How do you change ignition on a 1992 sierra?

To change the ignition on a 1992 GMC Sierra, first disconnect the battery to ensure safety. Remove the steering column cover and locate the ignition switch, which is typically near the top of the column. Disconnect the wiring harness and unbolt the ignition switch from its mounting. Replace it with a new switch, reattach the wiring, and reassemble the steering column before reconnecting the battery.