MECHANICAL Rear Axle, 3.73 Ratio (Requires (R05) dual rear wheel configuration.) Body, standard GVWR, 12,300 lbs. (5579 kg) Cooling, external engine oil cooler Battery, 600 cold-cranking amps maintenance-free with rundown protection and retained accessory power Alternator, 150 amps Frame, ladder-type Incomplete vehicle certification Suspension, front independent with coil springs and stabilizer bar Suspension, rear hypoid drive axle with multi-leaf springs Fuel tank capacity, mid-frame and approximately 32 gallons (121.1L) Exhaust, aluminized stainless-steel muffler and tailpipe --- EXTERIOR Bumper, front painted Black with step-pad (Deleted when (ZR7) Chrome Appearance Package is ordered.) Grille, Black composite (Not available with (ZR7) Chrome Appearance Package.) Headlamps, dual halogen composite Flasher, heavy duty light emitting diode (LED) Glass, Solar-Ray light-tinted, all windows Mirrors, outside delete License plate kit, front --- INTERIOR Cup holders, 3 on the engine console cover Floor covering, Black rubberized-vinyl front Instrumentation, analog with speedometer, odometer with trip odometer, fuel level, voltmeter, engine temperature and oil pressure Warning tones, headlamp on and key-in-ignition Oil life monitor Mirror, inside rearview manual day/night (Not available with (UVC) rear vision camera.) Headliner, cloth, over driver and passenger Visors, driver and front passenger, cloth, padded Assist handles, driver and right-front passenger Lighting, interior with dome light and door handle-activated switches GMC Connected Access capable (Included and only available with (UE1) OnStar. Subject to terms. See onstar.com or dealer for details.) --- SAFETY Brake/transmission shift interlock for automatic transmissions Hill Start Assist --- Audio:4G LTE Wi-Fi Hotspot capable (Included and only available with (UE1) OnStar. Terms and limitations apply. See onstar.com or dealer for details.)