← View Generic B2109 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2109: B2109: Turn Signal/Hazard Light Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
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 B2109 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B2109 code indicates a problem with the turn signal or hazard light system, which may cause the lights to malfunction or not function at all.
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Symptoms

  • • Turn signals not working
  • • hazard lights not functioning
  • • or a combination of both
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Common Causes

  • • Faulty turn signal switch
  • • blown fuse
  • • wiring issue
  • • or a problem with the turn signal module
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How to Fix B2109 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the turn signal switch for any signs of wear or damage. Replace if necessary. 2. Check the fuses and replace any blown ones. 3. Inspect the wiring for any signs of damage or corrosion. Repair or replace as needed. 4. Check the turn signal module for any signs of malfunction. Replace if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Turn signal switch Shop ↗ Fuses Shop ↗ Wiring harness Shop ↗ Turn signal module Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B2109

B2107 Sequential Code

B2107: Power Window Circuit Malfunction

Medium
B2108 Sequential Code

B2108: Seat Switch Circuit Malfunction

Medium
B2110 Sequential Code

B2110: Body Control Module (BCM) Security Malfunction

Medium
B2111 Sequential Code

B2111: Audio 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