← View Generic B2874 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2874: B2874: Door Locks Actuator Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$150 - $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 B2874 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B2874 code indicates a malfunction in the door lock actuator, which prevents the door locks from functioning properly.
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Symptoms

  • • Door locks do not function
  • • may be stuck or jammed
  • • or may not respond to key fob or door switch commands.
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Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • or electronic control module malfunction.
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How to Fix B2874 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect battery to reset system. 2. Check wiring and connectors for damage or corrosion. 3. Replace faulty door lock actuator. 4. Update electronic control module software if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door lock actuator Shop ↗ Wiring harness Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with B2874

B2872 Sequential Code

B2872: Airbag System Fault

High
B2873 Sequential Code

B2873: Climate Control Temperature Sensor Malfunction

Medium
B2875 Sequential Code

B2875: Power Window Relay Circuit Malfunction

Medium
B2876 Sequential Code

B2876: 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