P0573 2018 GMC Sierra Code - Brake Switch Circuit High Voltage
Quick Answer
The P0573 code for a 2018 GMC Sierra indicates a problem with the brake switch circuit, specifically pointing to high voltage levels. Common causes include Faulty brake switch, Short circuit in the brake switch circuit, Wiring issues or corrosion in the brake switch circuit. 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
- P0573 2018 GMC Sierra indicates Brake Switch Circuit High Voltage.
- Common causes
- Common causes include Faulty brake switch, Short circuit in the brake switch circuit, Wiring issues or corrosion in the brake switch circuit.
- 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 P0573 2018 GMC Sierra Description
The P0573 code for a 2018 GMC Sierra indicates a problem with the brake switch circuit, specifically pointing to high voltage levels. The brake switch is a crucial component of the vehicle's braking system as it sends a signal to the vehicle's computer when the brake pedal is pressed. This signal is used to activate the brake lights and disengage cruise control, among other functions.
Common Causes of P0573 2018 GMC Sierra
- Faulty brake switch
- Short circuit in the brake switch circuit
- Wiring issues or corrosion in the brake switch circuit
- Faulty brake light bulbs
- Issues with the vehicle's computer system
Symptoms of P0573 2018 GMC Sierra
- Brake lights staying on constantly
- Inability to disengage cruise control when pressing the brake pedal
- Vehicle not starting
- Dashboard warning lights related to brake system
How to Fix P0573 2018 GMC Sierra
- Begin by diagnosing the root cause of the high voltage in the brake switch circuit using a diagnostic scanner.
- Inspect the brake switch for any visible signs of damage or wear, and replace if necessary.
- Check the wiring and connectors in the brake switch circuit for any corrosion or damage, repairing or replacing as needed.
- Test the brake lights and cruise control system to ensure they are functioning correctly after the repairs.
- Clear the diagnostic trouble codes from the vehicle's computer system and test drive the vehicle to confirm the issue has been resolved.
Cost to Fix P0573 2018 GMC Sierra
The cost of repairing a P0573 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue. However, a rough estimate for parts and labor could range from $100 to $300. It is important to note that diagnostic time and labor rates at auto repair shops can vary based on location, vehicle make and model, and engine type. It is advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about P0573 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code P0573 in a 2018 GMC Sierra?
- Common symptoms include the brake lights staying on constantly, cruise control not working, and potential issues with shifting out of park.
2. What does the OBDII code P0573 Brake Switch Circuit High Voltage mean for a 2018 GMC Sierra?
- This code indicates that the brake switch circuit is registering a higher-than-normal voltage, potentially causing various brake-related issues.
3. What are the possible causes of OBDII code P0573 in a 2018 GMC Sierra?
- The possible causes include a faulty brake light switch, wiring issues in the brake light circuit, a malfunctioning brake pedal position sensor, or a problem with the vehicle's electronic control module (ECM).
4. How can I diagnose the OBDII code P0573 in my 2018 GMC Sierra?
- Diagnosing this code involves checking the brake light switch for proper operation, inspecting the wiring for any damage or corrosion, and testing the brake pedal position sensor using a multimeter.
5. Is it safe to continue driving with OBDII code P0573 illuminated in a 2018 GMC Sierra?
- It is not recommended to drive with this code active, as it can affect the vehicle's brake system functionality and compromise safety.
6. Can I repair OBDII code P0573 in my 2018 GMC Sierra myself?
- Depending on your mechanical skills, you may be able to replace the brake light switch or repair wiring issues yourself. However, more complex repairs may require professional assistance.
7. How much does it typically cost to repair OBDII code P0573 in a 2018 GMC Sierra?
- The cost of repairing this code can vary based on the underlying cause. Simple fixes like replacing the brake light switch may cost around $50-$100, while more involved repairs could be several hundred dollars.
8. Will resetting the OBDII code P0573 in my 2018 GMC Sierra make it go away permanently?
- Resetting the code may temporarily turn off the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.
9. Can OBDII code P0573 in a 2018 GMC Sierra cause the vehicle to fail an emissions test?
- Yes, if the code is not resolved and the Check Engine light is illuminated during an emissions test, it is likely to result in a failed inspection.
10. How long does it typically take to repair OBDII code P0573 in a 2018 GMC Sierra?
- The repair time can vary depending on the specific cause of the code and the complexity of the fix. Simple repairs may take an hour or two, while more complicated issues could require several hours or more.
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