Peugeot 308 Key Fob Problems and How to Fix Them
If your Peugeot 308 key fob has stopped working after a few days it could be due to a dead coin battery, water damage and receiver module issues or a damaged electronic chip. peugeot keys are all easy fixes that can get your car back to speed in a matter of minutes!

Car keys can also fail due to the fact that the blade on the key gets worn. You can easily fix this issue by visiting your local Car Key Man Auto Locksmith to replace the blade.
Battery
The key fob inside your Peugeot 308 may die or become weak enough to not send a strong signal. This can cause the key fob to stop working and prevent you from locking and opening the doors or starting your engine. To fix this issue, you'll have to replace the battery inside the key fob.
You can purchase a new battery at an auto parts shop, or at your local hardware store. Make sure that the battery is brand new and not on the counter for too long. A new battery will have greater capacity and will be able to transmit a stronger signal to the car.
After replacing the battery, try unlocking the doors and locking them with the key fob. If the doors won't open, the problem is likely in the car's receiver module which can be programmed by your local Peugeot dealer.
The chip inside the key fob might be damaged. You could 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 become worn down over time especially if your key fob is exposed to water for lengthy periods of time, such as submerging it in the ocean at the beach. To avoid this happening, it's important to keep your key fob safe from moisture and never let it come into contact with water.
Water Damage
Don't let go of your key fob if it gets wet, regardless of whether you slipped into a pool or fumbled into a puddle. The key fob is protected by rubber seals, however, prolonged exposure to water may affect the electronic chip. Since water is a good conductor, any water that gets inside the key fob could result in a series of short circuits that eventually ruin the chip. After removing the batteries clean the contact surfaces with isopropyl and then dry them completely before putting them back in.
Your Peugeot 308 may not start due to the battery being dead. Jumper cables are an excellent way to restart the engine if you own an additional car. If the battery is causing the problem and it is not working, it should be replaced.
A bad receiver in the car could also block it from receiving the signal from the keyfob. The key fob may be damaged or there might be a problem with the antenna, wiring or even the key fob itself. If you have a new key fob, it may require to be programmed for the vehicle. If you are unable to fix the problem, contact an expert technician. A trained technician will be able determine the issue quickly and resolve it in a timely manner.
Radio Interference
Signs like key fobs not being recognized or with a limited range usually indicate that there is an interference in the system. This is either radiated or conducted, with the latter resultant from power supply cables and speakers wiring that are too close to electrical components. In general, rerouting cables and moving them away from these components will fix the problem.
It's unlikely someone is watching the key fob's signal in an attempt to steal your vehicle however it is possible that radio interference has ruined the signal. This is an easy issue to repair.
If your key fob is not being recognized by the system, you can try replacing the battery. Make sure the battery is the right size and type. A wrongly sized battery can cause damage to the fob.
These devices can interfere with the key signal if they are using the same radio frequency. It is recommended not using these devices on your key fob.
Pairing Issues
A car's remote keyless entry system includes an antenna that receives radio frequency signals from the key fob. It is not possible to start your vehicle if the receiver is not functioning properly even if your key fob is in good working order and can be reprogrammed. The issue can be caused by a variety of ways, including by an inoperative battery on the coin-cell or water damage. The receiver may also be malfunctioning due an internal or software issue or damage to the key itself.
One of the most common reasons why your Peugeot 308 key fob doesn't work is that the battery inside has gone out of service. You can easily replace this by a new battery however, it is essential to select the correct battery for your key fob. It is best to choose a battery that is the same size in terms of voltage, size, and specifications as the original.
Another reason that the reason why your Peugeot 308 key fob might not be working is because it is connected to a different car. This can happen if you have given your key fob to someone else or when the key has been used to unlock and start other vehicles. This can be solved by reprogramming the key fob using an OBDII scan. This scanner will typically ask you for specific details about your vehicle, for example the VIN or engine type, so it's crucial that you enter this information correctly.