AutoCodes – GMC – P158A 2018 GMC Sierra

P158A 2018 GMC Sierra 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 2018 GMC Sierra 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.

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Code Popularity 150

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
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Code P158A 2018 GMC Sierra 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 2018 GMC Sierra - Cruise Control Calibration Incorrect - AutoCodes.com — P158A 2018 GMC Sierra Code - Cruise Control Calibration Incorrect

What does this mean?

What are the Possible Causes of the DTC P158A 2018 GMC Sierra?

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

How to Fix the DTC P158A 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 P158A 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 P158A 2018 GMC Sierra 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 P158A 2018 GMC Sierra Code

What are the common symptoms of OBDII code P158A in a 2018 GMC Sierra?

- The common symptoms of OBDII code P158A in a 2018 GMC Sierra include cruise control not functioning properly, the vehicle speed not matching the set speed on the cruise control, and potential illumination of the check engine light.

What are the possible causes of OBDII code P158A in a 2018 GMC Sierra?

- Possible causes of OBDII code P158A in a 2018 GMC Sierra include a faulty cruise control module, issues with the vehicle speed sensor, a malfunctioning throttle control actuator, or a problem with the cruise control switch.

How can I diagnose OBDII code P158A in a 2018 GMC Sierra?

- Diagnosing OBDII code P158A in a 2018 GMC Sierra typically involves using a vehicle scanner to retrieve the fault code, checking the cruise control system components for any visible signs of damage or wear, and conducting tests on the cruise control module and related sensors.

What are the repair options for OBDII code P158A in a 2018 GMC Sierra?

- Repair options for OBDII code P158A in a 2018 GMC Sierra may include replacing the cruise control module, repairing or replacing the vehicle speed sensor, addressing any issues with the throttle control actuator, or fixing any wiring or connection problems within the cruise control system.

Can I still drive my 2018 GMC Sierra with OBDII code P158A?

- It is generally safe to drive your 2018 GMC Sierra with OBDII code P158A, but it is recommended to address the issue promptly to prevent any potential issues with the cruise control system and ensure optimal vehicle performance.

How much does it cost to repair OBDII code P158A in a 2018 GMC Sierra?

- The cost to repair OBDII code P158A in a 2018 GMC Sierra can vary depending on the specific cause of the issue, the extent of the repairs needed, and the labor rates at the repair facility. It is advisable to obtain quotes from different mechanics or dealerships for an accurate estimate.

Is OBDII code P158A a serious issue in a 2018 GMC Sierra?

- OBDII code P158A is not typically considered a serious issue in a 2018 GMC Sierra, as it primarily relates to cruise control calibration. However, it is still important to address the problem to ensure the proper functioning of the cruise control system and to prevent any potential safety concerns while driving.

How can I prevent OBDII code P158A from appearing in my 2018 GMC Sierra?

- To prevent OBDII code P158A from appearing in your 2018 GMC Sierra, it is advisable to regularly maintain your vehicle, including checking the cruise control system components for any signs of wear or damage, ensuring proper calibration of the cruise control, and addressing any related issues promptly.