← View Generic B0786 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0786: B0786: Door Locks Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0786 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a malfunction in the door lock system, which can cause issues with door locking and unlocking functions.
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Symptoms

  • • Door locks not functioning properly
  • • doors may not lock or unlock
  • • or may lock/unlock intermittently.
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Common Causes

  • • Faulty door lock actuator
  • • wiring issues
  • • or a problem with the door lock switch.
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How to Fix B0786 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the door lock actuator for any signs of damage or wear. Replace if necessary. 2. Inspect the wiring harness for any signs of damage or corrosion. Repair or replace as needed. 3. Check the door lock switch for any signs of wear or damage. Clean or replace as needed.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door lock actuator Shop ↗ Wiring harness Shop ↗ Door lock switch Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0786

B0784 Sequential Code

B0784: Airbag System Fault

High
B0785 Sequential Code

B0785: Climate Control System Malfunction

Medium
B0787 Sequential Code

B0787: Power Window Motor Control Circuit Malfunction

Medium
B0788 Sequential Code

B0788: Seat Position Sensor Circuit Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system