How to Replace the Replacement Key Battery For the Saab 9-3
Saab owners have a unique procedure to add an additional key. This requires a handheld computer, called Tech-2 that is operated by the dealer. Then the transponder must be replaced and a key must be purchased.

Rotate your keys to stop one from wearing out quicker than another. This will help keep your keys in pristine condition.
Replacement Case
Contrary to the classic Saab keys of the past, the new key fobs have electronics inside which makes it more difficult to make a copy. That has made car theft much more difficult than it was a few years ago. However, it has also made replacing lost keys a much more expensive undertaking.
Every owner of a Saab 9-3 needs to have at minimum two working keys. If one of them is lost, it costs a lot to replace it in the car since it requires replacing the CIM module, and then reprogramming the locking cylinders. Dealers charge between $100 and $200 for this.
There are ways to avoid these high costs. Some parts suppliers can look up the code on an old key (usually the same one that opens the doors and turns the ignition) and cut a new key blade from metal for just a fraction of dealer cost. The key, however, must be the same as the original one in order to function in your car.
You can also replace the case yourself by following these steps. You'll require a flathead screwdriver and some patience. Using the screwdriver, slowly pull the plastic apart and separate the emergency key from the case. Once you have the case opened, take out the electronics and put them back into the new case. Be sure to put the correct key and badge back inside the case, too.
Replacement Battery
The replacement battery for the Saab 9-3 is an affordable part that can be replaced easily and quickly. This YouTube video from Cyclone Cyd demonstrates the procedure for replacing the remote fob battery in only four steps. This guide should work with any modern saab key fob, though the process may vary slightly.
The first step is to find the button that lets off the backup key on the fob. It's usually next to the Saab logo on the back of the fob. Use a flathead screwdriver to insert the screwdriver into the small hole on this button. This should be enough to open the case of the fob so that you can replace the battery.
Once you have installed the new batteries CR1632, you can reassemble your remote key fob. Then, you can program it into your car. The procedure should take no more than an hour at most. It is a simple process that does not require any special tools.
The process is a bit more complicated if you lose your key, but still possible. The dealer will first need to read the VIN of the vehicle and then order an additional TWICE module and key blade that is matched to the unique code. After that, they'll have to cut the new key and then program it with the latest software tool known as MDI.
Replacement Key Fob
The key fob has a battery that is used to lock and unlock your car. They have a limited life span and eventually will die. our homepage is a problem that happens to all cars and the good thing is that you can change the batteries in many key fobs without replacing the entire case. Amazon sells replacement fobs that already have all the electronic components installed. You can simply pop the case open and replace the batteries. It is important to remember that you will need to take out the emergency key first. you can do this by putting the screwdriver of a small flathead into the slot that is located in the middle of the case. The case should split when you move the screwdriver around it.
When you are ready to replace the keys, make sure you have a spare as this will reduce your total cost by a significant amount. If you have an additional key, you can request the dealer to cut it in half and program it to your car. This is much cheaper than purchasing a new fob.
It is possible to add another key to your vehicle in the event that you don't have one, but it takes lots of research and work. The cost for adding a second key is several hundred dollars and it also requires the programming of the car's computer. This can be done by a professional, however it's an expensive option for most owners.
Replacement Ignition
The modern SAAB 9-3 uses a more sophisticated alarm system that is based on a key code. This means that if you lose your only working key, adding another one could be very expensive as the car has to have a computer module added and it must also be programmed to accept a new key. Most locksmiths can't do this, and even a dealer will charge several hundred dollars just to program the new key!
If you've lost only one working key and a dealer is able to replace the computer in your car (known as the CIM or SAAB TWICE) to create an exchange, and they will charge you the highest price for it. We can reprogram the existing EEPROM on your car's computer so that it's ready for an additional key. This will save you more than 50% off the cost you would have to pay the dealer.
If you have owned a SAAB 9-3 quite a while, you know that the ignition keys are not very durable. They can become extremely sticky, and the buttons are known to fall off of them at times, so you should consider getting a replacement if yours isn't performing as it should. It's not so difficult as it may seem to replace the ignition key. With the right tools, it can be accomplished quickly.