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10 Things People Hate About Saab Ignition Key Replacement
Saab Key Programming

Saab cars built since about 1994 have an immobilizer feature built on coded keys. A new transponder is required for addition of an extra key, and special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

The issue is that this can be very costly. You should always keep an extra set of keys on hand.

Transponder key

The transponder key is a piece of hardware equipped with an electronic chip. It transmits a signal to the car when it is put into the ignition. The car will check to see whether the signal matches the one on the key. If the signals match then the car will be able to unlock and start. This is a great method to guard your car against theft.

Transponder keys are a common feature in automobiles, but it is important to know that they aren't as secure as classic keys made of metal. The metal component of a traditional key can be easily cut and copied, whereas transponders have an electronic chip which protects it. The chip contains a unique code which is programmed into a car's computer in order to identify it.

When a Saab key fob is used, the car recognizes it and allows it to turn on. However, it is only able to do so if the key fob has an unmodified chip that has been programmed to match the original. The car won't start when the key isn't programmed to match.


It's important to make sure that you have a spare key for your Saab. This is particularly important especially if you reside in a rural location where there are many car thieves. The good part is that you can get a replacement key for your Saab without having to go to a dealer and pay the high costs that they charge. You can have a replacement key created on the spot for less than half the cost you would spend at an auto dealer.

Key for Wired

Saab cars typically come with two keys upon purchase. If you only own one, you should get an additional key as fast as you can. This is because if you lose it the car will require an entirely new CIM and the locking cylinders replaced. This can be expensive, especially for used cars.

The next step is connecting the wires of columns and row to your microcontroller. This is the most laborious aspect of the project and will require a lot of soldering. There is no standardized way to accomplish this, however it is crucial to plan the route you'll take and solder the columns and rows. There are 22 microcontroller wires and pins that you can connect to this keyboard. It has 5 rows and 17 columns.

After the columns and rows are soldered, it's the time to connect them to the key switches. Solder a diode on each key switch pin. This will protect the key switch pins from current and keep them from being shorted. A diode allows the current to flow in a single direction, and has a an indicator in black that indicates which way the current will flow.

A few of the tools that are available at auto parts stores- such as the Autel MaxiIM IM608 PRO and IM508 -- could assist customers at the shop or DIY customers in certain instances replace keys in the program and restore lost immobilizer data, Sanabria says. The tools connect to the OBD port and automatically guide the user through the procedure, making it much easier than replacing the computer inside the vehicle.

Jumpstarting the battery

Most people keep a set of jumper cables in their trunks for emergencies, but jumping a battery on newer cars might not be the best choice. These vehicles have many digital and electronic devices that communicate with one another. A surge in voltage while the battery is connected to another one could damage these components and render your vehicle unable to drive.

Start the vehicle that is working and let it run for about two minutes before connecting the cables to the non-working one. Attach the red clip to the positive terminal of the battery that is good (it will have "POS" or "+" on it). Attach the other end of the black cable to an unpainted, clean metal surface under the disabled car's hood. The engine block would be an ideal choice. Do not connect the black cable to the negative terminal of the dead battery because it could ignite a spark that ignites the gasoline in the engine bay.

Once the cables are connected, you need to start the car and allow it to run for around five minutes. Then disconnect them in reverse. Keep in mind that the battery on your Saab 9-3 is charged during your drive, which means it will take a while for the battery to come down. saab key replacement should invest in a second key fob, as soon as possible. The replacement of the one that works requires the installation and programming of a new computer chip.

Replacement Case

Many Saab owners have only one key for their car and if they lose that key, it will cost them. The reason is that it's costly to buy a new key, and that involves replacing the CIM (Column Integration Module) or TWICE on older models, in addition to programming. It's recommended to have a backup key in the event of theft or other disaster and the best option is to buy an extra key as quickly as you can. Don't buy a secondhand key, even when it's "new." Keys that are claimed as new from a second-hand store will not perform and are almost certain to fail in the crucial moment.

The majority of locksmiths won't be able to help with a single working key and the dealer will charge high fees to replace the computer in your vehicle to make a replacement. We can, however, reset and re-program the computer's EEPROM to prepare it to accept a new key without replacing the whole system. This can save you a great deal of money. It's also less expensive than waiting until you lose your one key.

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