GMC Terrain: Automatic Transmission / Manual Mode

Electronic Range Select (ERS) Mode

GMC Terrain. Manual Mode

ERS or manual mode allows for the selection of the range of gear positions. Use this mode when driving downhill or towing a trailer to limit the top gear and vehicle speed. The shift position indicator within the Driver Information Center (DIC) will display a number next to the L indicating the highest available gear under manual mode and the driving conditions when manual mode was selected.

To use this feature:

  1. With the vehicle in D (Drive), press the L (Low) button.
  2. Press the plus or minus button on the center stack to increase or decrease the gear range available.

When shifting to L (Low), the transmission will shift to a preset lower gear range. For this preset range, the highest gear available is displayed next to the L in the DIC. See Driver Information Center (DIC) (Base and Midlevel) or Driver Information Center (DIC) (Uplevel). All gears below that number are available to use. For example, when 4 (Fourth) is shown next to the L, 1 (First) through 4 (Fourth) gears are shifted automatically. To shift to 5 (Fifth) gear, press the + (Plus) button or shift into D (Drive).

L (Low) will prevent shifting to a lower gear range if the engine speed is too high. If vehicle speed is not reduced within the time allowed, the lower gear range shift will not be completed. Slow the vehicle, then press the − (Minus) button to the desired lower gear range.

While using ERS, cruise control can be used.

    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. Car Wash Mode is not to be used for vehicle towing...

    Tow/Haul Mode

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    Other information:

    GMC Terrain 2018-2025 Owners Manual: Driver Assistance Systems


    This vehicle may have features that work together to help avoid crashes or reduce crash damage while driving, backing, and parking. Read this entire section before using these systems. Warning Do not rely on the Driver Assistance Systems. These systems do not replace the need for paying attention and driving safely...

    GMC Terrain 2018-2025 Owners Manual: (TCS) / (ESC). Turning the Systems Off and On (Uplevel Cluster)


    Caution Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged. At speeds of 56 km/h (35 mph) or above, this ability to turn off or on is disabled. TCS and StabiliTrak/ESC can be turned off or on using the DIC controls as follows: Press or to scroll to the Options application...

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