One problem related to horn assembly has been reported for the 2000 Chevrolet S10. The most recently reported issues are listed below.
Electrical system malfunctoned. Horn would go off by itself, and dealer changed fuse. Also, wiring harness caught on fire while parked. Headlights went dim & flickered on/off intermittentlly. Mileage was electrical & changes dramatically. Dealer admitted there was an electrical problem.