Regenerative Braking; Vapor Canister Purge - Chevrolet Silverado 2014 Owner's Manual Supplement

6 6 Driving and Operating
Regenerative Braking Mode
Traction Motor/
Transmission
Engine/Generator
OFF or operating Battery
Regenerative
(Regen) Braking
Regenerative (Regen) braking enables
the traction motor to operate as a
generator when coasting or braking.
This provides energy to recharge the
high voltage battery. Both the hydraulic
brakes and drive motor provide braking.
The braking system is computer
controlled and blends the regenerative
braking with the conventional hydraulic
disc brakes to meet any requirements
for deceleration. In the event of a
controller problem, as with all hydraulic
assist vehicles, the brake pedal maybe
harder to push, and the stopping
distance may be longer.

Vapor Canister Purge

If the truck has been used in battery
electric mode or used such that the
engine has not started for 5 days, the
engine will automatically come on
when the vehicle is powered up or
after the battery is at or below 80% to
purge the vapor canister. The battery
will not charge above 90% if a canister
purge is required. The vehicle must
be driven for approximately 15 to 30
minutes (depending on driving cycle)
to purge the canister. Once the canister
is purged, the vehicle will return to the
programmed operating cycle.
Engine May Start
Automatically
The truck inverter/controller module
monitors vehicle information to
determine when the engine must run.
When the vehicle is turned on, the
engine may start under any of the
following conditions:
• WARNING: Engine may start
if the battery falls below
20% any time the key is on.
• Engine must run to purge the
vapor canister.