1999 GMC Envoy Owner's Manual - Page 307

yellowblue Fuse/Circuit Breaker 14 15 16 17 18 19 20 21 22 23 24 Usage Power Locks Motor 4WD Switch, Engine Controls (VCM, PCM, Transmission) Air Bag Front Wiper Steering Wheel Audio Controls Radio, Battery Amplifier HVAC I (Automatic), HVAC Sensors (Automatic) Anti-Lock Brakes Rear Wiper Radio, Ignition The fuse block is under the hood at the driver's side of the engine compartment. Remove the cover by turning the fastener counterclockwise. To reinstall the fuse panel cover, push in and turn the fastener clockwise. Engine Compartment Fuse Block 6-57