1999 Buick Riviera Owner's Manual - Page 151

yellowblue D When the engine idles for a long time, the exterior temperature sensor retains the temperature setting that was present when the vehicle was last moving. The system will try to maintain the set temperature inside your vehicle. Audio Systems Your Delco Electronics 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 Delco Electronics 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. Steering Wheel Controls for Climate Control (Option) If your vehicle has this feature, you can control the temperature comfort setting by using the control button on your steering wheel. Setting the Clock Press and hold HRS until the correct hour appears. Press and hold MIN until the correct minute appears. You may set the clock with the ignition off if you press RECALL first and follow the same procedure described above. TEMP: Press either arrow once and the current comfort setting will be displayed. Press the up arrow again to choose a warmer comfort setting and press the down arrow again to choose a cooler comfort setting. 3-9