← View Generic C0777 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C0777: C0777: ABS System 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 C0777 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The ABS system has malfunctioned, preventing the vehicle from functioning properly. This code indicates a problem with the ABS sensor or wiring.
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Symptoms

  • • ABS light on dashboard
  • • vehicle may vibrate or pulsate during braking
  • • reduced braking performance
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Common Causes

  • • Faulty ABS sensor
  • • wiring damage
  • • faulty ABS module
  • • low brake fluid level
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How to Fix C0777 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check brake fluid level and top off if necessary. 2. Inspect ABS sensor and wiring for damage. 3. Replace faulty ABS sensor or wiring. 4. Update ABS module software if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

ABS sensor Shop ↗ wiring harness Shop ↗ ABS module Shop ↗

Essential Tool

Must Have

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Related Diagnostic Codes

Other codes that may appear with C0777

C0775 Sequential Code

C0775: Traction Control System Malfunction

Medium
C0776 Sequential Code

C0776: Wheel Speed Sensor Malfunction

Medium
C0778 Sequential Code

C0778: Brake System Pressure Sensor Circuit Malfunction

Medium
C0779 Sequential Code

C0779: Rear Suspension Control Module (RSCM) 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