Vehicle Operational States
Power flows to or from the front and rear
wheels depending on operational state
and driving conditions.
•
Idling: The vehicle is running and in park
(P). The engine and/or the high voltage
battery are on.
•
Electric driving: The vehicle is running
and in drive (D) or neutral (N). The high
voltage battery provides power to the
wheels.
•
Hybrid driving: The vehicle is running
and in drive (D) or neutral (N). The
engine and the high voltage battery
provide power to the wheels.
•
Regenerative braking: The vehicle is
running in drive (D) and is slowing
down. Power captured by the
regenerative braking system is sent
back to the high voltage battery.
Engine On Due To
The following conditions help explain why
the engine is on, and what you can do to
allow all electric operation.
•
Drive power: The engine is on due to
accelerator pedal pressure or speed
control activation. Reduce pressure on
the accelerator pedal or switch off the
speed control to return to full electric
mode.
•
High speed: The engine is on because
the vehicle speed exceeds the level for
full electric operation. Reduce the
speed to return to electric operation.
•
Heater setting: The engine is on
because of the heater setting. Reduce
or turn off the heater setting to return
to electric operation.
•
Neutral gear: The engine is on because
the vehicle is in neutral (N). Shift out
of neutral (N) to return to electric
operation.
•
Engine cold: The engine is on because
it is cold. The vehicle returns to electric
operation once the engine is sufficiently
warm.
•
Battery charging: The engine is on to
charge the high voltage battery. The
vehicle returns to electric operation
once the battery is charged.
•
Low gear: The engine is on because the
vehicle is in low (L). Shift out of low (L)
to return to electric operation.
•
Normal operation: The engine is on to
optimize vehicle operation. The vehicle
returns to electric operation when
possible.
•
Engine braking active: The engine is on
to provide increased powertrain
braking. This can occur when you turn
on the grade assist feature, when
speed control is on or when driving with
your foot off the accelerator pedal.
Turning off grade assist or speed
control may allow the vehicle to return
to electric operation.
•
Battery temperature: The engine is on
due to high or low high voltage battery
temperature. This is a normal operating
condition. The vehicle returns to
electric operation when possible.
•
Drive mode: The engine is on due to the
drive mode selection. Select an
appropriate drive mode for electric only
operation.
HOW DOES POWER FLOW WORK
- PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
E304437
The power flow information for
your plug-in hybrid vehicle is
available through the Home
screen or under Apps.
184
Hybrid Electric Vehicle Information - Full Hybrid Electric Vehicle (FHEV)/
Plug-In Hybrid Electric Vehicle (PHEV)