← View Generic B1045 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1045: B1045: Turn Signal or 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 B1045 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a problem with the turn signal or hazard light system, which may be due to a faulty switch, bulb, or wiring issue.
⚠️

Symptoms

  • • Inoperative turn signals
  • • hazard lights
  • • or both; sometimes accompanied by a dashboard warning light.
🔍

Common Causes

  • • Faulty turn signal switch
  • • burned-out bulbs
  • • wiring damage
  • • or a malfunctioning turn signal module.
🛠️

How to Fix B1045 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the turn signal switch for damage or corrosion and replace if necessary. 2. Inspect and replace any burned-out bulbs. 3. Check the wiring for damage and repair or replace as needed. 4. If the issue persists, replace the turn signal module.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Turn signal switch Shop ↗ Bulbs Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

Shop Scanners ↗
🔗

Related Diagnostic Codes

Other codes that may appear with B1045

B1043 Sequential Code

B1043: Power Window Circuit Malfunction

Medium
B1044 Sequential Code

B1044: Seat Switch Circuit Malfunction

Medium
B1046 Sequential Code

B1046: Immobilizer System Malfunction

Medium
B1047 Sequential Code

B1047: 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