The Sierra 1500 AT4/Denali offers an optional heads-up display that projects speed, warning and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Titan XD doesn’t offer a heads-up display.
The Sierra 1500’s power parking brake sets with one touch and releases with one touch or automatically. The Titan XD’s parking brake has to be released manually.
The power windows standard on both the Sierra 1500 and the Titan XD have locks to prevent small children from operating them. When the lock on the Sierra 1500 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Titan XD prevents the driver from operating the other windows just as it does the other passengers.
The Sierra 1500’s standard front and rear power windows all lower with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Titan XD’s rear power window switches have to be held the entire time to open them fully.
The Sierra 1500 has standard Push Button Start that allows you to start the engine without removing the key from the pocket or purse. The Intelligent Key costs extra on the Titan XD.
The Sierra 1500’s LED headlights produce a whiter, brighter light (up to 3x) using five times less power than the Titan XD SV’s standard halogen headlights. LED lights also light instantly and last over twenty times longer than halogen.
The Sierra 1500 AT4X/Denali Ultimate has standard massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Titan XD.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the GMC Sierra 1500 (except Pro/SLE) offers an optional wireless phone charging system (Qi) in the center console. The Titan XD doesn’t offer wireless personal charging.