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  • GLC
  • SUV
  • 03/2020
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Function of cruise control

Cruise control regulates the speed to the value selected by the driver.

If you accelerate to overtake, for example, the stored speed is not deleted. If you remove your foot from the accelerator pedal after overtaking, cruise control will resume speed regulation back to the stored speed.

Cruise control is operated using the corresponding steering wheel buttons. You can store any speed above 20 km/h up to the maximum design speed or up to the set winter tyre limit.

Observe the notes on driving systems and your responsibility; you may otherwise fail to recognise dangers More.

Displays on the multifunction display
  •  (grey): cruise control is selected but not yet activated.

  •  (green): cruise control is active.

A stored speed appears along with the display.

The segments extending from the current stored speed to the end of the scale, or to the set winter tyre limit, light up in the speedometer.

System limits

Cruise control may be unable to maintain the stored speed on uphill gradients. The stored speed is resumed when the gradient evens out.

Change into a lower gear in good time on long and steep downhill gradients. Take particular note of this when driving a laden vehicle. By doing so, you will make use of the engine's braking effect. This relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly.

Do not use cruise control in the following situations:
  • In traffic situations which require frequent changes of speed, e.g. in heavy traffic, on winding roads.

  • On slippery roads. Accelerating can cause the drive wheels to lose traction and the vehicle could then skid.

  • If you are driving when visibility is poor.