Swiss mountain roads: uphill driver has priority, postal buses on signed roads have absolute priority. Use engine braking on long descents, carry snow chains in winter.
Uphill vs Downhill Priority
On narrow mountain roads, the uphill driver generally has priority – reversing uphill is harder and more dangerous than reversing downhill.
If a heavier vehicle (truck, bus) is descending, the lighter vehicle going uphill yields. On signed postal-bus roads, the postal bus has absolute priority.
Crossing on narrow mountain roads: whoever is closer to the next passing place reverses.
Using Engine Braking
Long downhill: shift to a low gear and let the engine brake
Avoid continuous use of the foot brake – brake discs overheat (fade) and effectiveness drops
Brake pedal feels spongy / smells of burning = stop, let brakes cool
Manual / automatic both have a low gear or hill-descent mode
Curves, Snow Chains and Visibility
In curves, keep strictly to your side. Many mountain accidents happen because drivers cut the curve.
In snow or ice, use winter tyres and carry snow chains. Where signed, snow chains are mandatory on the drive wheels.
Practise now
Practise with official exam questions
Over 800 official questions of the Swiss driving theory exam.