2000 GMC Sierra 1500 Pickup Owner's Manual - Page 176

yellowblue Ventilation Tips D Keep the hood and front air inlet free of ice, snow or any other obstruction (such as leaves). The heater and defroster will work far better, reducing the chance of fogging the inside of your windows. Audio Systems Your audio system has been designed to operate easily and give years of listening pleasure. You will get the most enjoyment out of it if you acquaint yourself with it first. Find out what your audio system can do and how to operate all its controls, to be sure you're getting the most out of the advanced engineering that went into it. D When you enter a vehicle in cold weather, turn the blower fan all the way to the right for a few moments before driving. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows. objects. This helps air to circulate throughout your vehicle. affect the performance of the heating and air conditioning system. Setting the Clock for Systems with SET Button Press SET. Within five seconds, press and hold the SEEK right arrow until the correct minute appears on the display. Press and hold the SEEK left arrow until the correct hour appears on the display. D Keep the air path under the front seats clear of D The use of hood air deflectors may adversely Setting the Clock for Systems with HR and MN Buttons Press and hold HR until the correct hour appears on the display. Press and hold MN until the correct minute appears on the display. To display the clock with the ignition off, press RECALL or HR/MN and the time will be displayed for a few seconds. There is an initial two-second delay before the clock goes into the time-set mode. 3-8