AutoCodesGMC – C0775 2018 GMC Sierra

C0775 2018 GMC Sierra Code - Tire Pressure Monitoring System Sensors Malfunction

Quick Answer

If the Body Control Module (BCM) has been reprogrammed or replaced and the tire pressure sensor learn procedure has not been performed, the tire pressure monitor system indicator icon on the instrument cluster will flash for 1 min and then remain illuminated after the power switch is cycled ON and the instrument cluster bulb check is complete. Common causes include Relearn Low Tire Pressure System Sensors. 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
C0775 2018 GMC Sierra indicates Tire Pressure Monitoring System Sensors Malfunction.
Common causes
Common causes include Relearn Low Tire Pressure System Sensors.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 332
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 18, 2023
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Code C0775 2018 GMC Sierra Description

If the Body Control Module (BCM) has been reprogrammed or replaced and the tire pressure sensor learn procedure has not been performed, the tire pressure monitor system indicator icon on the instrument cluster will flash for 1 min and then remain illuminated after the power switch is cycled ON and the instrument cluster bulb check is complete. If equipped, the driver information center will also display a service tire monitor-type message. Under these circumstances, Diagnostic Trouble Code (DTC) C0775 will be set in the BCM and the tire pressure sensor learning procedure will need to be performed for the system to function correctly.
OBDII Code C0775 2018 GMC Sierra - Tire Pressure Monitoring System Sensors Malfunction - AutoCodes.com
C0775 2018 GMC Sierra Code - Tire Pressure Monitoring System Sensors Malfunction

What are the Possible Causes of the DTC C0775 2018 GMC Sierra?

  • Relearn Low Tire Pressure System Sensors

How to Fix the DTC C0775 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0775 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 C0775 2018 GMC Sierra code?

Need more information on how to fix the C0775 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0775 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 C0775 2018 GMC Sierra Code

1. What are the common symptoms of a Tire Pressure Monitoring System (TPMS) Sensors Malfunction with OBDII code C0775 on a 2018 GMC Sierra?

- Common symptoms include the TPMS warning light illuminating on the dashboard, inaccurate or inconsistent tire pressure readings, and loss of communication with the TPMS sensors.

2. What are the possible causes of OBDII code C0775 indicating a TPMS Sensors Malfunction in a 2018 GMC Sierra?

- Possible causes include faulty TPMS sensors, low tire pressure, damaged or corroded sensor components, wiring issues, or a malfunctioning TPMS control module.

3. How can I diagnose a TPMS Sensors Malfunction with OBDII code C0775 on my 2018 GMC Sierra?

- Diagnosis typically involves using a TPMS scan tool to retrieve the specific error code, checking each tire's pressure manually, inspecting the TPMS sensors for physical damage, and testing the sensor communication with the vehicle's system.

4. Can I still drive my 2018 GMC Sierra with the TPMS Sensors Malfunction and OBDII code C0775?

- While the vehicle may still be drivable, it is not recommended to ignore TPMS warnings as accurate tire pressure is essential for safety and optimal vehicle performance. It's advisable to address the issue promptly.

5. How can I reset the TPMS system after repairing the sensors related to OBDII code C0775 in my 2018 GMC Sierra?

- After repairing or replacing the faulty TPMS sensors, you may need to perform a TPMS relearn procedure using the vehicle's owner's manual or seek assistance from a professional mechanic to reset the system properly.

6. Are there any DIY tips for troubleshooting a TPMS Sensors Malfunction with OBDII code C0775 in a 2018 GMC Sierra?

- DIY tips include checking tire pressures regularly, inspecting sensor batteries, ensuring proper sensor installation, and keeping sensor components clean to prevent malfunctions.

7. Can weather conditions affect the accuracy of TPMS sensors and trigger OBDII code C0775 on a 2018 GMC Sierra?

- Extreme temperatures and fluctuations in weather can impact TPMS sensor performance, potentially leading to false readings or malfunctions. It's essential to monitor tire pressures regularly, especially during temperature changes.

8. How much does it typically cost to repair or replace TPMS sensors related to OBDII code C0775 on a 2018 GMC Sierra?

- The cost of repairing or replacing TPMS sensors can vary depending on the extent of the issue, the number of sensors needing attention, and whether you opt for OEM or aftermarket parts. It's recommended to obtain quotes from reputable auto shops.

9. Are there any recalls or technical service bulletins related to TPMS Sensors Malfunction and OBDII code C0775 in 2018 GMC Sierra vehicles?

- It's advisable to check with a GMC dealership or the National Highway Traffic Safety Administration (NHTSA) website for any recalls or technical service bulletins related to TPMS sensor issues in 2018 GMC Sierra models.

10. How often should TPMS sensors be replaced or serviced to prevent OBDII code C0775 from appearing on a 2018 GMC Sierra?

- TPMS sensors typically have a lifespan of 5-10 years or 100,000 miles, but it's essential to follow the manufacturer's recommendations for maintenance and replacement intervals to avoid potential malfunctions and error codes like C0775.

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