← View Generic B1453 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1453: B1453: Body Control Module (BCM) Malfunction - Exterior Lighting

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 B1453 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The Body Control Module (BCM) has detected a malfunction in the exterior lighting system, which may cause issues with turn signals, brake lights, or other exterior lights.
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Symptoms

  • • Inoperative or flickering exterior lights
  • • turn signal lights not functioning
  • • brake lights not illuminating
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Common Causes

  • • Faulty BCM
  • • wiring issues
  • • blown fuse
  • • faulty exterior light bulbs
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How to Fix B1453 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace blown fuses. 2. Inspect and repair wiring issues. 3. Replace faulty exterior light bulbs. 4. Update or replace the BCM if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

BCM Shop ↗ fuses Shop ↗ wiring harness Shop ↗ exterior light bulbs Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B1453

B1451 Sequential Code

B1451: Power Window Circuit Malfunction

Medium
B1452 Sequential Code

B1452: Seat Switch Circuit Malfunction

Medium
B1454 Sequential Code

B1454: Body Control Module (BCM) Security System Malfunction

Medium
B1455 Sequential Code

B1455: Audio System Fault

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