GMC Terrain: Automatic Transmission / Tow/Haul Mode

GMC Terrain 2018-2026 Owners Manual / Driving and Operating / Automatic Transmission / 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. It maintains vehicle speed by automatically implementing a shift pattern that uses the engine and the transmission to slow the vehicle. The system will automatically command downshifts to reduce vehicle speed. The normal shift pattern will return once the vehicle is on a low grade or when the accelerator pedal is pressed.

While in the Electronic Range Select (ERS) mode, grade braking is deactivated, allowing the driver to select a range and limiting the highest gear available. Grade braking is available for normal driving and in Tow/Haul Mode.

See Automatic Transmission.

    Manual Mode

    Electronic Range Select (ERS) 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...

    Brakes

    ..

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Driver Mode Control


    The Driver Mode Control has the following Modes: Tour (FWD), All-Wheel Drive (AWD), Snow/Ice, and Tow/Haul. Turn the Driver Mode Control knob on the center console to make a mode selection. Continue turning the knob through the available modes. The selected mode’s icon will light up on the knob. The vehicle must be in Park to switch between modes. Driver Mode Control Knob for Front-Wh..

    GMC Terrain 2018-2026 Owners Manual: Airbag System Check


    The airbag system does not need regularly scheduled maintenance or replacement. Make sure the airbag readiness light is working. See Airbag Readiness Light. Caution If an airbag covering is damaged, opened, or broken, the airbag may not work properly. Do not open or break the airbag coverings. If there are any opened or broken airbag coverings, have the airbag covering and/or airbag mod..

    Copyright © 2026 www.gmcterrain2.com