How do you do a idle relearn procedure on a 3.2 2003 cts?

To perform an idle relearn procedure on a 2003 Cadillac CTS with a 3.2L engine, start by ensuring the vehicle is in park and the engine is at normal operating temperature. Next, let the engine idle for about 10 minutes without any load, allowing the idle speed to stabilize. After that, turn off the engine, wait for about 30 seconds, and then restart it to complete the relearn process. Finally, take the vehicle for a short drive to allow the engine control module to adapt to any changes.