← View Generic B3506 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B3506: B3506: 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 B3506 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B3506 code indicates a malfunction in the door lock actuator, which prevents the doors from locking or unlocking properly.
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Symptoms

  • • Doors won't lock or unlock
  • • may be stuck in a locked or unlocked position
  • • or may not respond to the door lock/unlock switch.
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Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • or a problem with the door lock switch.
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How to Fix B3506 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the door lock actuator for any signs of damage or wear. Replace it if necessary. 2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as needed. 3. Test the door lock switch to ensure it's functioning properly. Replace it if necessary.

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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 B3506

B3504 Sequential Code

B3504: Airbag System Fault

High
B3505 Sequential Code

B3505: Climate Control Fan Motor Malfunction

Medium
B3507 Sequential Code

B3507: Power Window Relay Circuit Malfunction

Medium
B3508 Sequential Code

B3508: 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