What causes the cruise control to stop working?

When the fuse of for the cruise control blows, the cruise control will stop working altogether. A vehicle’s cruise control may stop working if the vacuum actuator has stopped working or if there is damage to the vacuum hoses. The system may also fail if the cable linking the actuator to the throttle is broken.

What deactivates cruise control?

Deactivating cruise control To deactivate cruise control: Press the steering wheel button (2). Press the steering wheel button ◀ (1) or ▶ (3) to change to another function. The driver display’s symbol for cruise control (4) is extinguished – which deletes the set/stored speed.

How do I reset my cruise control?

The cruise control system will be reset to the speed you are travelling when you release the knob. For a quick reset, accelerate with the accelerator pedal to the desired speed, then press and release the “SET/COAST” button.

What does cruise control inoperative mean?

If your Mercedes-Benz vehicle is displaying a cruise control inoperative warning message on the instrument cluster, it means that you can no longer use the cruise control. Cruise Control allows you to take the foot off the gas pedal while still controlling the steering wheel.

How do I know if my cruise control switch is bad?

Symptoms of a Bad or Failing Cruise Control Vacuum Bleed Switch

  1. Cruise control does not disengage when pedal is pressed.
  2. Cruise control disengages on its own intermittently.
  3. Hissing noise coming from under the dash.

Is there a fuse for cruise control?

If your cruise control system is electronically controlled, it will have an associated fuse. If there’s an electrical problem, the fuse will fail in order to keep other wiring from getting damaged. Try replacing the fuse. If it solves the problem and the cruise control keeps working, that’s great!

Can you disable cruise control?

To cancel cruise control, tap the brakes, pull the stalk towards you or turn the system off with the ON/OFF button. And finally, you can disable the distance holding feature by pushing the cruise control stalk away and holding it until the indicator disappears and the conventional cruise control indicator lights up.

What is a speed control deactivation switch?

When it comes time to slow or stop the vehicle, the driver must disengage the device. This is usually done by tapping the brake pedal. This tap of the brake pedal initiates the speed control deactivation switch (SCDS), which then disables the cruise control and allows the car to slow down.

How do you troubleshoot cruise control?

Troubleshooting Your Car’s Cruise Control

  1. Step 1 – Check the Speed Sensor. Check the speed sensor wiring and look for signs of damage.
  2. Step 2 – Check the Fuse. A power surge can easily blow out the fuse of your cruise control mechanism.
  3. Step 3 – Check the Vacuum Lines.
  4. Step 4 – Check the Throttle Linkage.

How do you test a cruise control switch?

To test this, simply start your engine and press the “on” button on your cruise control switch. If the cruise control light illuminates on your dash or instrument cluster, the switch should be working fine. The next step will be to complete a road test to truly examine if your repair was completed correctly.

Is it expensive to fix cruise control?

If the problem you’re facing is with your cruise control switch, then you’re looking at probably between $150 and $350 to get it repaired including the cost of parts and labour.