← View Generic B0942 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0942: B0942: Immobilizer System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
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 B0942 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code is often caused by a faulty immobilizer module, key fob, or wiring issue.
⚠️

Symptoms

  • • Vehicle will not start
  • • may show a 'security system malfunction' message on the dashboard
  • • or may have a flashing immobilizer light.
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Common Causes

  • • Faulty immobilizer module
  • • key fob
  • • wiring issue
  • • low battery voltage
  • • or incorrect key fob programming.
🛠️

How to Fix B0942 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the key fob battery level and replace if necessary. 2. Check the wiring harness for damage or corrosion and repair if necessary. 3. Replace the immobilizer module if faulty. 4. Re-program the key fob if necessary.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

immobilizer module Shop ↗ key fob Shop ↗ wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0942

B0940 Sequential Code

B0940: Seat Position Sensor Malfunction

Medium
B0941 Sequential Code

B0941: Body System Malfunction - Lighting

Medium
B0943 Sequential Code

B0943: Audio System Malfunction

Medium
B0944 Sequential Code

B0944: Airbag System 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