GMC SIERRA INTERIOR LIGHT

My Interior Lights Don’t Come On At All. How Can I Troubleshoot This Issue?

Interior Light Turns On By Itself In The Middle Of The Night Only When It's Very Cold

Hello There I Have A Problem With My Dash, Door And Reading Lights It Seem That Thay Are Only Running At Half The Voltage Thay Need.

My Interior Lights Stay On After Opening The Door. I Have Checked The Rotary Switch, Override Button Is Off And All Interior Lights...