AutoCodes – GMC – C0750 GMC

C0750 GMC Code - Left Front 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 Left Front Low Tire Pressure Sensor, Left Front 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: C0750 GMC indicates Left Front Low Tire Pressure Sensor.
Common causes: Common causes include Perform the Tire Pressure Indicator Sensor Learn, Faulty Left Front Low Tire Pressure Sensor, Left Front 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 2,727

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 C0750 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 C0750 GMC - Left Front Low Tire Pressure Sensor - AutoCodes.com — C0750 GMC Code - Left Front Low Tire Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC C0750 GMC?

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

How to Fix the DTC C0750 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 C0750 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

C0750 2014 GMC Sierra — Left Front Low Tire Pressure Sensor
C0750 2015 GMC Sierra — Left Front Low Tire Pressure Sensor
C0750 2016 GMC Sierra — Left Front Low Tire Pressure Sensor
C0750 2017 GMC Sierra — Left Front Low Tire Pressure Sensor
C0750 2018 GMC Sierra — Left Front 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 C0750 GMC Code

1. What are the common symptoms of OBDII code C0750 in a GMC related to the Left Front Low Tire Pressure Sensor?

The common symptoms include a warning light on the dashboard indicating low tire pressure in the front left tire, incorrect tire pressure readings on the display, and potential issues with the Tire Pressure Monitoring System (TPMS).

2. What are the possible causes of OBDII code C0750 in a GMC for the Left Front Low Tire Pressure Sensor?

Possible causes include a malfunctioning tire pressure sensor in the front left tire, wiring issues such as a short or open circuit, or problems with the TPMS control module.

3. How can I diagnose the OBDII code C0750 related to the Left Front Low Tire Pressure Sensor in my GMC?

Diagnosis involves using a compatible OBDII scanner to retrieve the specific trouble code, checking the tire pressure sensor in the front left tire for proper functioning, inspecting the wiring for any damage, and testing the TPMS control module.

4. Can I still drive my GMC with OBDII code C0750 indicating an issue with the Left Front Low Tire Pressure Sensor?

It is generally safe to drive the vehicle with this code, but it is important to manually check the tire pressure in the front left tire regularly to ensure it is at the correct level for safe driving.

5. What are some repair tips for fixing OBDII code C0750 in a GMC associated with the Left Front Low Tire Pressure Sensor?

Repair tips include replacing the faulty tire pressure sensor in the front left tire, repairing any damaged wiring, resetting the TPMS system, and clearing the trouble code with an OBDII scanner after the repair.

6. Is it necessary to visit a mechanic to fix OBDII code C0750 for the Left Front Low Tire Pressure Sensor in my GMC?

While some DIY enthusiasts may attempt the repair themselves, it is recommended to visit a qualified mechanic or dealership with experience in TPMS systems to accurately diagnose and fix the issue.

7. How much does it typically cost to repair OBDII code C0750 related to the Left Front Low Tire Pressure Sensor in a GMC?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor, including the replacement of the tire pressure sensor or repair of wiring.

8. Can extreme weather conditions affect the triggering of OBDII code C0750 for the Left Front Low Tire Pressure Sensor in a GMC?

Yes, extreme temperatures or fluctuations in weather can impact tire pressure readings and trigger the TPMS warning, leading to the activation of the trouble code C0750. It is important to regularly check tire pressure in such conditions.

9. Will fixing OBDII code C0750 in a GMC related to the Left Front Low Tire Pressure Sensor improve fuel efficiency?

Properly maintaining tire pressure, including addressing issues indicated by code C0750, can help improve fuel efficiency by ensuring the tires are properly inflated, reducing rolling resistance and optimizing performance.

10. How can I prevent OBDII code C0750 from recurring in my GMC for the Left Front Low Tire Pressure Sensor after repair?

To prevent code C0750 from recurring, regularly check and maintain proper tire pressure in all tires, ensure the TPMS system is functioning correctly, and address any issues promptly to avoid further trouble codes.