Why does my cruise control work sometimes and sometimes it doesn t?

Why does my cruise control work sometimes and sometimes it doesn t?

Most of the time this is caused by a bad brake switch. If the switch is shorting out, then it will cause the computer to think that the brakes are being applied, which turns off the cruise control. If the switch is fine, then it may have a bad speed sensor or the cruise control switch itself is bad.

What causes the cruise control light blinking?

When the check engine light does come on the cruise control light will blink indicating that the cruise control has been disabled and the vehicle’s dynamic stability control light will come on indicating that it also has been disabled.

What can cause cruise control to stop working?

Four Reasons the Cruise Control In Your Vehicle Stopped Working

  1. Bad Speed Sensor.
  2. Bad Brake Pedal Switch.
  3. A Blown Fuse.
  4. Damaged Cruise Control Cable or Vacuum Actuator. Unlike today’s cutting-edge drive-by-wire and adaptive cruise control technology, the cruise control system in many vehicles is largely mechanical.

Why is the cruise control on my car not working?

Common Causes of Cruise Control Not Working. 1) Cruise Control Switch; 2) Brake Light Switch; 3) Blown Fuse; 4) Check Engine Warning Light; 5) Vehicle Speed Sensor; 6) Electrical Issues

Can a brake light disengage cruise control?

Brake Light Switch – As cruise control is automatically cancelled by depressing the brake, some vehicles may disengage cruise control if it cannot detect the brake light switch. Brake Lights – In some systems, cruise control is disabled when a brake light is blown.

How often does the cruise control go off?

While that is happening, the cruise control on/off doesn’t work or respond. After the minute is up, the indication goes off and then the cruise control will work. This happens about 25% of the time that I try to use cruise control. Any idea what could be causing this?

How does a cruise control module detect speed?

The only way your cruise control module is going to know how fast the vehicle is moving is if the vehicle speed sensors feed this information to it. If the module cannot detect the speed because of faulty speed sensors, then the cruise control system will automatically deactivate.