← View Generic B1579 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1579: B1579: Power Window Relay Circuit 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 B1579 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The power window relay circuit has malfunctioned, preventing the windows from functioning properly.

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Symptoms

• Windows do not move
• or move intermittently
• when switch is activated.

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Common Causes

• Faulty power window relay
• wiring issue
• or faulty window switch.

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How to Fix B1579 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect battery to reset system. 2. Check and clean wiring connections. 3. Replace faulty power window relay or window switch.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Power window relay Shop ↗ Window switch Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B1579

B1577 Sequential Code

💡 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