← View Generic B3379 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B3379: B3379: Power Window Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
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 B3379 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B3379 code indicates a problem with the power window circuit, which may cause windows to malfunction or not function at all.
⚠️

Symptoms

  • • Windows won't roll up or down
  • • intermittent window operation
  • • or unusual noises when operating windows
🔍

Common Causes

  • • Faulty window regulator
  • • damaged window switch
  • • corroded or loose electrical connections
  • • blown fuse
🛠️

How to Fix B3379 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clean electrical connections; 2. Replace faulty window regulator or switch; 3. Check and replace blown fuse; 4. Inspect and repair or replace corroded or damaged wiring

🔧

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

window regulator Shop ↗ window switch Shop ↗ electrical connectors Shop ↗ fuses 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 B3379

B3377 Sequential Code

B3377: Climate Control Fan Motor Malfunction

Medium
B3378 Sequential Code

B3378: Door Locks Actuator Circuit Malfunction

Medium
B3380 Sequential Code

B3380: Seat Position Sensor Circuit Malfunction

Medium
B3381 Sequential Code

B3381: Body System Code - Lighting 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