GMC Terrain: Ride Control Systems / Traction Control/Electronic Stability Control. System Operation

GMC Terrain 2018-2021 Owners Manual / Driving and Operating / Ride Control Systems / Traction Control/Electronic Stability Control. System Operation

System Operation

The vehicle has a Traction Control System (TCS) and StabiliTrak/ Electronic Stability Control (ESC), an electronic stability control system. These systems help limit wheel slip and assist the driver in maintaining control, especially on slippery road conditions.

TCS activates if it senses that any of the drive wheels are spinning or beginning to lose traction. When this happens, TCS applies the brakes to the spinning wheels and reduces engine power to limit wheel spin.

StabiliTrak/ESC activates when the vehicle senses a difference between the intended path and the direction the vehicle is actually traveling. StabiliTrak/ESC selectively applies braking pressure to any one of the vehicle wheel brakes to assist the driver in keeping the vehicle on the intended path.

If cruise control is being used and TCS or StabiliTrak/ESC begins to limit wheel spin, cruise control will disengage. Cruise control may be turned back on when road conditions allow.

Both systems come on automatically when the vehicle is started and begins to move. The systems may be heard or felt while they are operating or while performing diagnostic checks. This is normal and does not mean there is a problem with the vehicle.

It is recommended to leave both systems on for normal driving conditions, but it may be necessary to turn TCS off if the vehicle gets stuck in sand, mud, ice, or snow. See If the Vehicle Is Stuck and “Turning the Systems Off and On” later in this section.

GMC Terrain. Traction Control/Electronic Stability Control. System Operation

The indicator light for both systems is in the instrument cluster. This light will:

  • Flash when TCS is limiting wheel spin
  • Flash when StabiliTrak/ESC is activated
  • Turn on and stay on when either system is not working

If either system fails to turn on or to activate, a message displays in the Driver Information Center (DIC), and GMC Terrain. Traction Control/Electronic Stability Control. System Operation comes on and stays on to indicate that the system is inactive and is not assisting the driver in maintaining control. The vehicle is safe to drive, but driving should be adjusted accordingly.

If GMC Terrain. Traction Control/Electronic Stability Control. System Operation comes on and stays on:

  1. Stop the vehicle.
  2. Turn the engine off and wait 15 seconds.
  3. Start the engine.

Drive the vehicle. If GMC Terrain. Traction Control/Electronic Stability Control. System Operation comes on and stays on, the vehicle may need more time to diagnose the problem. If the condition persists, see your dealer.

    Ride Control Systems

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    (TCS) / (ESC). Turning the Systems Off and On (Uplevel Cluster)

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