CHEVROLET 2010 Express - Manual (Page 142)

Cruise Grade Braking (Six Speed
Automatic Transmission)
Cruise Grade Braking operates only while cruise control
is engaged in Tow/Haul mode. Cruise Grade Braking
assists in maintaining desired vehicle speeds when
driving on downhill grades in cruise control by
automatically shifting to lower gears when the cruise set
speed is exceeded.
While in the Range Selection Mode (RSM) mode, cruise
grade braking is not available.
See Automatic Transmission Operation (Six Speed
Automatic Transmission) on page 3-27 or Automatic
Transmission Operation (Four Speed Automatic
Transmission) on page 3-32.
Parking Brake
To set the parking brake, hold the regular brake pedal,
then push down the parking brake pedal.
If the ignition is on, the brake system warning light will
come on.
3-36