Engine Heater - Buick Enclave Owner's Manual

204 Driving and Operating
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
0 135. 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 between 10 °C (14 °F)
and 50 °C (122 °F).
The vehicle is in any gear other
than D (Drive).
The battery charge is low.
The interior comfort level has not
reached the required level for
the climate control system or
defog settings.
The Auto Stop time is greater
than two minutes.

Engine Heater

The engine heater can provide
easier starting and better fuel
economy during engine warm-up in
cold weather conditions at or below
0 °F ( 18 °C). Vehicles with an
engine heater should be plugged in
at least four hours before starting.
Some models may have an internal
thermostat in the cord which will
prevent engine heater operation at
temperatures above 0 °F ( 18 °C).
To Use the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The bundled
cord is on the driver side of the
engine compartment, in front of
the battery. See Engine
Compartment Overview 0 267.
Check the heater cord for
damage. If it is damaged, do
not use it. See your dealer for
a replacement. Inspect the
cord for damage yearly.
3. Plug the cord into a normal,
grounded 110-volt AC outlet.