← View Generic B0142 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0142: B0142: Immobilizer System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $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 B0142 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 key fob, keyless entry system, or a problem with the vehicle's computer.
⚠️

Symptoms

  • • Vehicle won't start
  • • won't run
  • • or has intermittent starting issues
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Common Causes

  • • Faulty immobilizer key fob
  • • keyless entry system
  • • faulty vehicle computer
  • • or wiring issues
🛠️

How to Fix B0142 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the key fob's battery level and replace it if necessary. 2. Check the keyless entry system for any issues. 3. Check the vehicle computer for any errors or faults. 4. Check the wiring harness for any damage or corrosion.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

immobilizer key fob Shop ↗ keyless entry system module Shop ↗ vehicle computer 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 B0142

B0140 Sequential Code

B0140: Seat Position Sensor Circuit Malfunction

Medium
B0141 Sequential Code

B0141: Low Beam Headlight Relay Circuit Malfunction

Medium
B0143 Sequential Code

B0143: Audio System Malfunction

Medium
B0144 Sequential Code

B0144: 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