← View Generic B2718 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2718: B2718: 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 B2718 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code is typically set when the immobilizer system detects a problem with the key fob, ignition switch, or other related components.
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Symptoms

  • • Vehicle will not start
  • • may have intermittent starting issues
  • • or may display a warning light on the dashboard.
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Common Causes

  • • Faulty key fob
  • • worn or damaged ignition switch
  • • faulty immobilizer module
  • • or wiring issues.
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How to Fix B2718 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the key fob battery level and replace if necessary. 2. Inspect the ignition switch for signs of wear or damage and replace if necessary. 3. Check the immobilizer module for any signs of damage or corrosion and clean or replace as needed. 4. Inspect the wiring harness for any signs of damage or corrosion and repair or replace as needed.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Key fob battery Shop ↗ Ignition switch Shop ↗ Immobilizer module Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B2718

B2716 Sequential Code

B2716: Seat Position Sensor Circuit Malfunction

Medium
B2717 Sequential Code

B2717: Exterior Lighting Malfunction

Medium
B2719 Sequential Code

B2719: Audio System Malfunction

Medium
B2720 Sequential Code

B2720: 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