GMC Terrain 2018 Owner's Manual page 202

N : In this position, the engine does
not connect with the wheels. To
restart the engine when the vehicle
is already moving, use
N (Neutral) only.
Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle.
Caution
The vehicle is not designed to
stay in N (Neutral) for extended
periods of time. It will
automatically shift into P (Park).
To shift into N (Neutral), press the
N (Neutral) button until the
N (Neutral) indicator displays.
To shift out of N (Neutral):
1. Bring the vehicle to a
complete stop.
2. Shift to the desired gear.
Car Wash Mode
This vehicle includes a Car Wash
Mode that allows the vehicle to
remain in N (Neutral) for use in
automatic car washes.
Driving and Operating
Caution
The vehicle is not designed to
stay in N (Neutral) for extended
periods of time. It will
automatically shift into P (Park) if
left in Car Wash Mode.
Car Wash Mode (Engine Off
Driver in Vehicle) Gasoline
Engine Only
To place the vehicle in N (Neutral)
with the engine off and the vehicle
occupied:
1. Drive to the entrance of the
car wash.
2. Apply the brake pedal.
3. Shift to N (Neutral).
4. Turn off the engine and release
the brake pedal.
5. The indicator should continue
to show N. If it does not, repeat
Steps 2 4.
6. The vehicle is now ready for
the car wash.
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