← View Generic B0102 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0102: B0102: Immobilizer System 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 B0102 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has detected a malfunction, preventing the engine from starting. This code is typically caused by a faulty immobilizer sensor, wiring issue, or incorrect keyless entry system configuration.
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Symptoms

  • • Engine won't start
  • • immobilizer warning light on dashboard
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Common Causes

  • • Faulty immobilizer sensor
  • • wiring issue
  • • incorrect keyless entry system configuration
  • • faulty key fob battery
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How to Fix B0102 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check key fob battery and replace if necessary. 2. Inspect and clean immobilizer sensor and surrounding wiring. 3. Check keyless entry system configuration and reset if necessary. 4. Replace immobilizer sensor if faulty.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Immobilizer sensor Shop ↗ Key fob battery 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 B0102

B0100 Sequential Code

B0100: Seat Position Sensor Malfunction

Medium
B0101 Sequential Code

B0101: Body System Code B0101 - Lighting

Medium
B0103 Sequential Code

B0103: Audio System Malfunction

Medium
B0104 Sequential Code

B0104: Airbag System Malfunction

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