AutoCodes – Buick – U0158 Buick

U0158 Buick Code - Lost Communication With Head Up Display Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Head-Up Display Module, Head-Up Display Module harness is open or shorted, Head-Up Display Module circuit poor electrical connection. 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: U0158 Buick indicates Lost Communication With Head Up Display Module.
Common causes: Common causes include Faulty Head-Up Display Module, Head-Up Display Module harness is open or shorted, Head-Up Display Module circuit poor electrical connection.
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 649

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 Apr 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0158 Buick Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Head-Up Display Module has not been received.

OBDII Code U0158 Buick - Lost Communication With Head Up Display Module - AutoCodes.com — U0158 Buick Code - Lost Communication With Head Up Display Module

What does this mean?

What are the Possible Causes of the DTC U0158 Buick?

Faulty Head-Up Display Module
Head-Up Display Module harness is open or shorted
Head-Up Display Module circuit poor electrical connection

How to Fix the DTC U0158 Buick?

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 U0158 Buick 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 U0158 Buick Code

1. What are the common symptoms of OBDII code U0158 in a Buick related to the Head Up Display Module?

- Common symptoms include loss of communication with the head-up display, malfunctioning display features, and potential dashboard warning lights.

2. What are the possible causes of the U0158 trouble code in a Buick?

- The U0158 code can be triggered by issues such as damaged wiring, loose connections, a faulty head-up display module, or a malfunction in the vehicle's communication network.

3. How can I diagnose the U0158 code related to the head-up display module in my Buick?

- It is recommended to perform a thorough inspection of the wiring connections, check for any visible damage, and use a diagnostic tool to scan for specific communication errors in the system.

4. Can I repair the U0158 code issue in my Buick on my own?

- Depending on the cause, you may be able to resolve the issue by checking and repairing any damaged wiring or loose connections. However, more complex issues may require professional diagnosis and repair.

5. Is it safe to continue driving with the U0158 code present in my Buick?

- It is generally not recommended to drive with unresolved OBDII trouble codes, as they can indicate underlying issues that may affect the vehicle's performance or safety.

6. How much does it typically cost to repair the U0158 code in a Buick related to the head-up display module?

- The cost of repair can vary depending on the specific cause of the issue. Simple fixes like repairing wiring may be relatively inexpensive, while replacing a faulty module could be more costly.

7. Can resetting the trouble codes clear the U0158 code from my Buick's system?

- Resetting the trouble codes may temporarily clear the U0158 code, but if the underlying issue is not repaired, the code is likely to reappear after driving the vehicle.

8. Are there any preventive measures to avoid encountering the U0158 trouble code in my Buick?

- Regularly checking and maintaining the vehicle's electrical components, including the head-up display system, can help prevent issues that may trigger the U0158 trouble code.

9. Will the U0158 code affect the overall performance of my Buick?

- While the U0158 code specifically relates to the head-up display module, unresolved communication issues in the vehicle's network can potentially impact other systems and overall performance.

10. How long does it typically take to diagnose and repair the U0158 code in a Buick?

- The time needed for diagnosis and repair can vary depending on the complexity of the issue. Simple fixes may take a short time, while more involved repairs could require additional diagnostics and labor.