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Peugeot 308 Key Fob Problems and How to Fix Them

If your Peugeot 308 key fob stopped functioning one day, it could be due to a dead battery in the coin or water damage and receiver module issues or a faulty electronic chip. Luckily key replacement are all easy to fix, and you'll have your car back to normal in no time!

The key blade could become worn out and result in an issue with your car key. This can be fixed if you visit your local Car Key Man Auto Locksmith and let them install a new key blade for you.

Battery

The key fob of your Peugeot 308 may die or become weak enough to not send a powerful signal. The key fob might stop working and prevent you from locking or unlocking your doors or starting the engine. To fix this, you'll have to replace the battery inside your key fob.

You'll need to buy the replacement battery from an auto parts store or at your local hardware store. Make sure the battery is brand new and not sitting on the shelf for too long. A brand new battery will have more capacity and will be able to send a stronger signal to the car.

After replacing the battery try unlocking the doors and locking them using the key fob. If the doors aren't unlocking then the receiver module in the car is at fault. The local Peugeot dealer can reprogramme the receiver module.


The chip inside the key fob might be damaged. It is possible to damage your key fob if you drop it on the ground or expose it to moisture. The rubber seals that shield the chip from moisture could get worn out over time, especially if your key ring is exposed to water for long period of time, like when you submerge it in the ocean at the beach. To avoid this occurring, it's crucial to keep your key fob away from moisture and never let it come in contact with water.

Water Damage

If your key fob is soaked, whether you dropped it in the pool or threw it into a puddle don't think it's a loss. While the key fob comes with rubber seals to protect it from water, long-term exposure to water could cause damage to its electronic chip. Since water is such a good conductor and conductor, any water that gets inside the key fob could create a series of short circuits, which could eventually damage the chip. After removing the battery clean the contacts with isopropyl ethanol and dry it completely before putting it back into.

A dead battery could be the reason your Peugeot 308 won't start. If you have a spare vehicle, jumper cables can be used to get the engine working again. If the battery is the issue then it must be replaced.

Another reason could be a malfunctioning receiver in the vehicle, which can hinder it from receiving a signal from the key fob. The key fob may be damaged, or there could be an issue with the antenna, wiring or the key fob itself. If you are using the latest key fob, it may need to be programmed for the vehicle. If you cannot fix the issue on your own then contact an expert technician. A professional who has been trained in the field will be able diagnose the problem quickly, and fix it immediately.

Radio Interference

Interference can trigger symptoms such as a fob that isn't recognized or has a limited range. This can be either radiated, or conducted, with the latter being caused by power supply cables and speakers wiring that are too close to electrical components. Usually, rerouting the cables or moving them further away from these components could solve the problem.

It's unlikely that anyone is listening in on the key fob's signals to take your car away, but it's possible that the signal has been drowned out by radio frequency interference. Fortunately, this is not a problem to repair.

If you are having key fobs that aren't being recognized, try using an entirely new battery. Make sure the battery is the right size and type. Incorrectly sized batteries can damage the fob.

Some aftermarket alarm systems and radar detectors operate on the same radio frequency as your key fob, and this could cause them to interfere with your key signals. It is best to avoid using these devices with your key fob.

Pairing Issues

The remote keyless entry system of cars has an antenna that receives radio frequencies from the key fob. If the receiver has developed issues, you will not be in a position to start your car even if your key fob works and is modified. This issue can be caused in a number of ways, including by a dead coin-cell battery or water damage. The receiver could also be malfunctioning because of a software bug or internal damage to the key.

The battery inside your Peugeot 308 keyfob may have gone out of service. The battery can be easily replaced, however you must be sure it's the correct battery for your key fob. If you use a battery that is not correct, it could cause more problems with the key fob, therefore it is recommended to use the original or a replacement that is identical in size, voltage, and specification.

Your Peugeot 308 keyfob may not work if it is associated with another vehicle. This could be the case if you have given your key fob to a person you know or when the key has been used to unlock and begin other vehicles. This can be solved by reprogramming the key fob using an OBDII scan. The scanner will usually ask you to provide certain details about the vehicle, such as the VIN or engine type, so it's essential to fill in the correct information.