1997 Chevrolet Suburban Owner's Manual - Page 341

Electrical System Add-on Electrical Equipment Headlamps The headlampwiring is protected by a circuit breaker in the lamp switch.An electrical overload will cause the lamps to flickeron and off, or in some cases to remain off. If this happens, have your headlamp wiring checked right away. NOTICE: Don't add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn't be covered by your warranty. Someadd-on electrical equipment can keep other components from working as they should. Your vehicle has an airbag system. Beforeattempting to add anythingelectrical to your vehicle, see "Servicing Your Air Bag-Equipped Vehicle" in the Index. Windshield Wipers The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. Although the circuit is protected from electrical overload, overload due to heavy snow, etc., may cause wiper linkage damage. Always clear ice and heavy snow from thethe windshield before using the windshield wipers. If the overload is caused by some electrical problem and not snow, etc., be sure to get it fixed. 6-62