Engine-CodesGMC – P0815 2016 GMC Sierra

P0815 2016 GMC Sierra Code - Upshift Switch Circuit

Quick Answer

The P0815 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Upshift Switch Circuit. Common causes include Faulty upshift switch, Damaged wiring or connectors in the circuit, Issues with the transmission control module. 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
P0815 2016 GMC Sierra indicates Upshift Switch Circuit.
Common causes
Common causes include Faulty upshift switch, Damaged wiring or connectors in the circuit, Issues with the transmission control module.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0815 2016 GMC Sierra Description

The P0815 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Upshift Switch Circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the upshift switch, which is a component used in the transmission system to facilitate gear changes. The upshift switch is crucial for ensuring smooth and timely gear shifts, which are essential for optimal vehicle performance and fuel efficiency.

OBDII Code P0815 2016 GMC Sierra - Upshift Switch Circuit
P0815 2016 GMC Sierra Code - Upshift Switch Circuit

Common Causes of P0815 2016 GMC Sierra

  1. Faulty upshift switch
  2. Damaged wiring or connectors in the circuit
  3. Issues with the transmission control module
  4. Corrosion or moisture in the circuit
  5. Electrical system malfunctions

Symptoms of P0815 2016 GMC Sierra

  1. Delayed or harsh shifting
  2. Erratic gear changes
  3. Transmission getting stuck in a specific gear
  4. Reduced acceleration
  5. Poor fuel economy

How to Fix P0815 2016 GMC Sierra

  1. Begin by conducting a thorough diagnostic scan to retrieve the specific trouble code and identify the root cause of the issue.
  2. Inspect the upshift switch, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components as needed.
  3. Test the transmission control module to ensure it is functioning correctly and reprogram it if necessary.
  4. Clear the DTC from the vehicle's computer system and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, consider seeking assistance from a professional mechanic or dealership with specialized equipment and expertise in transmission repairs.

Cost to Fix P0815 2016 GMC Sierra

The typical repair costs for addressing a P0815 code in a 2016 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts and labor for this repair could range from $200 to $500. However, it's essential to note that diagnosis time and labor rates at auto repair shops can fluctuate based on factors such as location, vehicle make and model, and engine type. It's advisable to inquire about local rates to obtain a more accurate estimate for this repair.

Need more information about the P0815 2016 GMC Sierra code?

Need more information on how to fix the P0815 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0815 2016 GMC Sierra 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 P0815 2016 GMC Sierra Code

No Frequently Asked Questions about P0815 2016 GMC Sierra Code found.

Discuss the causes and fixes for P0815 2016 GMC Sierra OBDII Code

Code P0815 2016 GMC Sierra comments

No comments found for this page.