← View Generic B1074 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1074: B1074: Door Locks 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 B1074 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a problem with the door lock system, possibly due to a faulty lock actuator, wiring issue, or a problem with the door lock module.
⚠️

Symptoms

  • • Door locks not functioning
  • • may be stuck or not responding
  • • or may be locking/unlocking randomly
🔍

Common Causes

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

How to Fix B1074 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check door lock switch for proper operation. 2. Inspect wiring and connectors for damage or corrosion. 3. Test door lock actuator for proper function. 4. Replace faulty door lock module or actuator.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

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

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

Shop Scanners ↗
🔗

Related Diagnostic Codes

Other codes that may appear with B1074

B1072 Sequential Code

B1072: Airbag System Fault

Medium
B1073 Sequential Code

B1073: Climate Control Malfunction

Medium
B1075 Sequential Code

B1075: Power Window Relay Circuit Malfunction

Medium
B1076 Sequential Code

B1076: 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