Engine: Vortec 5.3L V8 with Active Fuel Management, 320 horsepower and 345 lb.-ft. of torque. (Standard on 2WD models)
This 5.3L V8 engine delivers 320 hp at 5200 rpm and 345 lb.-ft. of torque at 4200 rpm.
When driving conditions require less power, the Active Fuel Management system temporarily allows the 5.3L V8 engine to shift automatically from eight cylinders to four, resulting in impressive fuel economy gains.
Engine: Vortec 5.3L V8 FlexFuel with Active Fuel Management, 310 horsepower and 335 lb.-ft. of torque. (Standard 4WD models)
Capable of running on either gasoline or E85 (a blend of 85% ethanol and 15% gasoline)(1) a mostly renewable US-grown fuel that helps reduce greenhouse gas emissions, the Vortec 5300 V8 SFI FlexFuel engine with Active Fuel Management delivers 310 hp at 5200 rpm and 335 lb.-ft. of torque at 4400 rpm.
When driving conditions require less power, the Active Fuel Management system temporarily allows the 5.3L V8 engine to shift automatically from eight cylinders to four, resulting in impressive fuel economy gains.
StabiliTrak Electronic Stability Control: Anti-roll system featuring Proactive Roll Avoidance.
With the StabiliTrak Electronic Stability Control System, sensors read many inputs and monitor driving and vehicle conditions. When sensors detect the vehicle is not responding appropriately to driver steering input, StabiliTrak engages the brake and powertrain systems to help the driver keep the vehicle on track.
Transmission: Four-speed automatic, electronically controlled with overdrive and tow haul mode.