← View Generic B1906 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1906: B1906: Door Locks Actuator Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
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 B1906 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1906 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
⚠️

Symptoms

  • • Door locks won't engage or disengage
  • • door locks may be stuck
  • • or door locks may not respond to the key fob or door switch.
🔍

Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • or a problem with the door lock module.
🛠️

How to Fix B1906 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the system. 2. Check and clean the door lock actuator and wiring. 3. Replace the door lock actuator if faulty. 4. Check and update the door lock module software if necessary.

🔧

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door lock actuator Shop ↗ Wiring harness Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1906

B1904 Sequential Code

B1904: Airbag System Fault

High
B1905 Sequential Code

B1905: Climate Control Fan Motor Malfunction

Medium
B1907 Sequential Code

B1907: Power Window Regulator Circuit Malfunction

Medium
B1908 Sequential Code

B1908: Seat Position Sensor 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