C0755 2018 GMC Sierra Code - Right 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 Right Front Low Tire Pressure Sensor, Right 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
- C0755 2018 GMC Sierra indicates Right Front Low Tire Pressure Sensor.
- Common causes
- Common causes include Perform the Tire Pressure Indicator Sensor Learn, Faulty Right Front Low Tire Pressure Sensor, Right 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.
Code C0755 2018 GMC Sierra Description
What are the Possible Causes of the DTC C0755 2018 GMC Sierra?
- Perform the Tire Pressure Indicator Sensor Learn
- Faulty Right Front Low Tire Pressure Sensor
- Right Front Low Tire Pressure Sensor harness is open or shorted
- Right Front Low Tire Pressure Sensor circuit poor electrical connection
How to Fix the DTC C0755 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
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 C0755 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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Frequently Asked Questions about C0755 2018 GMC Sierra Code
1. What does the OBDII code C0755 mean on a 2018 GMC Sierra?
The code C0755 indicates an issue with the right front tire pressure sensor, often related to low tire pressure, sensor malfunction, or communication problems.
2. What are the common symptoms of code C0755 on a 2018 GMC Sierra?
Symptoms may include the tire pressure warning light on the dashboard, inaccurate tire pressure readings, or no reading from the right front tire sensor.
3. What causes the C0755 code on a 2018 GMC Sierra?
Common causes include a faulty right front tire pressure sensor, low battery in the sensor, damaged wiring, or interference with the sensor's signal.
4. Can low tire pressure trigger the C0755 code on a 2018 GMC Sierra?
Yes, if the right front tire is underinflated, the system may trigger the code to indicate low pressure or a sensor issue.
5. How do I fix the C0755 code on a 2018 GMC Sierra?
Start by checking and inflating the right front tire to the recommended pressure. If the issue persists, inspect the sensor and wiring, or replace the sensor if it's faulty.
6. How do I reset the tire pressure monitoring system (TPMS) on a 2018 GMC Sierra?
After adjusting tire pressure, use the vehicle's TPMS reset procedure in the owner's manual, which typically involves using the TPMS relearn tool or following an ignition sequence.
7. How much does it cost to replace a tire pressure sensor on a 2018 GMC Sierra?
A replacement tire pressure sensor typically costs $50–$100 for the part, with additional labor costs if done by a professional.
8. Can I drive my 2018 GMC Sierra with the C0755 code?
You can drive, but it’s not recommended for long periods, as the TPMS warning indicates a possible safety risk like underinflated tires.
9. How long do tire pressure sensors last on a 2018 GMC Sierra?
Tire pressure sensors generally last 5–10 years, depending on usage and environmental factors.
10. Will clearing the C0755 code fix the problem?
Clearing the code may temporarily remove the warning, but the underlying issue must be resolved to prevent the code from returning.
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