How to Change a Dead Volvo C30 Key Fob
The Volvo C30 is an excellent car with only a few minor flaws. The two front seats are extremely comfortable, however the rear seats aren't as comfortable and the cargo space is small.
If your Volvo key won't turn, it could be due to a number of issues. Certain keys require programming. This should only be programmed by a professional or an automotive locksmith.
How do I Change the Key Blade
If your Volvo key fob is not working due to batteries that are dead, you may still be in a position to unlock your car with the mechanical blade inside. In the majority of new Volvos, there is a hidden mechanical car key that can be used to unlock the driver's door in the event of an emergency when the remote keys don't work. volvo v40 key fob G28 can use the mechanical key even to start your Volvo as long as the sensor is in use when you enter the vehicle.
To open the blade, hold the fob upside-down with the "Volvo Cars Logo" on it. Find the small black button at the bottom left of the key fob. Slide it down and then to your right. The cover will come off and let you access the secret key blade inside.
The key fob is simple to replace. Slide the key fob off of the key ring, then lift the cover's back to reveal the battery. The battery should be an ordinary CR2032 watch-style battery. Take the old battery out and replace it with a new one, taking care not to touch the batteries the' + and - poles by using your fingers. You can find these batteries in a variety of grocery stores as well as pharmacies.
How to replace the battery
The key fob contains a small battery which will probably need to be changed at some point during your ownership of the vehicle. The fob also contains a mechanical key blade that allows you to unlock the door of the driver if the battery in the remote is dead or keys are lost.
You can easily replace the battery, but you must be careful not to harm the metal contacts inside the back cover. A small flathead screwdriver or a pry bar tool made of plastic can be used to pry off the corners of the cover. After removing the cover you can change the battery by putting in a new silver button-cell (CR 2430 3-volt) with the "+", positive side facing downwards, and the "" negative side toward you.
The blade of the key can be fitted into the fob when the battery has been replaced. By pressing the unlock button, you will disable the alarm and open the driver's door. Pressing it twice should unlock all the doors and open the tailgate, if you have one installed on your vehicle.

Most pharmacies and grocery stores sell batteries to replace. They are typically sold as watch batteries, and generally contain a list of numbers printed on the battery to help you identify it.
How to Change the Ignition Cylinder
Ignition cylinders play a crucial role in allowing your Volvo to work properly. They provide power to various parts of your car, and help to start it. As time passes, they'll wear out and require replacement. If you notice that your Volvo is having difficulty getting started or stops during driving, then you may need to replace the cylinder that controls your ignition.
If you're lucky, it could just be something you did wrong or made a mistake. You might not have removed the key completely, or it could be stuck inside the lock. You can try to get rid of the key by moving it around and shaking it gently. Be careful not to apply too high pressure, as it could break the steering wheel or the ignition switch.
The ignition switch could be defective. This switch is used dozens of times every day, so it's no surprise that over time, it could wear out. In most cases, it will begin to fail in one of the settings that power devices or the ignition system, and then it may slow down. The ignition switch can be unable to function if it's about to fail. It is important to test it immediately.
The technician will check the entire system to find out the root of the issue. They will examine the ignition key, the cylinder and other parts of the security system. If you're driving a brand newer model, they'll examine the wiring to determine whether there's any issues with it.
How to Change the Remote
There's a simple and quick method to replace the battery on your Volvo key fob in the event that it gets dead. You can use a screwdriver that is flat to open the cover on the back of your key fob to replace the battery. You can open the cover of the battery open by pressing the small grey button in the upper right corner of your key fob. After that, you can take off the battery you have and replace it with a new one. This should take just 30 minutes or less.
If you own a more recent Volvo model that features remote window roll down, you may be able to control this feature via your Volvo key fob. You can also utilize the lock button to close the windows and sunroof (if equipped). When you hit the unlock button on the Volvo SUV key fob the alarm will be disengaged and the driver's side door will become unlocked. When you press the button twice it will unlock other doors and even the tailgate.
It's time to change the remote key battery in the event that you see "REMOTE KEY BATTERY LOSS VACUUM" in your car's instrument cluster, or if your locks don't respond when you are within the range. The replacement of the remote key battery is an easy and quick process that can be done within a matter of minutes at home or with a local car dealer.