← View Generic B0485 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0485: B0485: Exterior Lighting 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 B0485 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0485 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
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Symptoms

  • • Dim or inoperative exterior lights
  • • warning lights on the dashboard
  • • or intermittent lighting issues.
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Common Causes

  • • Faulty headlight or taillight bulbs
  • • wiring issues
  • • or a malfunctioning lighting control module.
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How to Fix B0485 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace any faulty bulbs. 2. Inspect and repair any damaged wiring. 3. Update the lighting control module if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Exterior lighting bulb Shop ↗ Wiring harness Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with B0485

B0483 Sequential Code

B0483: Power Window Circuit Malfunction

Medium
B0484 Sequential Code

B0484: Seat Switch Malfunction

Medium
B0486 Sequential Code

B0486: Immobilizer System Malfunction

Medium
B0487 Sequential Code

B0487: 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