AutoCodes – Buick – P158A Buick

P158A Buick Code - Cruise Control Calibration Incorrect

Quick Answer

The type of cruise control system the vehicle has is programmed into the Body Control Module (BCM) and the Engine Control Module (ECM). Common causes include Reprogram Body Control Module (BCM), Reprogram Engine Control Module (ECM). 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: P158A Buick indicates Cruise Control Calibration Incorrect.
Common causes: Common causes include Reprogram Body Control Module (BCM), Reprogram Engine Control Module (ECM).
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 380

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 Aug 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P158A Buick Description

The type of cruise control system the vehicle has is programmed into the Body Control Module (BCM) and the Engine Control Module (ECM). If this information is not the same in both modules Diagnostic Trouble Code (DTC) P158A will be set.

OBDII Code P158A Buick - Cruise Control Calibration Incorrect - AutoCodes.com — P158A Buick Code - Cruise Control Calibration Incorrect

What does this mean?

What are the Possible Causes of the DTC P158A Buick?

Reprogram Body Control Module (BCM)
Reprogram Engine Control Module (ECM)

How to Fix the DTC P158A 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 P158A 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.

Need more information about the P158A Buick code?

Need more information on how to fix the P158A Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P158A Buick code diagnosed by a professional: Find a repair shop in your area

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 P158A Buick Code

1. What does the OBDII code P158A mean on a Buick?

P158A indicates that the cruise control system's calibration data is incorrect or invalid, often due to a mismatch in programmed settings.

2. What are the common symptoms of code P158A in a Buick?

The most common symptoms include the cruise control not working, a check engine light, or the vehicle not maintaining a set speed.

3. What causes code P158A on a Buick?

This code is typically caused by a failed calibration procedure, a software update issue, a faulty cruise control module, or incorrect programming after a repair.

4. Can I still drive my Buick with a P158A code?

Yes, the vehicle is usually drivable, but the cruise control functionality may be disabled until the issue is resolved.

5. How is code P158A diagnosed in a Buick?

A technician will use a scan tool to verify the code, check the cruise control calibration settings, inspect related wiring, and review any recent software updates or repairs.

6. What repairs can fix the P158A code on a Buick?

Repairs may include reprogramming or recalibrating the cruise control system, updating the vehicle's software, or replacing a faulty cruise control module.

7. Can a dead battery cause code P158A on a Buick?

Yes, a dead or disconnected battery can sometimes reset or corrupt calibration data, leading to this code.

8. Is code P158A specific to Buick vehicles?

While it is more commonly reported on Buick models, other vehicles with similar cruise control systems might also experience this code.

9. How much does it cost to repair a P158A code on a Buick?

The cost can vary, but typically ranges from $100 to $300, depending on whether the issue requires reprogramming, calibration, or part replacement.

10. Can I fix code P158A on my Buick myself?

If you have access to a compatible scan tool and the necessary software, you may be able to recalibrate the cruise control system yourself. However, professional assistance is often recommended.