Cruise Grade Braking is available on the 6.6L
DURAMAX
®
diesel engine. Cruise Grade Braking
monitors a vehicle’s cruise state, engine torque,
acceleration, vehicle speed, and the cruise set
speed. Using this information, it detects when the
truck is accelerating on a downhill grade and will
automatically downshift to slow the vehicle if it
exceeds the cruise set speed by a certain amount.
See
Cruise Control on page 217
for more
information.
The Tow/Haul mode and Grade Braking shift
modes can be activated by pressing the button on
the end of the shift control stalk. If your vehicle
has the DURAMAX
®
diesel Engine or the
8.1L VORTEC™ gasoline engine, Grade Braking
is only available while the Tow/Haul Mode is
selected. While in the Range Selection Mode,
Grade Braking is deactivated allowing the driver to
select a desired range of gears.
See
Automatic Transmission Operation on
page 140
for more information.
Also see
Towing a Trailer on page 429
for more
information.
Manual Transmission Operation
Five-Speed
(VORTEC™ 6.0L V8 Engine)
Here is how to operate
your transmission.
FIRST (1) is intended only for heavy loads or
trailer towing and is not recommended for normal
driving.
During the first 500 miles (805 km) of vehicle use,
start your vehicle moving in FIRST (1). This
allows clutch components to break-in properly.
149
Summary of Contents for 2007 Sierra 1500 Pickup
Page 6: ...These are some examples of symbols that may be found on the vehicle 6...
Page 24: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 24...
Page 206: ...NOTES 206...
Page 209: ...NOTES 209...
Page 354: ...NOTES 354...
Page 464: ...NOTES 464...
Page 484: ...When you open the hood on the 8 1L V8 engine here is what you will see 484...
Page 604: ...604...
Page 612: ...NOTES 612...
Page 633: ...Engine Drive Belt Routing A Air Conditioning Compressor V6 Engines V8 Engines 633...