Engine Heater - Chevrolet Impala 2018 Owner's Manual

170 Driving and Operating
starting it. Operate the engine
and transmission gently until
the oil warms up and lubricates
all moving parts.
Stop/Start System
Warning
Exiting the vehicle without first
shifting into P (Park) may cause
the vehicle to move. You or others
may be injured. Because the
vehicle may have an auto engine
stop/start feature, the vehicle's
engine might seem to be shut off;
however, once the brake pedal is
released, the engine will start up
again.
Shift to P (Park) and turn the
ignition off before exiting the
vehicle.
If equipped with the 2.5L L4 engine,
the vehicle has a fuel saving stop/
start system to shut off the engine to
help conserve fuel.
Auto Engine Stop/Start
When the brakes are applied and
the vehicle is at a complete stop,
the engine may turn off. When
stopped, the tachometer displays
AUTO STOP. See Tachometer
0 113. When the brake pedal is
released or the accelerator pedal is
pushed, the engine will restart.
Auto stop may be deactivated if:
A minimum vehicle speed is not
reached.
The engine or transmission is
not at the required operating
temperature.
The outside temperature is not
in the required operating range,
typically below 10 °C (14 °F) or
above 50 °C (122 °F).
The shift lever is in any gear
other than D (Drive).
The battery has been recently
disconnected.
The battery charge is low.
The interior comfort level has not
reached the required level for
the climate control system or
defog settings. Use the eco
(green indicator on) air
conditioning mode for better
efficiency. See Dual Automatic
Climate Control System 0 150.
The auto stop time is greater
than two minutes.

Engine Heater

The engine coolant heater,
if equipped, can help in cold
weather conditions at or below 18 °
C (0 °F) for easier starting and better
fuel economy during engine
warm-up. Plug in the coolant heater
at least four hours before starting
the vehicle. An internal thermostat
in the plug end of the cord will
prevent engine coolant heater
operation at temperatures above
18 °C (0 °F).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The electrical
cord is on the driver side of the