with salt or water.


If your Jaguar key fob is faulty, it is important to find a professional locksmith who can fix or replace it. This service is expensive but is cheaper than buying a new key fob from the dealer. You can even complete this task yourself if you have the proper equipment.