Product details:

GMC Sierra 2500 Crew Cab 153.7" Wheelbase / 167.7" Wheelbase 2019, GM Original Equipment Electronic Brake Control Module (84256781) by ACDelco. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.Helps provide controlled braking in icy or wet conditions
Reads vehicle sensors to trigger anti-lock braking system (ABS)
Helps to reduce wheel slippage for controlled stopping in slippery situations
GM-recommended replacement part for your GM vehicles original factory component
Offering the quality, reliability, and durability of GM OE