chapter 8 — emergency strategies driving tip Strategies: driving in low visibility conditions Glare and shadows  Strategies: overcoming glare and shadows 119 • Keep a good following distance at night to reduce the  glare your headlights create. • Adjust your rear‑view mirror to the night‑driving  position.  • Keep your windows clean.  • Use sunglasses and your sun visor during the daytime.  • Remove your sunglasses and turn on your headlights  while driving through tunnels.  • Slow down before entering tunnels to let your eyes  adjust to the lower light levels.  • Slow down.  • Maintain extra space margins.  • Search and scan more carefully.  • Use low beam headlights in rain, snow and fog.  • Do not pass in extreme weather conditions because you  can’t see far enough ahead.  • Pull over and stop if necessary until the visibility  improves. Choose a place that is safe from other traffic  and does not block roadways.  • Use your defroster to keep your windows clear. If  necessary, leave a window partly open for ventilation.  • Clear the vehicle of snow and ice before starting off.  Make sure you can see clearly.  • Keep your wipers and washers in good working order. Changing light conditions can reduce your ability to see. Glare  can blind you in the day or at night when meeting vehicles with  bright headlights. Dark shadows can hide hazards. To handle glare and shadows while driving: Difficult weather conditions can be hazardous for drivers  because visibility is often reduced. In these conditions: In certain foggy  conditions, you can use  fog lamps instead of  headlamps if it helps  with visibility. In those  situations, you can turn  your headlamps off and  only use your fog lights.  However, both fog lamps  and headlamps should  never be used at the same  time, if there is some fog  but visibility is not affected  or if conditions are clear.