2003 Oldsmobile Bravada Owner's Manual - Page 285

If you get the overheat warning with no sign of steam, try this for a minute or so: 1. In heavy traffic, let the engine idle in neutral while stopped. If it is safe to do so, pull off the road, shift to PARK (P) or NEUTRAL (N) and let the engine idle. Cooling System When you decide it's safe to lift the hood, here's what you'll see: 2. Turn on your heater to full hot at the highest fan speed and open the window as necessary. If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about 10 minutes. If the warning doesn't come back on, you can drive normally. If the warning continues and you have not stopped, pull over, stop, and park your vehicle right away. If there's still no sign of steam, you can push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least three minutes while you're parked. If you still have the warning, turn off the engine and geteveryone out o f the vehicle until it cools down. A. Coolant Recovery Tank B. Radiator Pressure Cap C.Engine Fan If the coolant inside the coolant recovery tank is boiling, don't do anything else until it cools down. The vehicle should be parked on a level surface. You may decide not to lift the hood but to get service help right away. 5-26