How to Replace the Replacement Key Battery For the Saab 9-3
Saab owners have a distinct set of steps to take to add a second key. This requires a handheld computer, called Tech-2 which is used by the dealer. Then the transponder is replaced and a key have to be purchased.
Rotate your keys to prevent one from deteriorating faster than the next. This will also help to keep your keys in good condition.
Replacement Case
In contrast to the traditional Saab keys of the past, the new keys have electronic components which makes it hard to make a copy. This has made theft of cars considerably more difficult than it was years ago. It also makes it more expensive to replace keys lost.
Every owner of a 9-3 Saab should have at least two working keys. If one of them is lost, it is expensive to get another one for the car, as it requires replacing the CIM module and programming the locking cylinders. Dealers charge between $100 and $200 for this.
There are ways to reduce these costs. Some parts providers will use the code of a spare key to cut a brand new metal blade for less than 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 will need a flathead screwdriver as well as some patience. Utilizing the screwdriver, slowly pry the plastic apart and remove the emergency key from the case. Once the case is opened, take out the electronics and place them into the new case. Make sure to insert the correct key and badge back into the case, as well.
Replacement Battery
The replacement battery for the Saab 9-3 is a cheap part that can be replaced easily and quickly. This YouTube tutorial for DIY user Cyclone Cyd explains how to replace the remote key fob battery in just four steps. This tutorial is suitable for any modern saab key fob, though the process may vary slightly.

The first step is to find the button that opens the backup key within the fob. This is usually located close to the Saab logo on the back of the fob. Next take the flathead screwdriver to insert into the tiny hole in this button. This should be sufficient to open the case to allow you to change the battery.
After you have installed the new batteries CR1632, you can reassemble your remote key fob. You can then program it into your car. The whole process should not be more than an hour. saab 9-3 key programming 's a simple procedure that doesn't require special tools.
If you lose a key, the procedure will be a bit more involved however it can be accomplished. The dealer needs to first determine the VIN of the vehicle before requesting a replacement TWICE module and key blade that has the correct unique code. The dealer will then need to program the key using MDI which is a new software tool.
Replacement Key Fob
The key fob is the piece that locks and unlocks your car. It is equipped with batteries inside. Batteries have a finite lifespan and eventually die. This is a typical issue that happens with all cars and the good news is that you can replace the batteries in many fobs, without replacing the entire case. You can buy fobs replacements on Amazon that have all the electronics already installed, so you'll be able to just pop open the case and replace the batteries that were in the case. It's important to note that you will need to take out the emergency key first, and you can accomplish this by inserting a small flathead screwdriver into the slot found in the middle of the case. The case will split when you work the screwdriver all around it.
If you're planning to replace your keys, make sure you have an extra set on hand. This will save you a significant amount of money. If you have spare keys, you can ask the dealer cut a new key and program it to the car, which is cheaper than replacing the whole key fob.
It is possible to add a second key to your car in the event that you don't have one, but it requires lots of research and work. The cost of adding a second key is about 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
Unlike earlier Saab vehicles, the latest SAAB 9-3 models use an upgraded alarm system that is built on a key code. This means that in the event that you lose your only working key, adding another one can be very expensive as the car has to have a unique computer module fitted and also needs to be specifically programmed to accept a new key. Dealers can charge hundreds of dollars to program an entirely new key, in the event that they are unable to complete the task.
Dealers will charge you the highest price to replace your car computer (also known as the CIM or SAAB twice) If you lose the only working key. We can reprogram the existing EEPROM in your car computer to be ready to accept an additional key. This will save you more than 50% off the price you'd spend at an auto dealer.
If you've owned a SAAB 9-3 an extended period of time you're aware that the ignition keys aren't very durable. If the ignition key you have isn't working correctly, you should look into replacing it. They can become very sticky and the buttons have been known to fall off. It's good to know that replacing the ignition key isn't as difficult as it seems and can be done quickly with the proper tools.