Skip the auto shop - Our mechanics make house calls

Q: Brake light on with cruise control kicking off

asked by on

I sometimes have a problem with the braking system in my car that randomly occurs. The dashboard shows brake light illuminated, which usually happens simultaneously with the kickoff of the cruise control. At that moment, the brake light turns off if I apply the brakes. I took it to a shop but they couldn't recreate the problem, so it still happens occasionally. What could cause this? I appreciate your help.

Hi there. Most of the time this is caused by a bad brake switch. When the switch does not work the computer cannot tell when you apply the brakes, which will affect the braking and cruise control systems. It may also be a speed sensor, but that will usually turn on the check engine light also. If you would like to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose this.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Trunk won't open on my car

Go into your control setup in the instrument panel, under user controls, and make sure the trunk did not get turned off in the setup. If it did, then turn all of it back on and the trunk should open....

Q: Car has an electrical problem

The turn signal switch may have failed and caused other issues as it is tied to many circuits. The multi-function switch must be inspected and the circuits it covers to make sure there were no shorts. If the wiper pump...

Q: Car making grinding noise

There is a good chance that what you heard was the transmission. Transmissions are very complex systems. It is very likely that the transmission will need to be overhauled or even replaced, depending on what part of the transmission has...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...