P0572 2018 GMC Sierra Code - Brake Switch Circuit Low Voltage
Quick Answer
The P0572 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the brake switch circuit having low voltage. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning brake light switch. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0572 2018 GMC Sierra indicates Brake Switch Circuit Low Voltage.
- Common causes
- Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning brake light switch.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0572 2018 GMC Sierra Description
The P0572 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the brake switch circuit having low voltage. The brake switch is a crucial component in the vehicle's braking system, as it is responsible for activating the brake lights when the brake pedal is pressed. When the brake switch circuit is experiencing low voltage, it can lead to issues with the brake lights not functioning properly, which can compromise the safety of the vehicle.
Common Causes of P0572 2018 GMC Sierra
- Faulty brake switch.
- Damaged wiring or connectors in the brake switch circuit.
- Malfunctioning brake light switch.
- Issues with the vehicle's electronic control module (ECM).
- Corrosion or moisture in the brake switch circuit.
Symptoms of P0572 2018 GMC Sierra
- Brake lights not illuminating when the brake pedal is pressed.
- Cruise control not engaging or disengaging properly.
- Inability to shift out of park.
- ABS warning light illuminated on the dashboard.
- Check engine light on with the P0572 DTC stored in the vehicle's computer.
How to Fix P0572 2018 GMC Sierra
- Begin by conducting a thorough inspection of the brake switch, wiring, and connectors to identify any visible damage or corrosion.
- Test the brake switch using a multimeter to check for proper voltage and continuity.
- Replace the brake switch if it is found to be faulty.
- Repair or replace any damaged wiring or connectors in the brake switch circuit.
- Clear the DTC from the vehicle's computer using a diagnostic scan tool and test the brake lights to ensure they are functioning correctly.
Cost to Fix P0572 2018 GMC Sierra
The typical repair costs for addressing a P0572 code in a 2018 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops. It is recommended to obtain local estimates for a more accurate cost estimate.
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