How to Replace the Replacement Key Battery For the Saab 9-3
Saab owners have a unique set of steps to take to add the second key. This requires a handheld computer, called Tech-2 which is to be used by the dealer. Then it is necessary to purchase a new transponder. key must be purchased.
Rotate your keys to stop one from wearing out faster than the next. This will also ensure that your keys remain in good condition.

Replacement Case
Unlike the classic Saab keys of old keys, the new key fobs are equipped with electronics that make it difficult to create a duplicate. This has made car theft much more difficult than it was twenty years ago. But, it has also made replacing lost keys a comparatively expensive undertaking.
Saab 9-3 owners must have two working keys. It is costly to replace a lost key, as it requires replacing the CIM module, and programming the locking cylinders. Dealers charge between $100 and $200 for this.
There are a few ways to avoid these high cost. Some parts retailers will find the code on a spare key (usually the same one that opens the doors and turns the ignition) and cut a new metal key blade for just a fraction of dealer cost. The key must be the exact same as the original in order for it to function in your vehicle.
Follow these steps to replace the case. You will need to have an open-faced screwdriver and a lot of patience. With the screwdriver, you can pry apart the plastic and remove the emergency key. Once the case is opened, take out the electronics and place them into your new case. Make sure you insert the correct badge and key back into the case as well.
Replacement Battery
The Saab 9-3 replacement battery is a cheap part that can be quickly and easily replaced. Cyclone's YouTube video Cyd demonstrates how to replace the remote fob battery with just four steps. This tutorial can be used for any modern saab key fob though the process may vary slightly.
This button is usually placed next to the Saab logo on the back of the fob. This button is typically located on the back of your fob, next to the Saab Logo. Then you will need a flathead screwdriver to insert into the tiny hole in this button. This will be enough to allow you to open the fob's case so that you can replace the battery.
Once the new CR1632 battery is in place it is possible to reassemble the remote key fob and program it to your car. The procedure should take no more than an hour at most. It's a very easy process that does not require any special equipment.
The process is more complicated if you lose your key, but it's possible. The dealer must first read the VIN of the vehicle, and then purchase a replacement TWICE module and key blade that has the correct unique code. The dealer will then need to program the key using MDI an innovative software tool.
Replacement Key Fob
The key fob is equipped with an internal battery that is used to lock and unlock your car. The batteries are able to last for that is a long time, and they eventually expire. This is a regular issue that happens with all cars and the good news is that you can change the batteries in most key fobs without having to replace the entire case. You can purchase fobs replacements on Amazon that include all the electronics already in place, so you'll just pop open the case and replace the old batteries. You'll need to take out the emergency key before you replace the batteries. To do this, insert a small flathead screwsdriver into the slot that is in the middle. saab ignition key replacement should split when you turn the screwdriver around it.
If you're about to replace the keys ensure you have a spare, because this can cut down your total cost by a significant amount. If you have an extra key, you can request the dealer to cut it and program it for your vehicle. This is much cheaper than buying a new key fob.
If you don't have a spare car key, you can add an additional key to your car, however this requires a lot of research and effort. It will cost you a few hundred dollars to get a second car key. The computer of the car must also be programmed. This can be accomplished by a professional, however it's a costly option for most owners.
Replacement Ignition
In contrast to the earlier Saab automobiles, the new SAAB 9-3 models have an upgraded alarm system that is built around a coded key. If you lose your sole key, it can be costly to get another one, as the car has to have a special computer added and be programmed to accept a new key. Dealers can even charge hundreds of dollars to program an additional key when they are not able to complete the task.
Dealers will charge you a premium to replace your car's computer (also known as the CIM or SAAB twice) when you lose your only functioning key. Instead we can reprogramme the EEPROM on your existing car computer, preparing it for a new key, saving you over 50% of the price you have to pay at a dealership.
If you've owned a 9-3 from SAAB for a long time and you're aware of the ignition keys aren't very durable. If your ignition key isn't working properly, you should look into replacing it. They can become sticky and the buttons are known to fall off. The good news is that replacing the ignition key isn't as difficult as it seems, and it is fairly easy to do using the appropriate tools.