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How to Replace the Replacement Key Battery For the Saab 9-3 Saab owners must follow a set of special steps to install an additional ignition key. This requires the use of a handheld computer, known as Tech-2 that is operated by the dealer. Then the transponder is replaced and a key have to be purchased. Make sure to rotate your keys in order to prevent one from wearing out more than the next. This will also keep your keys in top condition. Replacement Case Unlike the classic Saab keys of the past, the new key fobs contain electronics that make it difficult to duplicate. This has made car theft considerably more difficult than it was a few years ago. However, it also has made the replacement of lost keys an incredibly expensive endeavor. Saab 9-3 owners should have two working keys. It is costly to replace a lost key because it requires replacing the CIM module, as well as changing the locking cylinders. Dealers will typically charge $100-$200 to do this. There are some ways around these costly. Some parts suppliers will use the code of an extra key to cut a new metal blade at a fraction that of a dealer. The key must, however, be identical to the original one to function properly within your car. You can also replace the case yourself by following these steps. You'll require an open-faced screwdriver and a lot of patience. With the screwdriver, slowly pull the plastic apart and separate the emergency key from the case. Once the case is opened, take out the electronics and place them inside the new case. Make sure to insert the correct key and badge back inside the case, too. Replacement Battery The Saab 9-3 replacement battery is a budget component that can be quickly and easily replaced. This DIY video from YouTube Cyclone Cyd shows how to replace the battery for the remote key fob in only four steps. This tutorial will work with any modern Saab key fob. However, the procedure could differ slightly. The first step is to find the button that lets off the backup key inside the fob. The button is usually found on the back of your fob right next to the Saab Logo. Use a flathead screwdriver to insert the screwdriver through the small hole in this button. This should be enough to open the fob's case to allow you to replace the battery. Once you have installed the new batteries CR1632, it is possible to restore the remote key fob. You can then program it into your car. The entire process shouldn't take more than one hour. It's a very easy procedure that doesn't require any special tools. The process is a bit more complicated in the event that you lose your key, but it's possible. The dealer must first read the VIN of the vehicle before requesting an additional TWICE module and key blade that is matched to the unique code. The dealer will then have to program the key using MDI, a brand new software tool. Replacement Key Fob The key fob comes with an internal battery that is used to lock and unlock your car. Batteries have a limited lifespan and eventually die. This is a common problem that affects all cars, and the good news is that you can change the batteries on most key fobs without having to replace the whole case. Amazon sells replacement fobs that already have all the electronic components in place. You can simply open the case and replace the batteries. It is important to note that you'll need remove the emergency key first, and you can do this by putting a small flathead screwdriver into the slot in the middle of the case. Work the screwdriver around the case until it is split open, making it much easier to remove. If you're ready to replace your keys, make sure you have an extra set on hand. This can save you a lot of money. If you have a spare, you can ask the dealer cut the new key and program it into your car, which is cheaper than replacing the entire key fob. It is possible to add another key to your vehicle even if you don't have one, but it takes an extensive amount of research and effort. The cost of adding a second key is several hundred dollars and it also requires programming of the car's computer. Professionals can accomplish this, but it's an expensive option. Replacement Ignition Unlike earlier Saab automobiles, the new SAAB 9-3 models have an advanced alarm system that is based on a coded key. If you lose your sole key, it can be expensive to add another one since the car must have a specific computer installed and be programmed to accept a new key. saab keys of locksmiths aren't able to do this and even a dealer will charge several hundreds of dollars just to program the new key! Dealers will charge you top dollar to replace your car's computer (also called the CIM or SAAB twice) in the event that you lose your sole working key. Instead we can reprogramme the EEPROM in your current car computer to make it ready for an additional key, and save you over 50% of what you'll be charged at a dealership. If you have owned a 9-3 from SAAB for quite a while, you know that the ignition keys aren't very durable. If your ignition key is not functioning properly, it is time to think about replacing it. They can become very sticky and the buttons have been known to fall off. Luckily, replacing the ignition key isn't as difficult as it seems and is fairly easy to do using the right tools.