5.3L SFI FLEX-FUEL V8 (VORTEC) ENGINE -inc: variable valve timing (VVT) active fuel management (STD) XM satellite radio -inc: digital quality sound w/coast-to-coast signal coverage *Includes 3 free trial months beyond which service fees apply* Warning buzzers key-in-ignition headlamp-on Tools mechanical jack & wheel wrench Tire pressure monitoring system (does not apply to spare tire) Steering wheel mounted audio system controls Stabilitrak electronic stability control system w/Proactive Roll Avoidance Spare tire lock Solar-Ray tinted glass Side-guard door beams. This GMC Sierra 1500 has a strong Gas/Ethanol V8 5.3L/323 engine powering this Automatic transmission.*This GMC Sierra 1500 SLT Has Everything You Want *Remote vehicle starter system -inc: (2) extended-range key fob transmitters remote keyless entry remote vehicle start illuminated entry panic & vehicle content theft alarms Recovery hooks -inc: (2) front mounted at the front of each frame side member Rear split-folding stadium style bench seat Rear seat rear facing child restraint provisions Rear seat child safety seat top tether anchor (LATCH) Pwr windows -inc: front express-down backlit switches lockout feature Pwr steering Programmable pwr door locks w/key ignition lockout feature Personalization feature -inc: auto locking/unlocking seat position recall perimeter lighting remote lock/unlock feedback headlamps on at exit curb view assist display units (E/M) OnStar in-vehicle communications & assistance service -inc: (1) year Safe & Sound plan Multi-leaf spring rear suspension Moulded plastic grille w/chrome surround Lighting -inc: dome w/map reading lamps illuminated entry backlit IP switches Leather-wrapped tilt sport steering wheel Leather seat trim Intermittent windshield wiper system w/demand-type washer Instrumentation -inc: speedometer tachometer odometer w/trip meter fuel level engine temp volt meter oil pressure Independent front suspension w/coil springs High-capacity air cleaner HD trailering special equipment -inc: trailering hitch platform 2 receiver 7-wire harness (for park lamps backup lamps right turn left turn electric brake lead battery & ground) independent fused trailering circuits mated to a 7-way sealed connector (4) blunt cut wires in the instrument panel harness for an aftermarket trailer brake controller a single blunt cut wire in the instrument panel harness for a centre high-mounted stop lamp extra capacity trans cooling high-capacity air cleaner.* The Experts' Verdict...*As reported by KBB.com: If you have serious work to do and want to burn less fuel doing it this is your truck. While Ford and Dodge full-sizers are new and much improved for 2010 GMC?s recently redesigned Sierra remains fully competitive is the only hybrid (with the exception of its twin at Chevrolet) and is by far the most fuel efficient on the road.