How to Find a Fiat 500 Spare Key Fiat's iconic Fiat 500 has become a symbol since its relaunch in 2007. The company is now kicking off a larger campaign towards different powertrains with a mild-hybrid version. Replacing the key fob's battery on a Fiat 500 is straightforward and affordable. The Fiat main dealer will hand over the key in 10 days. Fault Diagnosis The key fob is equipped with an electronic chip that communicates with the Fiat immobiliser system to ensure that only authorized vehicles can start the engine. If the transponder chip within your key fob is damaged, it won't be able to connect to the immobiliser unit, and as a result, your car won't start. The good news is that it's feasible to fix a damaged key fob, as long as the chip is not physically damaged. A professional locksmith can help with this issue, and they'll employ the latest technology from dealers to repair the issue quickly and efficiently. It's possible to use an OBD scanner to see whether your device is in communication with the receiver module. This is a fast and simple process that can provide a first indication of the problem. If the OBD scan tool shows that communication between the transmitter and receiver modules isn't working It may be necessary to replace the fob's transmitter module. This is a cost-effective option and should be left to a locksmith. Dead Coin Battery The most common cause of an unresponsive key fob is a dead battery. It's an easy fix that takes only a few minutes. Make sure the key fob is detected by your vehicle. Press the "Lock" and "Unlock" buttons to determine whether they respond. If the key fob's signal is out of range, it might not respond at all or it may only function intermittently. This could be a sign of a defective circuit. In this instance you'll need to refer to the manual of your owner for instructions on how to reprogram the key fob. You can replace the battery by removing the mechanical latch on the back of the fob (see the image below). Then, gently pry the edge of the battery holder away from the switch to take out the old battery. Then, put a new 3 volt battery # CR2032 into the fob assembly, with the "+" side facing towards the cover on the rear of the key fob, and the "-" side facing downwards towards the buttons made of rubber. Water Damage Although the key fob comes with rubber seals that keep water out of the chip inside, it's not waterproof. The key fob should be able to withstand water from a shower or water from a wash, however, submerging it into ocean or pool waters is not recommended. If the key fob is exposed to water and fails to function the device will need to be reset. This process can be done by following instructions in the owner's manual or by bringing it to a professional auto locksmith or an Fiat dealer. Another reason that a fob may stop working is because it's out of distance from your car. Key fobs generally have a range of approximately 30 feet and if they're far from the car, they won't recognize them. The first step is to get closer to your vehicle. If it doesn't work, the key fob battery may need to be replaced. You can find the steps on how to replace the battery in a majority of vehicles on YouTube or by reading the owner's guide. If your key fob looks scuffed and dented, it's time to replace it. Faulty Receiver Module In the more modern versions of Fiat cars, you do not need a physical key to open or start the car. The cars are equipped with keys that transmit an electrical signal to the car to turn on and off the engine. If you've damaged your key fob, a locksmith is able to replace it for you. You can save yourself time and money by entrusting this job to professionals. They can also program a new key to your Fiat. If you are looking for an additional key for your Fiat vehicle, you'll have to give the locksmith some details about your car over the phone. For instance, you will be required to mention the year of production of your car, along with the model's name. This is vital as locksmiths need it to ensure that the new key is compatible with the existing locks. Not all locksmiths can create replacement keys for Fiat cars. Choose a locksmith who has an established track record and expertise in the field. This means that you are sure that the new key will work with your car and you won't be wasting money. Unpaired Key If you have a key fob that isn't functioning, the most likely reason is a dead coin battery. The key fob has metallic clips that keep the battery in place and completes the circuit. If these clips wear out or loose, it could cause contact problems and no power. Replace the battery by purchasing a new one with the same size, voltage and specifications, or get a spare. https://www.thekeylab.co.uk/fiat-car-keys/ is important to dry out the key fob if it was submerged in liquid. Using isopropyl or electronic cleaner is a good way to do this. It is also advisable to take the battery off and clean the circuit board before replacing it. Contacting locksmiths is the best option in case you're unable to find an additional. A locksmith with the ability to reprogram Fiat transponder keys can do it without the need to see the original keys. This is a faster and cheaper solution rather than waiting for the original Fiat key from Italy to arrive. A professional locksmith will have the tools and equipment necessary to complete the replacement as quickly as possible.