<p>Includes: - Multi-Function Switch</p> <p>Fits Models: - GMC Sierra 3500 HD - GMC Sierra 2500 HD</p> <p>Model Years: - 2015–2018</p> <p>Submodels: - Common trims include SLT, Denali, SLE, WT (Work Truck) - Chassis codes: GMT900, GMT K2XX - Body styles: Crew Cab, Double Cab, Regular Cab</p> <p>Engine Options: - Common engine sizes include 6.0L V8, 6.6L Duramax Diesel, 5.3L V8 - Engine codes: L96, LML, L83</p> <p>Description: This Multi-Function Switch is designed for the GMC Sierra 3500 and 2500 HD models from 2015 to 2018. It controls various functions including headlights, turn signals, and windshield wipers, ensuring seamless operation of essential vehicle features.</p> <p>Features: - Direct replacement for factory switch - Durable construction for long-lasting performance - Easy installation with no modifications required - Compatible with multiple Sierra trims and configurations</p> <p>Part Numbers: - ALX-PAU-SI-CBS-2266-CLA1</p>