Fast idle system, Fast idle system -19, Driving and operating 9-19 – GMC 2012 Savana User Manual

Page 227

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Black plate (19,1)

GMC Savana Owner Manual - 2012 - 2nd - 11/11/11

Driving and Operating

9-19

When the Low Fuel warning
lamp is on and the FUEL LEVEL
LOW message is displayed in
the Driver Information Center
(DIC), the Computer-Controlled
Cranking System is disabled to
prevent possible vehicle
component damage. When this
happens, hold the ignition switch
in the START position to
continue engine cranking.

Notice: Cranking the engine for
long periods of time, by returning
the key to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.

2. If the engine does not start after

5-10 seconds, especially in very
cold weather (below −18°C or

0°F), it could be flooded with too

much gasoline. Try pushing the
accelerator pedal all the way to

the floor and holding it there as
you hold the key in START for
up to 15 seconds. Wait at least
15 seconds between each try, to
allow the cranking motor to cool
down. When the engine starts,
let go of the key and accelerator.
If the vehicle starts briefly but
then stops again, do the same
thing. This clears the extra
gasoline from the engine. Do not
race the engine immediately
after starting it. Operate the
engine and transmission gently
until the oil warms up and
lubricates all moving parts.

Notice: If you add electrical parts
or accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See Add-On Electrical Equipment
on page 9‑58
.

Fast Idle System

If the vehicle has this feature it is
available only with cruise control.
The manual fast idle switch is
operated using the cruise control
buttons located on the left hand side
of the steering wheel.

This system can be used to
increase engine idle speed
whenever the following conditions
are met:

.

The park brake is set.

.

The brake pedal is not pressed.

.

The vehicle must not be moving
and the accelerator must not be
pressed.

To control the fast idle:

.

To enable the Fast Idle System,
press and release the Cruise
Control On/Off button and
ensure that the switch LED is lit.

.

Press and release the Cruise
Control Set switch. Engine
speed will be held at
approximately 1200 RPM.

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