How to Replace the Replacement Key Battery For the Saab 9-3
Saab owners have to follow a series of unique steps to add a second ignition key. This requires a handheld computer, called Tech-2 which is to be used by the dealer. A new key and transponder have to be purchased and then programmed into the car.
It is a good idea to rotate your keys in order that one doesn't wear out more quickly than the other. This will keep your keys in perfect condition.
Replacement Case
In contrast to the traditional Saab keys of the past keys, the new key fobs contain electronics which makes it more difficult to duplicate. This has made theft of cars considerably more difficult than it was years ago. It also makes it more costly to replace keys that were lost.
Saab 9-3 owners must have two keys that work. If one is lost it is expensive to purchase a new one for the car, as it requires replacing the CIM module and reprogramming the locking cylinders. Dealers charge between $100 and $200 to do this.
There are ways to reduce these high cost. Some parts providers will use the code of a spare key to cut a brand new metal blade at a fraction that of a dealer. The key, however, must be identical to the original in order to function in your vehicle.
Follow these steps to replace the case. You will need a flathead screwdriver and some patience. With the screwdriver, slowly break the plastic and then separate the emergency key from the case. When the case is opened take the electronics out and put them back in your new case. Place the key with the correct badge into the case.
Replacement Battery
The replacement battery for the Saab 9-3 is a low-cost part that can be replaced easily and quickly. This YouTube video by Cyclone Cyd demonstrates how to replace the battery for the remote fob in just four simple steps. This tutorial is suitable for any modern saab-type key fob, though the process may vary slightly.
The button is typically located just below the Saab logo on the back of the fob. The button is usually found on the back of the fob, close to the Saab Logo. Use a flathead screwdriver to insert the screwdriver in the small hole in this button. This should be sufficient to let the fob case open so that you can change the battery.
Once you have installed the new CR1632 batteries, you can restore your remote key fob. You can then program it into your car. The procedure should take no more than a half hour at the most. It is a simple process that does not require any special equipment.

If you lose a key the process will be a bit more involved, but it can still be completed. The dealer needs to first determine the VIN of the vehicle and order the replacement TWICE module as well as key blade that is matched to the unique code. Then, they'll be required to cut the replacement key and then program it using a brand new tool for programming called MDI.
Replacement Key Fob
The key fob is the piece that locks and unlocks your car. It has a battery inside. The batteries have a lifespan, and they will eventually fail. This is a problem that happens to all cars and the good thing is that you can replace the batteries on most key fobs without having to replace the whole case. You can purchase replacement fobs from Amazon that have all the electronics already installed, which means you can just pop open the case and replace the batteries in the original case. It is important to remember that you'll need take out the emergency key first. you can do this by putting a small flathead screwdriver into the slot in the middle of the case. The case will split when you rotate the screwdriver around it.
If you're planning to replace your keys, have an extra set on hand. This will save you lots of money. If you have an extra key, you can ask the dealer to cut it and program it for your car. This is much less expensive than purchasing a new fob.
If you do not have a spare key you can add another key to your car, however this requires a lot of research and effort. It costs a few hundred dollars to get an additional car key. The computer of the car also needs to be programmed. This can be accomplished by a professional, however it is an expensive option for the majority of owners.
Replacement Ignition
Unlike the earlier Saab automobiles, the current SAAB 9-3 models are equipped with a much more sophisticated alarm system that is built on a key code. If you lose your only key, it could be expensive to add another one because the car must have a special computer added and also be programmed to accept a new key. Most locksmiths cannot do this and even a dealer will charge several hundreds of dollars just to program the new key!
Dealers will charge you the highest price to replace your car computer (also called the CIM or SAAB twice) if you lose your only working key. Instead we can reprogramme the EEPROM of your current car computer to prepare it for an additional key, saving you over 50% of the price you spend at a dealer.
If saab 93 replacement key owned a car like the SAAB 9-3 for an extended period of time and you're aware of the ignition keys are not very durable. If the ignition key you have isn't working correctly, you should consider replacing it. They can become extremely sticky and the buttons have been known to fall off. It's not as difficult as you think to replace the ignition key. With the right tools, it can be accomplished in a short time.