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

    For information on the Tow/Haul Mode, see Driver Mode Control. Automatic Engine Grade Braking Automatic Engine Grade Braking assists when driving downhill...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Online Owner Center


    Online Owner Experience (U.S.) my.gmc.com The GMC online owner experience is a one-stop resource that allows interaction with GMC and keeps important vehicle-specific information in one place. Membership Benefits : Download owner’s manuals and view vehicle-specific how-to videos...

    GMC Terrain 2018-2025 Owners Manual: Door Locks


    To lock or unlock the vehicle from the outside, press or on the Remote Keyless Entry (RKE) transmitter. : Press to lock the doors. : Press to unlock the doors. To manually unlock a door from inside the vehicle, pull once on the door handle to unlock it, and a second time to open it...

    Copyright © 2025 www.gmcterrain2.com