← View Generic B0138 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0138: B0138: 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 B0138 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0138 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking the doors.
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Symptoms

  • • Doors may not lock or unlock properly
  • • or may do so intermittently
  • • and may also trigger a warning light on the dashboard.
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Common Causes

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

How to Fix B0138 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the door lock actuator for any signs of damage or wear. If damaged, replace it. 2. Inspect the wiring and connectors for any signs of damage or corrosion. Clean or replace as needed. 3. Check the door lock module for any signs of malfunction. If faulty, replace it.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Door Lock Actuator Shop ↗ Wiring Harness Shop ↗ Door Lock Module Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with B0138

B0136 Sequential Code

B0136: Airbag System Fault

Medium
B0137 Sequential Code

B0137: Climate Control System Malfunction

Medium
B0139 Sequential Code

B0139: Power Window Circuit Malfunction

Medium
B0140 Sequential Code

B0140: 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