AutoCodes – GMC – B0550 2018 GMC Sierra

B0550 2018 GMC Sierra Code - Odometer Circuit General Memory Malfunction

Quick Answer

The instrument cluster is equipped with odometers that indicate the distance traveled by the vehicle. Common causes include Reprogram Body Control Module (BCM), Faulty Body Control Module, Body Control Module 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: B0550 2018 GMC Sierra indicates Odometer Circuit General Memory Malfunction.
Common causes: Common causes include Reprogram Body Control Module (BCM), Faulty Body Control Module, Body Control Module 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 229

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 Nov 14, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0550 2018 GMC Sierra Description

The instrument cluster is equipped with odometers that indicate the distance traveled by the vehicle. One type of odometer is the season odometer where the travelled distance can not be reset by the driver. This information is also stored in the Body Control Module (BCM). In addition to storing the season odometer value for the vehicle, the instrument cluster and the BCM store the VIN. Software checks are performed to ensure these modules, and their stored season odometer information, can not be moved or transferred between different vehicles.

OBDII Code B0550 2018 GMC Sierra - Odometer Circuit General Memory Malfunction - AutoCodes.com — B0550 2018 GMC Sierra Code - Odometer Circuit General Memory Malfunction

What does this mean?

What are the Possible Causes of the DTC B0550 2018 GMC Sierra?

Reprogram Body Control Module (BCM)
Faulty Body Control Module
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC B0550 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0550 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.

Need more information about the B0550 2018 GMC Sierra code?

Need more information on how to fix the B0550 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B0550 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code B0550 in a 2018 GMC Sierra?

- The common symptoms include inaccurate odometer readings, speedometer issues, and potential illumination of the check engine light.

2. What causes the Odometer Circuit General Memory Malfunction (B0550) code in a 2018 GMC Sierra?

- The code B0550 is typically caused by a malfunction in the vehicle's odometer circuit or a problem with the general memory system.

3. How serious is the OBDII code B0550 in a 2018 GMC Sierra?

- While the code may not affect the drivability of the vehicle, it can lead to inaccurate mileage readings and potential issues with other vehicle systems.

4. Can I still drive my 2018 GMC Sierra with the B0550 code?

- It is generally safe to drive the vehicle with the B0550 code, but it is recommended to address the issue promptly to prevent any further complications.

5. How can I diagnose the Odometer Circuit General Memory Malfunction code in my 2018 GMC Sierra?

- Diagnosing the B0550 code typically involves using an OBDII scanner to retrieve the specific fault code and then inspecting the odometer circuit and general memory system for any faults.

6. What are some repair tips for fixing the B0550 code in a 2018 GMC Sierra?

- Repair tips may include checking for loose connections, damaged wiring, or faulty components in the odometer circuit and general memory system, and repairing or replacing them as necessary.

7. Can resetting the OBDII code B0550 in my 2018 GMC Sierra fix the issue?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the B0550 code is not addressed, the problem is likely to reoccur.

8. Is it possible to repair the Odometer Circuit General Memory Malfunction code in a 2018 GMC Sierra without professional help?

- While some basic troubleshooting steps can be taken by DIY enthusiasts, diagnosing and repairing the B0550 code may require specialized tools and expertise, so professional help is recommended.

9. Are there any recalls or technical service bulletins related to the B0550 code in a 2018 GMC Sierra?

- It's advisable to check with a GMC dealership or online resources for any related recalls or technical service bulletins that may address the Odometer Circuit General Memory Malfunction code in the 2018 Sierra.

10. How much does it cost to repair the OBDII code B0550 in a 2018 GMC Sierra?

- The cost of repairing the B0550 code can vary depending on the underlying issue, parts needed for replacement, and labor charges. It's recommended to obtain quotes from local mechanics or dealerships for an accurate estimate.