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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 a second key. This requires the use of a handheld computer called Tech-2, to be used by the dealer. Then a new key as well as transponder need to be bought and then programmed into the car. Change your keys regularly to prevent one from wearing out more than the next. This will keep your keys in good condition. Replacement Case Unlike the classic Saab keys of old keys, the new key fobs contain electronics that make it difficult to create a duplicate. This has made stealing cars considerably more difficult than it was twenty years ago. It also makes it more expensive to replace keys lost. Saab 9-3 owners should have two working keys. If one is lost it is expensive to replace it in the car since it requires replacing the CIM module and re-programming the locking cylinders. Dealers charge between $100 and $200 to do this. There are ways to cut down on these costly costs. Some parts dealers will use the code of an old key to cut a new metal blade at a fraction that of a dealer. The key must be the exact same as the original to allow it to function in your vehicle. You can also replace the case yourself by following these steps. You'll need an open-faced screwdriver and a lot of patience. Using the screwdriver, slowly break the plastic and then separate the emergency key from the case. Once you have the case open, remove the electronic components and put them back into the new case. Make sure to insert the correct key and badge back inside the case, too. Replacement Battery The replacement battery for the Saab 9-3 is a cheap part that can be replaced quickly and easily. This DIY video from YouTube user Cyclone Cyd explains how to replace the battery in the remote key fob in just four steps. This tutorial should work for any modern saab key fob although the process might differ slightly. The first step is to find the button that opens the backup key within the fob. This button is usually located on the back of your fob next to the Saab Logo. Use a flathead screwdriver to insert the screwdriver in the small hole in this button. This should be enough to unlock the case of the fob to allow you to replace the battery. After the new battery CR1632 is installed it is possible to reassemble the remote key fob. You can then program it to your car. The entire process shouldn't exceed an hour. It's a simple process that doesn't require any special tools. The process is more complicated if you've lost your key, but it is possible. The dealer has to first verify the VIN of the vehicle and then order an additional TWICE module and key blade with the correct unique code. saab spare key will then have to program the key using MDI, a brand new software tool. Replacement Key Fob The key fob has a battery that is used to lock and unlock your vehicle. The batteries have a lifespan that is a long time, and they eventually expire. It's a common issue for all vehicles. The good news is that you can replace the battery in most key fobs, and not have to replace the entire case. Amazon sells replacement fobs that already have all the electronics in place. It is easy to pop the case open and replace the batteries. It is necessary to remove the emergency key before you replace the batteries. To do this, you need to insert an small screwdriver with a flat head into the slot that is in the middle of the. Move the screwdriver around the case until it is split open, making it easy to take it out. When you're ready to replace the keys ensure you have a spare as this can reduce the total cost by a significant amount. If you do have a spare, you can ask the dealer cut an additional key and program it to your car, which is cheaper than replacing the entire key fob. It is possible to add a second key to your vehicle in the event that you don't have one, but it takes an extensive amount of research and work. Adding a second key costs a few hundred dollars, and also requires programming of the car's computer. This can be accomplished by a professional, but it's a costly option for most owners. Replacement Ignition The latest SAAB 9-3 features an alarm system that is more sophisticated based on a key code. This means that if you lose your only functioning key, getting another one could be very expensive since the car has to have a special computer module fitted and must also be specifically programmed to accept an additional key. Dealers can charge hundreds of dollars to program the new key when they are not able to do it. Dealers will charge you a premium to replace your car computer (also called the CIM or SAAB twice) if you lose your only working key. We can reprogram the EEPROM in your car computer so that it's ready to accept an additional key. This will save you more than 50% of what you would have to pay the dealer. If you've been an owner of a 03-11 SAAB 9-3, you likely have noticed that the ignition switch isn't really all that robust. If the ignition key you have isn't functioning properly, you must consider replacing it. They can become extremely sticky and the buttons are known to fall off. Fortunately, replacing the ignition key isn't as difficult as it sounds, and it can be done in a short time with the proper tools.