In some cases, brake lights may stay on all the time, or come on randomly, without pressing the brake pedal. This can cause the Check Engine or ABS system warning light to come on on the dash. Often, the brake light switch could be sticking and work intermittently. In cars with a push-button start system, a faulty brake light switch can cause the vehicle not to start. If the switch is bad, the brake lights won't operate and the transmission shifter will not come out of the "Park" position. The most common symptom of a faulty brake light switch is when brake lights don't come on or stay on all the time.Ī faulty brake light switch can cause many problems. Inside, it has a one- or two-way electric switch. In most cars, the brake light switch is installed right above the brake pedal. A car with a faulty brake light switch is UNSAFE to drive. Second, it sends a signal to the vehicle's computer that brakes are applied. First, it turns on the brake lights when a driver presses the brake pedal. The brake light switch serves two major functions. Many vehicle systems, including Push-Button start, Antilock Brakes and Vehicle Stability Control, cannot operate if a brake light switch is not working properly. Signs of automatic transmission problemsīrake light switch is installed above the brake pedal.How to check the engine when buying a used car. How to get the best deal on a used car?.What you should know when buying a used car.
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