Snow, packed ice and black ice can make Himachal Pradesh's mountain roads difficult even when a route remains officially open. Black ice is particularly hard to see and can develop on shaded bends, bridges and sections where melted snow refreezes.
Drive slowly, avoid sudden braking or steering and maintain more distance from the vehicle ahead. Avoid unnecessary night driving, and use a vehicle and tyres appropriate for the conditions. If you lack experience driving on snow or ice, hiring a local driver is the safer choice.
Carry warm clothing, water, food, essential medicines, a charged phone and a power bank on longer routes. Check weather and road updates before departure, and turn back or postpone the journey if snowfall, visibility or road conditions become unsafe.