← View Generic B2602 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2602: B2602: 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 B2602 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B2602 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors, as well as potentially preventing the vehicle from being driven.
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Symptoms

  • • Doors won't lock or unlock
  • • door locks are stuck
  • • or the vehicle won't start due to door lock issues
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Common Causes

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

How to Fix B2602 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the system. 2. Check and clean the door lock actuators. 3. Inspect and repair or replace wiring as needed. 4. Test the door lock module and replace if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

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

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Related Diagnostic Codes

Other codes that may appear with B2602

B2600 Sequential Code

B2600: Airbag System Malfunction

High
B2601 Sequential Code

B2601: Climate Control Temperature Sensor Malfunction

Medium
B2603 Sequential Code

B2603: Power Window Relay Circuit Malfunction

Medium
B2604 Sequential Code

B2604: 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