How to Change a Dead Volvo C30 Key Fob
The Volvo C30 is an excellent car with only a few minor shortcomings. The two front seats are comfortable, but the rear seats are cramped and the cargo space is small.
If your Volvo key won't turn, it could be due to a variety of issues. Certain keys require programming which is only done by an auto locksmith.
How to change the blade on the key
If your Volvo key fob has an inoperable battery however, you might still be in a position to unlock your car with the mechanical blade that is inside. In the majority of new Volvos there is a hidden mechanical car key that can be used to unlock the door of the driver in an emergency if the remote keys don't work. You can use the mechanical key to start your Volvo as long as the sensor is in use when you enter the vehicle.
To volvo v50 key fob , place your fob upside down with the "Volvo Cars Logo" on the fob. Then, locate a small black button on the bottom left side of the key fob and slide it downwards and to the right. The cover will come off and let you gain access to the secret key blade that is inside.
The key fob is easy to replace. Slide the key fob cover off of the key ring and carefully lift the back of the cover so you can see inside. The battery should be a standard CR2032 watch-style cell. Remove the old battery and replace it with a new one, being careful not to touch the batteries poles'+ and ' with your fingers. You can find these batteries at most supermarkets and pharmacies.
How to Replace the Battery

The key fob has one battery that is likely to need replacement at some point in your ownership of the vehicle. It also has a mechanical key blade which will allow you to open the door to the driver when the battery in the remote is dead or the keys are lost.
You can easily change the battery, but you must be careful not to scratch the metal contacts on the back cover. To open the corner, you can use the small flathead screwdriver or a plastic automotive prybar tool. After the cover is removed the battery can be replaced by sliding a brand new silver button cell (CR 2430 3 Volt) into the slot with the "+" positive side facing downwards and the "-" negative side facing towards you.
The blade for the key is fitted into the fob when the battery has been replaced. The alarm will go off by pressing the unlock button just once. Repeating the button will unlock all the doors and open the tailgate, if you have one installed on your vehicle.
You can buy replacement batteries at the majority of pharmacies or at the grocery store. These batteries are marketed as watchbatteries, and they come with a numbering system on them to help you identify them.
How to change the ignition Cylinder
Ignition cylinders play a crucial role in allowing your Volvo to work properly. They provide energy to the various elements of the car and allow it to start. Over time they can get worn out and require to be replaced. If you notice that your Volvo is having difficulty getting started or stops during driving, then you might require replacing the ignition cylinder.
If you're lucky, it might be a simple thing you did wrong or an error made by you. Maybe you didn't take the key completely out or it was stuck in the lock cylinder. You can try to get rid of the key by moving it around and gently shaking it. But, be careful not to using too much force since it could break something inside the steering wheel or ignition switch.
The ignition switch can also be defective. The switch is used dozens of times a day, and it's no surprise that it may wear out. It's most likely to fail with one of the settings which provide power to the accessories or the ignition before stalling. The sound of a squeal is a sign that the ignition switch is about to fail completely, which is why it is crucial to have it checked out whenever you spot issues.
The technician will examine the entire system to determine the source of the problem. They will check the ignition key, the cylinder, and other components of the security system. They'll also look at the wiring in a more recent car to see if it has any issues.
How to Change the Remote
If your Volvo key fob battery is dying or you'd like to swap it, there's an easy and quick way to do it. Make use of a flat screwdriver to pry the back cover off the key fob to replace the battery. You can open the battery cover off by pressing the small grey button in the upper right corner of your key fob. You can then remove the battery that was in place, and replace it with a new one. This should take less than 30 minutes.
If you have a newer Volvo model that has remote window roll down, you are able to control this feature using your Volvo key fob. You can also use the lock button to shut the sunroof and windows (if equipped). The unlock button on your Volvo SUV key fob will turn off the alarm and open the door to the driver's side when you press it once. Other doors as well as the tailgate will unlock when you press it twice in succession.
If you see a "REMOTE BATTERY low voltage" message in the instrument cluster of your car or the locks fail to respond when you're within range, it's the time to change the battery for your remote key. Replacing the battery of your remote key is an easy and quick process that can be completed in just a few minutes at home or your local car dealer.