Car alarm indicator came illuminated on the dash

The extra keys have created the problem and the car might shut down on you. (I am surprised it is running) Do you have the original keys? Try using them to start the car and then shut it off. Lock and unlock the car using the remote then try to start the car an observe the security light.

Please report back.

Cheers, Ken

You will need to have the new key programmed to the car a shop can do it should cost about $130.00. The Saturn key will not work.

You mean get an auction car?

Still sounds like you got a good deal. Just have the key reprogrammed and it should be a good car for you.

They could Here is the relearn procedure and diagrams on how to change the ignition lock in case you need it

PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS

PROGRAMMING REPLACEMENT PASSLOCK SENSOR, BCM, OR PCM

IMPORTANT:
The body control module (BCM) must be programmed with the proper RPO configurations before performing learn procedures. See Body Control Module (BCM) Programming/RPO Configuration.
If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn Passlock sensor data code immediately. The existing PCM, however, must learn the new fuel continue password when the BCM is replaced.
If replacing a powertrain control module (PCM) with a GM Service Parts Operations (SPO) replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn the current vehicles password.
CONDITIONS
Use this procedure after replacing:
Passlock Sensor
BCM
PCM
LEARN PROCEDURES
There are 2 available methods to perform the programming procedure:
A 10 minute procedure which requires a Tech 2 and a techline terminal.
A 30 minute procedure which does not require the use of any tools.
10 MINUTE LEARN PROCEDURE

TOOLS REQUIRED
Tech 2
Techline terminal with current Service Programming System (SPS) software
Connect the Tech 2 to the vehicle.
Select "Request Information" under "Service Programming".
Disconnect the Tech 2 from the vehicle and connect it to a techline terminal.
On the techline terminal, select "Theft Module Re-Learn" under "Service Programming".
Disconnect the Tech 2 from the techline terminal and connect it to the vehicle.
Turn ON the ignition, with the engine OFF.
Select "Program ECU" under "Service Programming".
Attempt to start the engine, then release the key to ON, vehicle will not start.
Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF; the vehicle is now ready to relearn the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK.
Turn OFF the ignition, and wait 5 seconds.
Start the engine; the vehicle has now learned the password.
With the Tech 2 scan tool, clear any DTCs.
30 MINUTE LEARN PROCEDURE
Turn ON the ignition, with the engine OFF.
Attempt to start the engine, then release the key to ON; the vehicle will not start.
Observe the SECURITY telltale; after approximately 10 minutes the telltale will turn OFF.
Turn OFF the ignition, and wait 5 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ; the vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
IMPORTANT: The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.
With a scan tool, clear any DTCs, if needed. History DTCs will self clear after 100 ignition cycles.

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken