← View Generic B1029 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1029: B1029: Body System Code - Malfunctioning 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 B1029 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal. The code may also be triggered by a faulty wiring harness or a malfunctioning body control module.
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Symptoms

  • • Dim or non-functioning exterior lights
  • • faulty turn signals
  • • or flickering lights
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Common Causes

  • • Faulty headlight or taillight bulb
  • • wiring harness damage
  • • body control module malfunction
  • • or faulty exterior lighting switch
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How to Fix B1029 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace faulty bulbs, 2. Inspect and repair damaged wiring harness, 3. Update body control module software, 4. Replace faulty exterior lighting switch

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Exterior lighting bulb Shop ↗ Wiring harness Shop ↗ Body control module Shop ↗ Exterior lighting switch Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1029

B1027 Sequential Code

B1027: Power Window Circuit Malfunction

Medium
B1028 Sequential Code

B1028: Seat Switch Circuit Malfunction

Medium
B1030 Sequential Code

B1030: Immobilizer System Malfunction

Medium
B1031 Sequential Code

B1031: 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