How to Change a Dead Volvo C30 Key Fob
The Volvo C30 is an excellent car, but it has a few minor shortcomings. The two front seats are comfortable, but the rear seats aren't as comfortable and the cargo space is limited.
If your Volvo key won't turn it is likely caused by a variety of issues. Some keys need programming, which is only done by a dealer or auto locksmith.
How to change the key blade
If your Volvo key fob has a dead battery however, you might still be able to unlock your car with the mechanical blade that is inside. In the majority new Volvos, there is a hidden mechanical car key that can be used to open the door to the driver in the event of an emergency, if remote keys aren't working. You can even utilize the mechanical key to start the car in the event that the push-start button on your Volvo is still activated by the sensor as you enter the car.
To access the key blade, hold the fob with its "Volvo Cars" logo upside down. Find the small black button on the left-hand side of the key fob. Slide it down and then to your right. This will open the cover and let you access the secret key blade that is inside.
The key fob is simple to replace. Slide the key fob cover off the key ring and then remove the back of the cover until you can view the inside. You'll notice that the battery is an ordinary CR 2032 watch-style cell. Remove the old battery and replace it with a new one, taking care not to touch the batteries the' + and - poles with your fingers. They are available in a variety of grocery stores as well as pharmacies.
How to Change the Battery
The key fob is equipped with one battery that will likely need to be replaced at some point during your ownership of the car. The fob also contains a mechanical key blade that allows you to open the driver's door when the battery in the remote is dead or keys are lost.
You can easily replace the battery, but you must be careful not to scratch the metal contacts in the back cover. A small flathead screwdriver, or a plastic pry bar tool can be used for prying off the corners of the cover. Once the cover is removed the battery can be replaced by sliding a new silver button cell (CR 2430 3 Volt) into the slot with the "+" positive side facing downwards and the "negative" negative side facing you.
When the new battery has been installed, the fob can be assembled and the key blade can be inserted. The alarm will go off by pressing the unlock button just once. Pressing it again will unlock all the doors and open the tailgate if you have one installed on your vehicle.

The majority of pharmacies and grocery stores sell batteries for replacement. They are typically sold as watch batteries, and generally include a number printed on the battery to help you identify the battery.
How to Change the Ignition Cylinder
It is essential that your Volvo works correctly. They provide power to various parts of the car, and aid in the start-up process. Over time, they will wear out and require replacement. If you find that your Volvo is having trouble starting or stalls while driving, you may require replacing your ignition cylinder.
If you're fortunate it could be an easy mistake or something you did wrong. It's possible that you didn't remove the key completely, or it may be stuck in the lock. You can try to free the key by moving it around and shaking it gently. However, you should be cautious about applying too much force because it can break something in the steering wheel or the ignition switch.
Another possibility is that the ignition switch is malfunctioning. The switch is used hundreds of times a day, and it's no surprise that over time, it may wear out. Typically, it begins to fail in one of the settings that power devices or the ignition system and then it might be unable to continue. The ignition switch might be unable to function if it's about to fail. It is essential to have it checked as soon as you can.
The technician will inspect the entire system in order to find out the source of the issue. They'll inspect the ignition cylinder, key and other components of the security system. If you're driving a brand newer model, they'll check the wiring to see whether there are any issues with it.
How to Change the Remote
There is an easy and quick method of replacing the battery in your Volvo key fob in case it gets dead. You can use a screwdriver that is flat to pry open the cover on the back of your key fob and replace the battery. You can slide the cover of your battery by pressing the small grey button in the upper right corner of your key fob. G28 can then take off the old battery, and replace it with a new one. This should take no more than 30 minutes.
If you have a newer Volvo model that features remote window roll down, you can manage this feature using your Volvo key fob. You can also utilize the lock button to shut 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. If you press it twice it will unlock the other doors, including the tailgate.
If you notice an "REMOTE BATTERY Low Voltage" message in your car's instrument cluster or the locks don't respond when you're within range, it's time to replace the remote key battery. The replacement of the battery is a fast and simple procedure that can be completed in a matter of minutes at home or at the local car dealership.