AutoCodes – GMC – C0750 2018 GMC Sierra

C0750 2018 GMC Sierra 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 2018 GMC Sierra 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 194

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 2018 GMC Sierra 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 2018 GMC Sierra - Left Front Low Tire Pressure Sensor - AutoCodes.com — C0750 2018 GMC Sierra Code - Left Front Low Tire Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC C0750 2018 GMC Sierra?

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 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 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 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.

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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 C0750 2018 GMC Sierra Code

1. What does the OBDII code C0750 for a 2018 GMC Sierra indicate?

The code C0750 specifically refers to an issue with the left front low tire pressure sensor on a 2018 GMC Sierra.

2. What are the common symptoms of a left front low tire pressure sensor problem in a GMC Sierra?

Common symptoms include the tire pressure warning light staying on, inaccurate tire pressure readings, or a message on the dashboard indicating a sensor malfunction.

3. What are the possible causes of the OBDII code C0750 in a 2018 GMC Sierra?

Possible causes include a faulty tire pressure sensor, damaged wiring or connectors, low tire pressure in the left front tire, or issues with the tire pressure monitoring system module.

4. How can I diagnose a left front low tire pressure sensor issue in my GMC Sierra?

You can diagnose the problem by using a tire pressure gauge to manually check the pressure in the left front tire, inspecting the sensor and wiring for any visible damage, or using an OBDII scanner to read the specific error code.

5. Can I drive my 2018 GMC Sierra with the C0750 code related to the left front low tire pressure sensor?

It is not recommended to drive with this issue as it can affect your vehicle's safety and tire performance. Addressing the problem promptly is advised.

6. How can I repair a left front low tire pressure sensor problem in my GMC Sierra?

Repair options may include replacing the faulty sensor, repairing or replacing damaged wiring, recalibrating the tire pressure monitoring system, or resetting the error code using an OBDII scanner.

7. Is it possible to reset the OBDII code C0750 in a 2018 GMC Sierra without fixing the issue?

While you can clear the code temporarily, it is important to address the underlying problem causing the code to prevent further issues and ensure accurate tire pressure monitoring.

8. Can extreme weather conditions affect the left front low tire pressure sensor in a 2018 GMC Sierra?

Yes, extreme temperatures can impact tire pressure readings, potentially triggering the sensor's malfunction. Regularly checking and adjusting tire pressure in different weather conditions is recommended.

9. How often should I check the tire pressure in my 2018 GMC Sierra to prevent left front low tire pressure sensor issues?

Regularly checking tire pressure, at least once a month or before long trips, can help prevent sensor malfunctions and ensure optimal tire performance and safety.

10. Are there any recalls related to the left front low tire pressure sensor in a 2018 GMC Sierra?

It is advisable to check with the manufacturer or your local dealership for any recalls related to the tire pressure monitoring system in your specific vehicle model and year.