← View Generic B3189 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B3189: B3189: Turn Signal Lamp 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 B3189 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B3189 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
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Symptoms

  • • Turn signals not working
  • • flashing
  • • or staying on continuously
  • • warning lights on dashboard
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Common Causes

  • • Faulty turn signal switch
  • • corroded or damaged wiring
  • • blown fuse
  • • faulty turn signal lamp
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How to Fix B3189 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace the turn signal switch if faulty. 2. Inspect and clean or replace corroded wiring. 3. Check and replace the blown fuse. 4. Replace the turn signal lamp if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Turn signal switch Shop ↗ Wiring harness Shop ↗ Fuse Shop ↗ Turn signal lamp Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B3189

B3187 Sequential Code

B3187: Power Window Relay Circuit Malfunction

Medium
B3188 Sequential Code

B3188: Seat Position Sensor Circuit Malfunction

Medium
B3190 Sequential Code

B3190: Immobilizer System Malfunction

High
B3191 Sequential Code

B3191: 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