← View Generic B0462 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0462: B0462: Immobilizer System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
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 B0462 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has malfunctioned, preventing the engine from starting. This code is typically set when the immobilizer system detects a security issue, such as a faulty key fob or a tampered-with ignition lock cylinder.
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Symptoms

  • • Engine will not start
  • • may display a security warning message on the dashboard
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Common Causes

  • • Faulty key fob
  • • immobilizer system module failure
  • • tampered-with ignition lock cylinder
  • • faulty wiring or connectors
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How to Fix B0462 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the key fob battery level and replace if necessary. 2. Check the immobilizer system module for any signs of physical damage or corrosion. 3. Check the ignition lock cylinder for any signs of tampering. 4. Use a scan tool to clear the code and test the immobilizer system.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

immobilizer system module Shop ↗ key fob battery Shop ↗ ignition lock cylinder Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

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🔗

Related Diagnostic Codes

Other codes that may appear with B0462

B0460 Sequential Code

B0460: Seat Switch Circuit Malfunction

Medium
B0461 Sequential Code

B0461: Low Beam Headlight Malfunction

Medium
B0463 Sequential Code

B0463: Audio System Fault

Medium
B0464 Sequential Code

B0464: Airbag System Fault

High

💡 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