B0958 2018 GMC Sierra Code - Parking Assist Rear Sensor Left Corner Circuit
Quick Answer
The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. Common causes include Faulty Parking Assist Rear Sensor Left Corner, Parking Assist Rear Sensor Left Corner harness is open or shorted, Parking Assist Rear Sensor Left Corner circuit poor electrical connection. 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
- B0958 2018 GMC Sierra indicates Parking Assist Rear Sensor Left Corner Circuit.
- Common causes
- Common causes include Faulty Parking Assist Rear Sensor Left Corner, Parking Assist Rear Sensor Left Corner harness is open or shorted, Parking Assist Rear Sensor Left Corner circuit poor electrical connection.
- 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.
Code B0958 2018 GMC Sierra Description
What are the Possible Causes of the DTC B0958 2018 GMC Sierra?
- Faulty Parking Assist Rear Sensor Left Corner
- Parking Assist Rear Sensor Left Corner harness is open or shorted
- Parking Assist Rear Sensor Left Corner circuit poor electrical connection
- Faulty Parking Assist Control Module
How to Fix the DTC B0958 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
B0958:02 Parking Assist Rear Sensor Left Corner Circuit Short to Ground
B0958:04 Parking Assist Rear Sensor Left Corner Circuit Open
B0958:06 Parking Assist Rear Sensor Left Corner Circuit Low Voltage/Open
B0958:08 Parking Assist Rear Sensor Left Corner Circuit Performance - Signal Invalid
B0958:18 Parking Assist Rear Sensor Left Corner Circuit Low Signal Amplitude
B0958:21 Parking Assist Rear Sensor Left Corner Circuit Incorrect Period
B0958:22 Parking Assist Rear Sensor Left Corner Circuit Too Short Low-Time
B0958:3A Parking Assist Rear Sensor Left Corner Circuit Incorrect Component Installed
B0958:3B Parking Assist Rear Sensor Left Corner Circuit Self-Test Malfunction
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0958 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 B0958 2018 GMC Sierra Code
1. What does the OBDII code B0958 mean on a 2018 GMC Sierra?
The B0958 code indicates an issue with the Parking Assist Rear Sensor Left Corner Circuit, typically involving a malfunction in the sensor or its wiring.
2. What are common symptoms of the B0958 code on a GMC Sierra?
Common symptoms include the rear parking assist system not working, warning messages on the dashboard, and intermittent or no sensor feedback.
3. What causes the B0958 code on a 2018 GMC Sierra?
The code can be caused by a faulty left corner parking assist sensor, damaged wiring, corroded connections, or a failure in the parking assist control module.
4. How do I diagnose the B0958 code on my GMC Sierra?
Start by visually inspecting the left corner parking sensor and its wiring for damage or corrosion. Use a scan tool to confirm the code and check for related codes or data.
5. Can I drive my 2018 GMC Sierra with the B0958 code active?
Yes, you can drive the truck, but the rear parking assist system may not function properly, increasing the risk of reverse collisions.
6. How do I fix the B0958 code on a GMC Sierra?
Repairs may involve replacing the faulty left corner sensor, repairing damaged wiring, cleaning corroded connectors, or reprogramming the parking assist module.
7. How much does it cost to repair the B0958 code on a GMC Sierra?
Repair costs vary but typically range from $50 to $250, depending on whether the sensor, wiring, or module needs to be repaired or replaced.
8. How can I prevent the B0958 code from recurring?
Regularly clean the parking sensors to prevent dirt buildup, inspect the wiring for wear, and address any moisture-related issues around the connectors.
9. Do I need special tools to fix the B0958 code?
A basic multimeter and an OBDII scan tool are helpful for diagnosis, while some repairs may require specialized tools to replace the sensor.
10. Can a faulty parking assist control module cause the B0958 code?
Yes, though less common, a malfunctioning parking assist control module can cause the code if it fails to communicate with the left corner sensor properly.
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