6-speed automatic transmission

This smooth-shifting electronically controlled transmission with overdrive includes:

Tow/Haul mode

• Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
• Raises downshift points to use engine compression to help slow the truck instead of merely braking

Powertrain Grade Braking
• Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
• Reduces brake wear and increases vehicle control

Cruise Grade Braking
• Downshifts automatically to slow the truck as it drives downhill if it exceeds the cruise set speed by a certain amount