Which lights must always function properly to pass inspection?

To pass a safety inspection, it is crucial that the headlights, taillights, and brake lights are fully operational. These lights are essential for ensuring visibility and communication with other drivers on the road. Headlights are vital for nighttime driving and inclement weather conditions, allowing drivers to see and be seen. Taillights indicate to other drivers when a vehicle is present and when it is braking, which is critical for safety and reducing the risk of accidents. Brake lights, specifically, are critical as they signal that a vehicle is slowing down or stopping, giving trailing vehicles the necessary warning to react accordingly.

In contrast, while turn signals, fog lights, and reverse lights are important features of a vehicle, they are not the primary lights required to ensure safety in all driving conditions. Therefore, having the headlights, taillights, and brake lights in proper working order is fundamental to passing an inspection and driving safely on the roads.