Keyless (Push-Button) Start; Electric Parking Brake - GMC SIERRA 2500 HEAVY DUTY 2024 Getting To Know Your

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KEYLESS (PUSH-BUTTON) START

The Remote Keyless Entry transmitter (key fob) must be in the vehicle to turn on the
ignition.
STARTING THE ENGINE/ON
With the transmission in Park or Neutral,
press and hold the brake pedal and then
press the ENGINE START/STOP button
to start the engine. The green button
indicator will illuminate.
Note: If the key fob battery is weak, place the
key fob in the pocket in the center storage
compartment (under the bench seat), left center
console cupholder (bucket seats) or in the center
console pocket next to the cupholders (uplevel
models) to enable the engine to start. Replace
the key fob battery as soon as possible.
STOPPING THE ENGINE/OFF
Shift to Park and then press the ENGINE START/STOP button to turn off the engine.
The green button indicator will turn off.
Power will be available for 10 minutes to operate the audio system until the driver's
door is opened and to operate the windows and sunroof
ACCESSORY MODE
With the engine off and the brake pedal not depressed, press the ENGINE START/
STOP button to place the ignition in Accessory Mode. The amber button indicator will
illuminate. Press and hold the ENGINE START/STOP button for several seconds to
place the ignition in Service Mode to operate additional systems.

ELECTRIC PARKING BRAKE

To apply the parking brake, press the
Parking Brake button on the left
side of the instrument panel.
To release the parking brake, turn on
the ignition, press the brake pedal and
then press the
Optional equipment
F
button.
until any door is opened.
F
See Driving and Operating in your Owner's Manual.
See Driving and Operating in your Owner's Manual.
Some equipment shown may not be included in your vehicle.
5

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