2018 GMC Sierra 1500 4WD Double Cab 143.5"

Rear axle, 3.42 ratio (Standard on 4WD V6 models. Available with (L83) 5.3L EcoTec3 V8 engine.)

Pickup box (Deleted when (ZW9) pickup box delete is ordered on Regular Cab.)

GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab or Double Cab 4WD models and (LV3) 4.3L EcoTec3 V6 engine.)

Transfer case, with floor-mounted shifter (Included with 4WD models only.)

Cooling, external engine oil cooler

Alternator, 150 amps

Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr maintenance-free with rundown protection and retained accessory power

Frame, fully-boxed, hydroformed front section

Steering, Electric Power Steering (EPS) assist, rack-and-pinion

Brakes, 4-wheel disc with DURALIFE rotors, 4-wheel antilock

Capless Fuel Fill

Exhaust, aluminized stainless-steel muffler and tailpipe

Cargo tie downs (4), movable upper

Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door

Bumper, front chrome lower

Bumper, rear chrome with bumper CornerSteps

CornerStep, rear bumper

4X4 chrome badge (Included and only available with 4X4 models.)

Grille surround, chrome (Not included when (SXL) Elevation Edition is ordered.)

Active aero shutters

Headlamps, high intensity discharge (HID) projector-beam with LED signature

Lamps, cargo area, cab mounted with switch on centre switch bank

Mirrors, outside manual, Black

Glass, solar absorbing, tinted

Tailgate and bed rail protection caps, top

Tailgate, locking utilizes same key as ignition and door

Door handles, Black

6-speaker audio system

Seat, rear full-width folding bench, 3-passenger (includes child seat top tether anchor) (Requires Double Cab model.)

Floor covering, Graphite-coloured rubberized-vinyl

Steering column, manual Tilt-Wheel

Instrumentation, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure

Driver Information Centre, 3.5-inch diagonal monochromatic display provides warning messages and basic vehicle information

Windows, power with driver express up and down and express down on all other windows (Standard on Crew Cab and Double Cab. On Regular Cab, included and only available with (PDD) Sierra Convenience Package.) (Standard on Crew Cab and Double Cab. On Regular Cab, included and only available with (PCR) Sierra Fleet Convenience Package.)

Cruise control, steering wheel-mounted

Air conditioning, single-zone

Assist handle, front passenger on A-pillar

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist

Air bags, dual-stage frontal and side-impact, driver and front passenger and head-curtain and seat-mounted side-impact, front and rear outboard seating positions with Passenger Sensing System

Teen Driver mode a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to encourage safe driving behavior. It can limit certain vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report gives you information on your teen's driving habits and helps you to continue to coach your new driver