GMC Terrain: Starting and Operating / Ignition Positions

GMC Terrain. Ignition Positions

The vehicle has an electronic keyless ignition with pushbutton start.

The Remote Keyless Entry (RKE) transmitter must be in the vehicle for the system to operate. If the pushbutton start is not working, the vehicle may be near a strong radio antenna signal causing interference to the Keyless Access system. See Remote Keyless Entry (RKE) System Operation.

To shift out of P (Park), vehicles with a gasoline engine must be turned on, and the brake pedal must be applied. For vehicles with a diesel engine, the vehicle does not need to be on to shift out of P (Park). See Shifting out of Park.

Stopping the Engine/Off (No Indicator Lights) : When the vehicle is stopped, press ENGINE START/STOP once to turn the engine off.

If the vehicle is in P (Park), the ignition will turn off, and Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP).

If the vehicle is in R (Reverse), D (Drive) or L (Low), the vehicle will shift to P (Park), the ignition will turn off, and Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP).

If the vehicle is in N (Neutral), the ignition will return to ACC/ ACCESSORY and display the message SHIFT TO PARK in the Driver Information Center (DIC). When the vehicle is shifted into P (Park), the ignition system will turn off.

The vehicle may have an electric steering column lock. The lock is activated when the vehicle is turned off and either front door is opened. A sound may be heard as the lock actuates or releases. The steering column lock may not release with the wheels turned off center. If this happens, the vehicle may not start. Move the steering wheel from left to right while attempting to start the vehicle. If this does not work, the vehicle needs service.

Do not turn the engine off when the vehicle is moving. This will cause a loss of power assist in the brake and steering systems and disable the airbags.

If the vehicle must be turned off in an emergency:

  1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This may deplete power assist, requiring increased brake pedal force.
  2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving. After shifting to N (Neutral), firmly apply the brakes and steer the vehicle to a safe location.
  3. Come to a complete stop and shift to P (Park).

Set the parking brake. See Electric Parking Brake. Press ENGINE START/STOP to turn the vehicle off.

Warning

Turning off the vehicle while moving may cause loss of power assist in the brake and steering systems and disable the airbags. While driving, only shut the vehicle off in an emergency.

If the vehicle cannot be pulled over and must be shut off while driving, press and hold ENGINE START/ STOP for longer than two seconds, or press twice in five seconds.

ACC/ACCESSORY (Amber Indicator Light) : This mode allows you to use some electrical accessories when the engine is off.

With the ignition off, pressing the button one time without the brake pedal applied will place the ignition system in ACC/ACCESSORY.

The ignition will switch from ACC/ACCESSORY to OFF after five minutes to prevent battery rundown.

ON/RUN/START (Green Indicator Light) : This mode is for starting and driving. With the ignition off and the brake pedal applied, pressing the button once will turn the ignition on. Once engine cranking begins, release the button. Engine cranking will continue until the engine starts. See Starting the Engine. The ignition will then remain in on.

Service Mode

This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle off and the brake pedal not applied, pressing and holding ENGINE START/STOP for more than five seconds will place the vehicle in Service Mode. The instruments and audio systems will operate as they do in ON/RUN, but the vehicle will not be able to be driven. The engine will not start in Service Mode. Press ENGINE START/STOP again to turn the vehicle off.

    New Vehicle Break-In

    Caution The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: Do not drive at any one constant speed, fast or slow, for the first 800 km (500 mi)...

    Starting the Engine

    Shift the vehicle into P (Park) or N (Neutral). To restart the engine when the vehicle is already moving, use N (Neutral) only. Caution Do not try to shift to P (Park) if the vehicle is moving...

    Other information:

    GMC Terrain 2018-2022 Owners Manual: Winter Driving


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    GMC Terrain 2018-2022 Owners Manual: Driver Information Center (DIC) (Uplevel)


    The DIC displays are shown in the center of the instrument cluster in the Info App. See Instrument Cluster (Base and Midlevel) or Instrument Cluster (Uplevel). The displays show the status of many vehicle systems. or : Press to move up or down in a list...

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