← View Generic B1042 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1042: B1042: Door Locks Actuator Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
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 B1042 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1042 code indicates a malfunction in the door lock actuator, which is responsible for locking and unlocking the doors. This can cause the doors to malfunction, preventing them from locking or unlocking properly.
⚠️

Symptoms

  • • Doors won't lock or unlock
  • • clicking sound when trying to lock or unlock
  • • door lock light on the dashboard is illuminated
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Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • faulty door lock module
  • • worn-out door lock mechanism
🛠️

How to Fix B1042 on 2020 Chevrolet SILVERADO 1500 PICKUP

Disconnect the battery to reset the door lock module Check and clean the door lock actuator and wiring Replace the door lock actuator if faulty Check and replace the door lock module if faulty Replace the door lock mechanism if worn out

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door lock actuator Shop ↗ Door lock module Shop ↗ Door lock mechanism Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1042

B1040 Sequential Code

B1040: Airbag System Fault

High
B1041 Sequential Code

B1041: Climate Control Temperature Sensor Malfunction

Medium
B1043 Sequential Code

B1043: Power Window Circuit Malfunction

Medium
B1044 Sequential Code

B1044: Seat Switch 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