1999 GMC Sonoma Owner's Manual - Page 246

yellowblue Checking Things Under the Hood CAUTION: Things that burn can get on hot engine parts and start a fire. These include liquids like gasoline, oil, coolant, brake fluid, windshield washer and other fluids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine. Then go to the front of the vehicle and release the secondary hood release. To open the hood, first pull the handle inside the vehicle on the lower left side of the instrument panel. Lift the hood, release the hood prop from its retainer and put the hood prop into the slot in the hood. 6-8