B0959 2018 GMC Sierra Code - Parking Assist Rear Sensor Left Middle Circuit
Quick Answer
The B0959 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Parking Assist Rear Sensor Left Middle Circuit. Common causes include Faulty rear sensor in the left middle position, Wiring or connection issues in the sensor circuit, Water or debris damage to the sensor. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B0959 2018 GMC Sierra indicates Parking Assist Rear Sensor Left Middle Circuit.
- Common causes
- Common causes include Faulty rear sensor in the left middle position, Wiring or connection issues in the sensor circuit, Water or debris damage to the sensor.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code B0959 2018 GMC Sierra Description
The B0959 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Parking Assist Rear Sensor Left Middle Circuit. This code specifically points to an issue with the sensor located in the middle left section of the rear bumper that is responsible for detecting obstacles when the vehicle is in reverse. The parking assist system uses these sensors to alert the driver of any objects in the vehicle's path while parking, helping to prevent collisions and damage to the vehicle.
Common Causes of B0959 2018 GMC Sierra
- Faulty rear sensor in the left middle position
- Wiring or connection issues in the sensor circuit
- Water or debris damage to the sensor
- Electrical issues in the vehicle's system affecting the sensor
- Physical damage to the sensor from impacts or corrosion
Symptoms of B0959 2018 GMC Sierra
- Parking assist system warning light illuminated on the dashboard
- Inaccurate or inconsistent parking sensor readings
- Audible warning alerts from the parking assist system when no obstacles are present
- Complete failure of the parking assist system
How to Fix B0959 2018 GMC Sierra
- Begin by visually inspecting the rear sensor in the left middle position for any visible damage or debris.
- Check the wiring and connections leading to the sensor for any signs of wear, corrosion, or loose connections.
- Use a multimeter to test the sensor's circuit for continuity and proper voltage readings.
- If the sensor is found to be faulty, replace it with a new OEM sensor and ensure proper calibration.
- Clear the DTC from the vehicle's system using a diagnostic scanner to reset the parking assist system.
Cost to Fix B0959 2018 GMC Sierra
The cost of repairing a Parking Assist Rear Sensor Left Middle Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. Generally, the cost of a new OEM sensor can range from $100 to $200, with additional costs for labor and diagnostic time. Overall, the total repair cost for this issue could range from $200 to $500, including parts and labor. It's recommended to consult with a professional mechanic or dealership for a more accurate estimate based on your vehicle's make and model. Labor rates typically range from $80 to $150 per hour, but can vary based on location and shop rates.
Tech Notes for B0959 2018 GMC Sierra
B0959:02 Parking Assist Rear Sensor Left Middle Circuit Short to Ground
B0959:04 Parking Assist Rear Sensor Left Middle Circuit Open
B0959:06 Parking Assist Rear Sensor Left Middle Circuit Low Voltage/Open
B0959:08 Parking Assist Rear Sensor Left Middle Circuit Performance - Signal Invalid
B0959:18 Parking Assist Rear Sensor Left Middle Circuit Low Signal Amplitude
B0959:21 Parking Assist Rear Sensor Left Middle Circuit Incorrect Period
B0959:22 Parking Assist Rear Sensor Left Middle Circuit Too Short Low-Time
B0959:3A Parking Assist Rear Sensor Left Middle Circuit Incorrect Component Installed
B0959:3B Parking Assist Rear Sensor Left Middle Circuit Self-Test Malfunction
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Frequently Asked Questions about B0959 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code B0959 in a 2018 GMC Sierra related to the Parking Assist Rear Sensor Left Middle Circuit?
- The common symptoms may include issues with the parking assist system, such as malfunctioning or inaccurate readings from the rear sensor on the left side in the middle position.
2. What are the possible causes of OBDII code B0959 in a 2018 GMC Sierra?
- The code B0959 in a 2018 GMC Sierra is typically caused by a fault in the wiring, connectors, or the rear sensor itself in the left middle position of the parking assist system.
3. How can you diagnose the Parking Assist Rear Sensor Left Middle Circuit issue in a 2018 GMC Sierra?
- To diagnose the problem, you can use an OBDII scanner to retrieve the specific trouble code (B0959) and then visually inspect the wiring, connectors, and sensor in the left middle position for any visible damage.
4. What are some repair tips for addressing OBDII code B0959 in a 2018 GMC Sierra?
- Repair tips may include checking and repairing any damaged wiring or connectors associated with the rear sensor in the left middle position, and if necessary, replacing the faulty sensor itself.
5. Can I drive my 2018 GMC Sierra with OBDII code B0959 related to the Parking Assist Rear Sensor Left Middle Circuit?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the parking assist system.
6. How much does it typically cost to repair OBDII code B0959 in a 2018 GMC Sierra?
- The cost of repairing OBDII code B0959 can vary depending on the extent of the damage and whether you choose to do the repairs yourself or take the vehicle to a professional mechanic. Costs may include parts and labor.
7. Are there any recalls or technical service bulletins related to OBDII code B0959 in a 2018 GMC Sierra?
- It's recommended to check with a GMC dealership or visit the NHTSA website to see if there are any recalls or technical service bulletins related to this specific OBDII code for your vehicle.
8. Can extreme weather conditions affect the performance of the Parking Assist Rear Sensor Left Middle Circuit in a 2018 GMC Sierra?
- Extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially impact the performance of the parking assist system, including the rear sensor in the left middle position.
9. Is it possible to reset the OBDII code B0959 in a 2018 GMC Sierra without fixing the underlying issue?
- While you can clear the trouble code with an OBDII scanner, it is important to address the underlying issue causing the code (such as wiring or sensor problems) to prevent it from reoccurring.
10. How can I prevent OBDII code B0959 related to the Parking Assist Rear Sensor Left Middle Circuit from occurring in my 2018 GMC Sierra?
- Regularly inspecting and maintaining the parking assist system, including the rear sensors and wiring, can help prevent issues like code B0959 from occurring.
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