AutoCodes – GMC – C0765 GMC

C0765 GMC Code - Right Rear Low Tire Pressure Sensor

Quick Answer

The Tire Pressure Monitor System (TPMS) has a Radio Frequency (RF) transmitting pressure sensor in each wheel/tire assembly. Common causes include Perform the Tire Pressure Indicator Sensor Learn, Faulty Right Rear Low Tire Pressure Sensor, Right Rear Low Tire Pressure Sensor harness is open or shorted. 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: C0765 GMC indicates Right Rear Low Tire Pressure Sensor.
Common causes: Common causes include Perform the Tire Pressure Indicator Sensor Learn, Faulty Right Rear Low Tire Pressure Sensor, Right Rear Low Tire Pressure Sensor harness is open or shorted.
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 3,877

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 Jul 17, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code C0765 GMC Description

The Tire Pressure Monitor System (TPMS) has a Radio Frequency (RF) transmitting pressure sensor in each wheel/tire assembly. As vehicle speed increases, centrifugal force puts the sensor into Drive mode. The sensors send the tire pressure data to the Remote Control Door Lock Receiver (RCDLR) which in turn translates the received sensor data into sensor presence, sensor mode, and tire pressure before passing it onto the Body Control Module (BCM). Once vehicle speed is greater than 40 km/h (25 MPH), the BCM waits for the first sensor to go into Drive mode, then checks if all sensors have gone into Drive mode. If one or more sensors do not go into these modes or do not transmit at all, the BCM will set DTC C0750, C0755, C0760, or C0765 respectively.

OBDII Code C0765 GMC - Right Rear Low Tire Pressure Sensor - AutoCodes.com — C0765 GMC Code - Right Rear Low Tire Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC C0765 GMC?

Perform the Tire Pressure Indicator Sensor Learn
Faulty Right Rear Low Tire Pressure Sensor
Right Rear Low Tire Pressure Sensor harness is open or shorted
Right Rear Low Tire Pressure Sensor circuit poor electrical connection

How to Fix the DTC C0765 GMC?

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 does this mean?

Code Tech Notes

A sensor may have been damaged due to a previous wheel/tire service or flat tire event.
Some aftermarket wheel valve stem holes are located further from the wheel rim than the original equipment wheels. When using the tire pressure monitor special tool to activate a sensor, ensure the tool is placed along the tire sidewall and no further than 15 cm (6 in) from the sensor and the antenna is aiming upward.
Occasionally sensors can become mislocated due to previous tire rotations where the sensor learn procedure was not performed. Always learn the sensors to ensure the DTC set is for that actual physical corner of the vehicle.
A sensor with low battery condition will set a sensor DTC but will not illuminate the low tire pressure indicator or display a message on the driver information center if equipped. The sensor battery condition can be verified in the scan tool BCM data list. If a sensor's low battery condition is indicated on the scan tool, the sensor will need to be replaced.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0765 GMC 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.

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Information for Specific GMC Models

C0765 2014 GMC Sierra — Right Rear Low Tire Pressure Sensor
C0765 2015 GMC Sierra — Right Rear Low Tire Pressure Sensor
C0765 2016 GMC Sierra — Right Rear Low Tire Pressure Sensor
C0765 2017 GMC Sierra — Right Rear Low Tire Pressure Sensor
C0765 2018 GMC Sierra — Right Rear Low Tire Pressure Sensor

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 C0765 GMC Code

1. What are the common symptoms of OBDII code C0765 GMC (Right Rear Low Tire Pressure Sensor)?

The common symptoms include the Tire Pressure Monitoring System (TPMS) warning light illuminating on the dashboard and a message indicating low tire pressure on the display.

2. What causes OBDII code C0765 GMC to trigger for the Right Rear Low Tire Pressure Sensor?

This code is typically triggered when the TPMS sensor in the right rear tire detects low tire pressure or malfunctions due to sensor issues, low tire pressure, or wiring problems.

3. How can I diagnose OBDII code C0765 GMC for the Right Rear Low Tire Pressure Sensor?

Diagnosing this code involves using a TPMS tool to read the sensor data, checking the tire pressure in the right rear tire, inspecting the sensor and wiring for damage, and resetting the system after any necessary repairs.

4. Can I drive my vehicle with OBDII code C0765 GMC (Right Rear Low Tire Pressure Sensor) active?

It is generally safe to drive with this code, but you should check and adjust the tire pressure in the right rear tire as soon as possible to prevent potential safety risks and further damage to the TPMS sensor.

5. How can I repair OBDII code C0765 GMC for the Right Rear Low Tire Pressure Sensor?

Repairing this code may involve inflating the right rear tire to the correct pressure, replacing a faulty TPMS sensor, repairing damaged wiring, or resetting the TPMS system after addressing the underlying issue.

6. Are there any DIY tips for troubleshooting OBDII code C0765 GMC related to the Right Rear Low Tire Pressure Sensor?

You can start by checking the tire pressure in the right rear tire, visually inspecting the sensor and wiring for any visible damage, and attempting to reset the TPMS system to see if the code clears before seeking professional help.

7. How important is it to address OBDII code C0765 GMC for the Right Rear Low Tire Pressure Sensor promptly?

It is important to address this code promptly to ensure the proper functioning of the TPMS system, maintain tire pressure for optimal performance and safety, and avoid potential issues related to incorrect tire pressure readings.

8. Can extreme weather conditions affect OBDII code C0765 GMC (Right Rear Low Tire Pressure Sensor)?

Extreme weather conditions can impact tire pressure and trigger this code, so it's important to regularly check and adjust tire pressure, especially in temperature fluctuations, to prevent false alerts and maintain accurate readings.

9. How can I prevent OBDII code C0765 GMC from recurring for the Right Rear Low Tire Pressure Sensor?

Regularly checking and maintaining proper tire pressure, inspecting the TPMS sensors for damage, and addressing any issues promptly can help prevent this code from recurring in the future.

10. Is it necessary to visit a dealership or mechanic to fix OBDII code C0765 GMC (Right Rear Low Tire Pressure Sensor)?

While you can attempt some basic troubleshooting yourself, it may be best to consult a dealership or mechanic for accurate diagnosis and professional repairs to ensure the TPMS system functions correctly and the code is resolved effectively.