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How to Replace the Replacement Key Battery For the Saab 9-3 Saab owners have a distinct set of steps to add the second key. This requires the use of a handheld computer, known as Tech-2 which is used by the dealer. Then a new car key and transponder have to be purchased and programmed to the car. Rotate your keys to stop one from wearing out more than the other. This will help keep your keys in top condition. Replacement Case Unlike the classic Saab keys of old keys, the new key fobs are equipped with electronics which makes it difficult to copy. This has made stealing car keys much more difficult than twenty years ago. It also makes it more expensive to replace keys lost. Every owner of a Saab 9-3 needs to have at least two working keys. It's expensive to replace a lost key, as it requires replacing the CIM module, as well as reconfiguring the locking cylinders. Dealers charge between $100 and $200 for this. There are several ways to get around these expensive. Some parts providers will find the code from a spare key (usually the same one that opens the doors and turns the ignition) and cut a brand new key blade from metal for less than the dealer's cost. The key, however, must be the same as the original one in order to function in your vehicle. You can also change the case yourself by following these steps. You will need a flathead screwdriver and some patience. With the screwdriver, slowly pull the plastic apart and separate the emergency key from the case. When the case is opened take out all electronic components and put them back in your new case. Put the correct key and badge inside the case. Replacement Battery The replacement battery for the Saab 9-3 is a cheap component that can be replaced easily and quickly. This YouTube video by Cyclone Cyd demonstrates how you can replace the remote fob battery in just four simple steps. This tutorial should work for any modern saab key fob however the procedure might differ slightly. The first step is to find the button that lets off the backup key in the fob. It's usually just below the Saab logo on the back of the fob. Use a flathead to insert the screwdriver into the small hole in this button. This should be sufficient to open the case in order to change the battery. After the new battery CR1632 is installed it is possible to reassemble the remote key fob. replacement saab 9-3 key can then program it to your car. The entire process should not exceed an hour. It is a very simple process that does not require any special tools. If you lose your key, the process is a bit more involved however it can be completed. The dealer will need to find the VIN number of the car and then request a replacement key blade and TWICE module with the exact unique code. After that, they will be required to cut the replacement key and then program it using a new software tool called MDI. Key Replacement Fob The key fob is the piece that locks and unlocks your car. It has a battery inside. The batteries are able to last for and eventually fail. This is a problem that happens with all cars and the good news is that you can replace the batteries on most key fobs without having to replace the entire case. You can buy fobs replacements on Amazon that come with all the electronics already installed, so you can simply open the case and replace those batteries that are old. It is important to note that you'll need to take out the emergency key first, and you can accomplish this by inserting the small screwdriver flathead into the slot found in the middle of the case. The case will split when you rotate the screwdriver around it. If you're ready to replace your keys, have a spare on hand. This will save you a significant amount of money. If you have an additional key, ask the dealer to cut it in half and program it to your vehicle. This is much less expensive than purchasing a new key fob. It is possible to add a second key to your car even if you don't have one, however it requires a great deal of research and effort. It costs a few hundred bucks to add a second car key. The computer of the car must also be programmed. Professionals can do this but it's not a cheap option. Replacement Ignition The current SAAB 9-3 uses an alarm system that is more sophisticated based on a key code. This means that should you lose only one functioning key, getting an additional one could be extremely expensive because the car needs to have a special computer module installed and it must also be specifically programmed to accept a new key. The majority of locksmiths aren't able to do this or even dealers will charge hundred dollars to program the new key! Dealers will charge you a high price to replace your car's computer (also known as the CIM or SAAB twice) when you lose your sole working key. Instead we can reprogramme the EEPROM on your existing car computer to make it ready for a replacement key, which will save you more than 50% of what you'd be charged at a dealership. If you've owned a SAAB 9-3 for quite a while and you're aware of the ignition keys aren't very durable. They can get extremely sticky and the buttons can fall off at times which is why you should think about getting a replacement if yours isn't functioning properly. It's not as difficult as it appears to replace the ignition key. With the proper tools, it can be accomplished quickly.