GMC Terrain 2018 Owner's Manual page 187

186 Driving and Operating
If the light comes on and then goes
off, and it is known that the batteries
are charged, but the engine still will
not start, the vehicle needs service.
If the light does not come on when
the engine is cold, the vehicle
needs service.
If the batteries do not have enough
charge to start the engine, see
Battery - North America 0 278.
Check that the correct engine oil
has been used and changed at
appropriate intervals. If the wrong oil
is used, the engine may be harder
to start.
Be sure to use the proper fuel for
existing weather conditions. See
Fuel for Diesel Engines 0 233.
If the engine starts, runs a short
time, then stops, the vehicle needs
service.
Warning
Do not use gasoline or starting
aids, such as ether, in the air
intake. They could damage the
(Continued)
Warning (Continued)
engine, which may not be
covered by the vehicle warranty.
They could also cause a fire,
which could cause serious
personal injury.
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. The engine may restart
even while the brake is applied.
Shift to P (Park) and turn the
ignition off before exiting the
vehicle.
The vehicle has a fuel saving stop/
start system to shut off the engine
and 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 the
brake pedal is released or the
accelerator pedal is pressed, the
engine may 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 has been recently
disconnected.
The battery charge is low.