Volvo VNL 780 Operator's Manual page 114

104 INSTRUMENTS AND CONTROLS
Snow Plow Lamps
Vehicles specified with this option have the following:
•
Turn ON low beam snow plow head lamps.
•
Turn OFF main head lamps, high beam, fog and driving lights.
•
In driving mode, DRL remains ON.
•
Snow plow direction indicators are available.
W3005382
Sleeper Fan Speed Switch
34. Beacon Lamps Switch
W3005428
Sleeper Fan Speed Switch