Door Jamb Switch
A door jamb switch is a small mechanical switch installed in the door frame of your vehicle. When you open the door, the switch is released, completing the circuit and turning on the interior lights. When you close the door, the switch is pressed, breaking the circuit and turning off the lights. This automatic function provides convenient illumination when entering or exiting your vehicle.

Pillar Switch
Located on the vehicle's interior pillars (typically the B-pillar), these switches allow manual control of courtesy lights in the rear passenger areas. They're especially common in larger vehicles like vans and SUVs, giving rear passengers control over their lighting without reaching for front controls.

Glove Box Switch
This switch activates when you open your glove compartment, automatically illuminating its contents. The light turns off when you close the compartment, preventing battery drain. It's a practical feature that helps you locate items in your glove box, especially during nighttime.

Manual Override Switch
Usually located on the dashboard or overhead console, this switch allows you to manually control all courtesy lights. It typically has multiple settings: "Off" (lights stay off regardless of door position), "On" (lights stay on), and "Door" (lights activate when doors open). This gives you complete control over your vehicle's interior lighting system.

Trunk/Boot Switch
Similar to the glove box switch, this activates when you open your vehicle's trunk or boot, providing illumination for loading and unloading items in low-light conditions. The light automatically turns off when the trunk is closed to preserve battery life.

Dimmer Switch
While not strictly a courtesy light switch, this control allows you to adjust the brightness of your interior courtesy lights. It helps create comfortable lighting levels for different situations and times of day, enhancing both functionality and comfort.