How do you adjust the shifter cable on a 02 Chevy Avalanche?

To adjust the shifter cable on a 2002 Chevy Avalanche, first, ensure the vehicle is in park and the ignition is off. Locate the shifter cable at the transmission and identify the adjustment nut. Loosen the nut slightly, then shift the transmission through the gears to ensure proper alignment, and re-tighten the nut in the correct position. Finally, test the shifter to make sure it engages each gear smoothly.