Peugeot 208 Key Replacement
It is better to leave the replacement of Peugeot keys for 208 to auto locksmiths equipped with the equipment and know-how. They can create and program keys faster and cheaper than dealerships.
A dead battery for your coin is most likely to be at fault when your key fob stops locking or unlocking doors. There are many other reasons that the key might be malfunctioning.
Dead Coin Battery
A dead coin battery will stop your Peugeot 208 from locking and unlocking, and also preventing it from starting the engine. If this is the situation, you'll need make use of the backup starting procedure that is detailed in your vehicle's owner manual.
The spark plugs could also be worn out. The spark plugs light the fuel to start the engine. However, they have a limited time of life. They'll eventually break down if they aren't used frequently enough.
There is a straightforward solution to this issue. The best option is to check the voltage of your car battery with a multimeter. If it is below 11.5 volts then you must replace it. It is also essential to clean the battery's contacts if it has corrosion. You can do this by lifting the rubber covers that protect both battery terminals and using a wire brush to remove any corroded parts of the battery. Then, reconnect the cables to the positive and negative poles.
Water Damage
If your 208 doesn't start and the battery has not been replaced, you must inspect the spark plugs. It could be that they are simply too dirty and don't spark. This can be easily corrected by cleaning the spark plugs in an workshop.
Peugeot automobiles use transponder keys that works with the car's immobiliser system. This ensures that only the correct key can turn the engine. If the chip inside the Peugeot key is damaged, it will not send the correct signal to the vehicle.
This is a typical issue that is often caused by water damage. This is a typical issue in warmer climates where the vehicle is exposed to rain or snow. If this is the case, call a reputable auto locksmith who has all the tools and equipment needed to modify the new key. They will also have all the latest technology and machinery required to make the Peugeot smart key. The process should not take more than 15 minutes.
Contacts with the battery may be damaged.
Peugeot changed from the old carbon-encased transponder chips and introduced a new type of chip that uses electronic components in a circuit board. This new system works great when it's brand new, however, over time, the circuit boards begin to deteriorate and stop working properly.
This can prevent the immobiliser chip from working, so your car won't start. Contact an Peugeot specialist, or a locksmith if this is the case.
Another issue that is common is when the battery in the key fob gets depleted, which causes the key blade to stop feeding into the lock. A locksmith in your car will replace the battery and then cut a new blade for you. This is a quick fix.
peugeot keys G28 Car Keys could be that the receiver module is faulty if your Peugeot key fob stops working after being dropped on the floor, exposed to a sudden storm or accidentally washed. The receiver is responsible for sending radio frequency signals to an on-board computer, which is responsible for controlling the centralized locking system of your Peugeot vehicle.
Rubber seals on the key fob prevent water from reaching its electronic chip. Water can damage the chip when it is exposed to the water for an extended period of time. The high salt content in the ocean water or pool can cause damage to the key fob when it is submerged.
The module must be replaced if your Peugeot spare key is no longer working. This can only be completed by an experienced auto locksmith or Peugeot specialist. Peugeot keys, unlike other cars, are secured by an immobilizer system. This requires the proper programming to allow the car to start. This is why you must go with a knowledgeable Peugeot locksmith with the task of programming and creating the replacement.
Computer on-board is not working properly
The computer on board of your Peugeot is responsible many systems in your car, including airbags and power windows. The computer on board will display an error code when something goes wrong. The code will be stored in the system until the problem is fixed. This will often require the on-board computers to be replaced.

One of the main causes of the airbag light flashing is loose or corroded connectors in the airbag sensor. This could be due to wear and tear, aging or exposure to salt and moisture. This issue should be addressed as soon you can, as an airbag malfunctioning could pose a risk in the event in the event of an accident.
If you encounter a card not found error on your Peugeot, the key battery inside the key fob may be weak or dead. This will prevent the key fob from transmitting a signal that will disable the immobilizer on your vehicle's standard. Try this by pressing the unlock button on the fob's key, then trying to start your vehicle. If this does not work it is likely that the battery needs to be replaced.