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Peugeot 308 Key Fob Problems and How to Fix Them
If your Peugeot key fob suddenly stopped working it could be due to an unresponsive battery in the coin-cell, water damage, receiver module issues, or a malfunctioning chip. These are all simple solutions and you'll be able to get your car back up to speed in no time!
Car keys can also fail due to the blade getting worn. This is an easy fix when you visit your local Car Key Man Auto Locksmith and let them put in a new key blade for you.
Battery
The key fob battery in your Peugeot 308 can sometimes die or become insufficient to send an effective signal to the car. This can cause the key fob to cease working which prevents you from locking or opening the doors, or even starting your engine. You'll need a new battery for your key fob to repair this.
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 has not sitting on the shelf too long. A new battery has greater capacity and can transmit a stronger signal your vehicle.
After replacing the battery, try unlocking the doors and locking them using the key fob. If the doors don't open it's possible that the receiver module in the car is at fault. The local Peugeot dealer can reprogramme the receiver module.
It's also possible that the key fob's internal chip is damaged. It is possible to cause damage to your key fob when you drop it on the ground, or expose it to water. Rubber seals that protect your chip from moisture may become worn out over time. This is especially true when you expose your key fob to water over long periods of time, for example, submerging it in the ocean or in the ocean. To avoid this you must keep your key fob free of the reach of moisture and away from water.
Water Damage
Don't lose hope on your key fob when it becomes wet, whether you dropped it in the pool or slipped into a Puddle. The key fob is protected by rubber seals however, prolonged exposure to water can harm its electronic chip. Water is a great conductor and any water that comes into the key fob will cause short circuits in series, which will eventually ruin the electronic chip. After taking the battery out, clean its contacts with isopropyl Alcohol and dry it completely before putting it back in.
A dead battery may be the reason that your Peugeot 308 won't start. If you have a spare car, jumper cables can be used to get the engine running again. If the battery is defective and needs to be replaced, it should be replaced.

Another possibility is a malfunctioning receiver in the vehicle, which can block the signal from the key fob. The key fob could be damaged, or there could be an issue with the antenna, wiring or the key fob itself. It may be necessary to program a new keyfob for your vehicle if using one. If you are unable fix the problem, contact an expert technician. A skilled technician will be able diagnose the problem quickly and fix it promptly.
Radio Interference
For example, a key fobs not being recognized or having a limited range of operation usually mean there is a problem with the system. This is either radiated or conducted, with the latter being caused by power supply cables and speaker wiring that is too close to electrical components. Generally, rerouting the cables or moving them further away from these components can solve the issue.
It's unlikely someone is watching your key fob signal in order to steal your vehicle, but it's possible that radio interference has drowned out the signal. This is an easy issue to fix.
If peugeot key that are not recognized, try using a fresh battery. Also, ensure that the battery is of the correct size and type. Batteries that aren't the correct size could damage your battery.
Some alarm systems that are sold on the market and radar detectors operate on the same radio frequency as your key fob and could cause them to interfere with your key signals. It is recommended not attaching these devices to your key fob.
Pairing Issues
The remote keyless entry system that is used in the car is equipped with a receiver that receives radio signals from the key fob. You won't be able to start your vehicle if this receiver is malfunctioning even if your key fob is working and can be reprogrammed. This problem can be caused in a number of ways, including by the battery of the coin-cell being dead or water damage. The receiver may also be malfunctioning due an error in the software or internal damage to the key itself.
One of the most common reasons for why your Peugeot 308 key fob doesn't work is that the coin battery inside has gone out of service. You can easily replace this with a brand new battery however, it's important to get the right battery for your key fob. It is recommended to use an item that has the same size as well as voltage and specifications as the original.
Another reason why the reason why your Peugeot 308 key fob might not be working is because it is paired with another vehicle. This can happen if have given your key fob to a person you know or if the key has been used to unlock or start other vehicles. This can be resolved by reprogramming your key fob with an OBDII scan. The tool will ask you for information about your vehicle, such as its VIN or engine type. It is essential that you enter the correct information.