CHEVROLET 2009 Silverado - Manual (Page 26)

Regenerative Braking
Regenerative braking is a hybrid technology that enables
the electric drive motor to operate as a generator when
coasting or braking. Energy from the moving vehicle
recharges the hybrid battery.
The hydraulic disc brakes work with the regenerative
braking to insure effective braking, such as when a high
braking demand is requested.
The braking system is computer controlled and blends
the regenerative braking with the conventional hydraulic
disc brakes to meet any requirements for deceleration.
The controller interprets the braking request and uses
regenerative braking, conventional hydraulic braking or a
combination of both as necessary. Because the controller
applies the hydraulic brakes through its high pressure
accumulator, you may occasionally hear the motor driven
pump when it recharges the system. This is normal.
See “Warning Lights, Gages, and Indicators” and “Driver
Information Center (DIC)” in the Index of the owner
manual. In the event of a controller problem, the brake
pedal may be harder to push and the stopping distance
may be longer.
Running the Vehicle While Parked
It is better not to park with the engine running. But if you
ever have to, here are some things to know.
{ CAUTION:
Exiting the vehicle, without first shifting into
P (Park), may cause the vehicle to move, and you
or others can be seriously injured. Because the
vehicle has the Automatic Engine Start/Stop
feature, the vehicle’s engine might seem to be shut
off when you come to a complete stop. However,
once the brake pedal is released, the vehicle can
move. The vehicle’s engine can also restart at
any time.
Shift to P (Park) and turn the ignition to LOCK/OFF,
before exiting the vehicle.
Follow the proper steps to be sure the vehicle will not
move. See “Shifting Into Park” in the owner manual
for more information.
If you are pulling a trailer, see Towing a Trailer on
page 4-2 for more information.
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