← View Generic B1642 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1642: B1642: Door Locks Actuator 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 B1642 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1642 code indicates a malfunction in the door lock actuator, which may cause the door locks to malfunction or not function at all.
⚠️

Symptoms

  • • Door locks not functioning
  • • clicking sounds when trying to lock/unlock
  • • or doors not locking/unlocking properly
🔍

Common Causes

  • • Faulty door lock actuator
  • • wiring issue
  • • or electrical problem
🛠️

How to Fix B1642 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the system. 2. Check and clean the door lock actuator and wiring. 3. Replace the door lock actuator if faulty. 4. Check and repair any wiring issues.

🔧

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 ↗ 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 B1642

B1640 Sequential Code

B1640: Airbag System Circuit Malfunction

High
B1641 Sequential Code

B1641: Climate Control System Malfunction

Medium
B1643 Sequential Code

B1643: Power Window Relay Circuit Malfunction

Medium
B1644 Sequential Code

B1644: 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