← View Generic B0688 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0688: B0688: Airbag System Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $800
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 B0688 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The airbag system has detected a fault, which may be caused by a malfunctioning sensor, wiring issue, or faulty airbag module.
⚠️

Symptoms

  • • Airbag warning light on dashboard
  • • airbag may not deploy in a crash
  • • or airbag may deploy unexpectedly.
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Common Causes

  • • Faulty airbag sensor
  • • wiring issue
  • • faulty airbag module
  • • or a problem with the airbag control module.
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How to Fix B0688 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the airbag sensor and wiring for damage or corrosion. Replace if necessary. 2. Check the airbag module and control module for faults. Replace if necessary. 3. Check the airbag system for any signs of physical damage. Repair or replace as necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Airbag sensor Shop ↗ Airbag wiring harness Shop ↗ Airbag module Shop ↗ Airbag control module Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0688

B0686 Sequential Code

B0686: Body System Code - Security System Malfunction

Medium
B0687 Sequential Code

B0687: Audio System Malfunction

Medium
B0689 Sequential Code

B0689: Climate Control Fan Motor Fault

Medium
B0690 Sequential Code

B0690: Door Locks 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