AutoCodes – GMC – P0564 2018 GMC Sierra

P0564 2018 GMC Sierra Code - Cruise Control Multifunction Switch Circuit

Quick Answer

The Cruise Control Switch is an input to the Body Control Module (BCM). Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection. 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: P0564 2018 GMC Sierra indicates Cruise Control Multifunction Switch Circuit.
Common causes: Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection.
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 Popularity 285

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0564 2018 GMC Sierra Description

The Cruise Control Switch is an input to the Body Control Module (BCM). The BCM monitors the cruise control on/off, set/coast, resume/accelerate and cancel switches via the cruise control switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control switch signal circuit when a switch is applied. The Engine Control Module (ECM) receives the requested cruise control switch function from the BCM via a serial data message. The BCM monitors the cruise control switch. The BCM sets the OBDII code when the cruise control switch is not to factory specifications. The BCM detects an invalid voltage signal on the cruise control switch signal circuit for greater than 2 seconds and sends a serial data message to the ECM. The ECM sets the Diagnostic Trouble Code (DTC) when the message is received.

OBDII Code P0564 2018 GMC Sierra - Cruise Control Multifunction Switch Circuit - AutoCodes.com — P0564 2018 GMC Sierra Code - Cruise Control Multifunction Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P0564 2018 GMC Sierra?

Faulty Cruise Control Switch
Cruise Control Switch harness is open or shorted
Cruise Control Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P0564 2018 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0564 2018 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0564 2018 GMC Sierra code?

Need more information on how to fix the P0564 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0564 2018 GMC Sierra Code

1. What does the OBDII code P0564 mean on a 2018 GMC Sierra?

P0564 indicates an issue with the Cruise Control Multifunction Switch Circuit, suggesting the vehicleâ€™s computer has detected an abnormal signal from the cruise control switch.

2. What are the common symptoms of the P0564 code on a 2018 GMC Sierra?

Symptoms may include the cruise control not engaging, the cruise control turning off unexpectedly, or the Check Engine Light illuminating.

3. What causes the P0564 code to appear on a 2018 GMC Sierra?

Common causes include a faulty cruise control switch, damaged wiring or connectors in the circuit, or a malfunctioning clock spring.

4. Can I still drive my 2018 GMC Sierra with a P0564 code?

Yes, you can still drive the vehicle, but the cruise control system may not function properly. Itâ€™s best to address the issue promptly to restore full functionality.

5. How do I diagnose the P0564 code on a 2018 GMC Sierra?

Diagnosis involves scanning for codes, inspecting the cruise control switch, checking the wiring and connectors for damage, and testing the circuit with a multimeter.

6. How do I fix the P0564 code on a 2018 GMC Sierra?

Repairs may include replacing the cruise control switch, repairing damaged wiring or connectors, or replacing the clock spring if it is faulty.

7. What tools are needed to troubleshoot the P0564 code on a 2018 GMC Sierra?

Youâ€™ll need an OBDII scanner, a multimeter, and basic hand tools to inspect and repair the cruise control circuit components.

8. How much does it cost to fix the P0564 code on a 2018 GMC Sierra?

Repair costs vary, but replacing a cruise control switch can range from $150 to $300, while wiring repairs may be less expensive if minor.

9. Can a blown fuse cause the P0564 code on a 2018 GMC Sierra?

While unlikely, a blown fuse associated with the cruise control system could cause circuit issues. Itâ€™s worth checking during diagnosis.

10. Is the P0564 code related to other systems in the 2018 GMC Sierra?

Yes, the P0564 code can be linked to other systems, such as the steering wheel controls or clock spring assembly, as they share components with the cruise control circuit.