Chevrolet 4500 HD 2023 Manual page 195

194 Driving and Operating
takes you out of cruise control. Many
drivers find this to be too much trouble and
do not use cruise control on steep hills.
Returning to Cruise Control Driving
If you have canceled cruise control under
the following conditions, you can return to
the cruise control driving condition before
cancellation when you operate and release
the cruise control resume switch. The
moment the resume switch is released, the
cruise set indicator light comes on.
When pressing the brake pedal.
When the selector lever is shifted to the
N position (models without AEB).
When the selector lever is shifted to the
D position (models with AEB).
Turning on the exhaust brake switch
(models with AEB).
When the vehicle speed decreases to
40 km/h (25 MPH) or less, it is not possible
to return to the cruise control driving. You
must reset the cruise control.
If the cruise control is turned back on while
the vehicle speed exceeds what is set prior
to the cancellation of cruise control, the set
vehicle speed cannot be changed until the
vehicle reaches to the set speed. Also, the
vehicle speed must be 1 MPH below the
previously set vehicle speed.
If you hold the switch at the +RES position,
the vehicle will keep going faster until you
release the switch or apply the brake. So
unless you want to go faster, do not hold
the switch at the +RES position.
Exhaust Brake Function (Models
without AEB)
Models Equipped with Exhaust
Brake-interlocked Cruise
Automatic activation of the exhaust brake
during cruise control driving suppresses an
increase in the speed on a downhill slope,
decreasing the need for the driver to apply
the regular brake pedal. The exhaust brake
does not activate when the exhaust brake
switch is turn off.
The maximum slope angle at which the
system can control the vehicle speed
increase is different depending on the load
the vehicle is carrying.
Automatic Activation and Automatic Release
of Exhaust Brake
The exhaust brake is engaged when the
vehicle speed exceeds the set speed on a
downhill slope.
The exhaust brake is disengaged when the
vehicle slows down close to the set speed.
Exhaust Brake Function (Models
with AEB)
Models Equipped with Exhaust
Brake-interlocked Cruise
Automatic activation of the exhaust brake
during cruise control driving suppresses an
increase in the speed on a downhill slope,
decreasing the need for the driver to apply
the regular brake pedal. The exhaust brake
activates when the exhaust brake switch is
turned off.
The maximum slope angle at which the
system can control the vehicle speed
increase is different depending on the load
the vehicle is carrying.