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How to Replace the Replacement Key Battery For the Saab 9-3 Saab owners have to follow a series of specific steps to add a second ignition key. This requires a handheld computer, called Tech-2 which is used by the dealer. Then it is necessary to purchase a new transponder. key must be purchased. It is a good idea to rotate your keys in order that one does not get worn out more quickly than the other. This will also help keep your keys in good condition. Replacement Case The new key fobs are not like the older Saab keys. They have electronics that make it difficult to copy. This has made stealing cars significantly more difficult than 20 years ago. However, it has made replacing lost keys a more expensive endeavor. Every owner of a Saab 9-3 should have at a minimum two functioning keys. It is costly to replace a lost or damaged key since it requires replacing the CIM module, and reprogramming the locking cylinders. G28 Car Keys between $100-$200 to do this. There are ways to cut down on these costly costs. Some parts dealers can look up the code on a spare key (usually the same one that opens the doors and turns off the ignition) and cut a new metal key blade at only a fraction of the dealer's cost. The key must be exactly the identical to the original one for it to work in your vehicle. Follow these steps to replace the case. You will need a flathead screwdriver as well as some patience. With the screwdriver, pry off the plastic and then remove the emergency key. Once the case is opened, take out the electronics and put them back into your new case. Make sure you put the correct key and badge back into the case as well. Replacement Battery The Saab 9-3 replacement battery is an inexpensive component that can be easily and quickly replaced. The YouTube video of Cyclone Cyd shows how to replace the battery for the remote fob in just four simple steps. This tutorial should work with any modern Saab key fob. However, the process may differ slightly. This button is usually placed near the Saab logo on the back of the fob. It is usually located just below the Saab logo on the back of the fob. Then you will need a flathead screwdriver into the tiny hole in this button. This should be enough to open the fob case in order to change the battery. After the new battery CR1632 is in place then you can reassemble your remote key fob. You can then program it to your car. The entire process should not be more than an hour. This is a straightforward process that doesn't require any special tools. If you lose a key the process will be a bit more involved however, it can be done. The dealer will have to read the car's VIN and then purchase a replacement key blade and TWICE module with the correct unique code. The dealer will then need to program the key using MDI, a new software tool. Key Replacement Fob The key fob is the device that locks and unlocks your car, it's got an internal battery. Batteries have a limited lifespan and eventually will die. This is a problem that happens to all cars and the good thing is that you can replace the batteries in a majority of key fobs without replacing the entire case. Amazon sells replacement fobs that already have all the electronics installed. It is easy to pop the case open and replace the batteries. You'll need to take out the emergency key before you replace the batteries. To accomplish this, simply insert a small flathead screwsdriver into the slot in the middle. Work the screwdriver around the case until it will split open, making it much easier to take it out. If you're planning to replace your keys, keep a spare available. This can save you a lot of money. If you do have a spare, you can ask the dealer to cut a new key and program it to your car, which is much cheaper than replacing the entire key fob. If you do not have a spare key car key, you can add a second key to your car, however this will require a lot of research and effort. The cost for adding a second key is a few hundred dollars, and it also requires programming of the car's computer. Professionals can do this however it's a costly option. Replacement Ignition The modern SAAB 9-3 has an advanced alarm system that is based on a key code. If you lose only one key, it can be costly to replace it with another one because the car must have a special computer added and also be programmed to accept a brand new key. Even dealers can charge hundreds of dollars to program an entirely new key, in the event that they are unable to do it. Dealers will charge you top dollar to replace your car computer (also called the CIM or SAAB twice) when you lose your sole working key. We can reprogram the existing EEPROM of your car's computer to be ready to accept an additional key. This will save you more than 50% off the cost you pay at a dealer. If you've owned a SAAB 9-3 for many years, you know that the ignition keys aren't very durable. They can become incredibly sticky and the buttons are known to be removed from them from time to time It is recommended that you consider purchasing a new one if yours isn't performing as it should. It's not as difficult as it appears to replace the ignition key. With the appropriate tools, it could be accomplished in a matter of minutes.