← View Generic B0842 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0842: B0842: Door Locks Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
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 B0842 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0842 code indicates a malfunction in the door lock system, which may cause the doors to lock or unlock unexpectedly, or not function at all.
⚠️

Symptoms

  • • Doors lock or unlock unexpectedly
  • • doors won't lock or unlock
  • • door lock warning light on dashboard
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Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • faulty door lock module
  • • faulty body control module
🛠️

How to Fix B0842 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the system. 2. Check and repair any damaged wiring. 3. Replace the faulty door lock actuator or module. 4. Update the body control module software if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door lock actuator Shop ↗ Door lock module Shop ↗ Wiring harness Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0842

B0840 Sequential Code

B0840: Airbag System Circuit Malfunction

High
B0841 Sequential Code

B0841: Climate Control Blower Motor Fault

Medium
B0843 Sequential Code

B0843: Power Window Circuit Malfunction

Medium
B0844 Sequential Code

B0844: 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