← View Generic C0121 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C0121: C0121: Left Front Suspension Strut Friction Bushing Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$150 - $300
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 C0121 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The C0121 code indicates a fault in the left front suspension strut friction bushing, which can cause uneven tire wear, vibration, and noise when driving.
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Symptoms

  • • Uneven tire wear
  • • vibration
  • • noise when driving
  • • loose or rattling suspension components
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Common Causes

  • • Worn or damaged left front suspension strut friction bushing
  • • loose or worn suspension mounts
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How to Fix C0121 on 2020 Chevrolet SILVERADO 1500 PICKUP

Replace the left front suspension strut friction bushing, inspect and replace any worn or damaged suspension mounts

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Left front suspension strut friction bushing Shop ↗ Suspension mount Shop ↗

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Related Diagnostic Codes

Other codes that may appear with C0121

C0119 Sequential Code

C0119: ABS System Malfunction

Medium
C0120 Sequential Code

C0120: Brake System Pressure Sensor Circuit Malfunction

Medium
C0122 Sequential Code

C0122: Steering Column Position Sensor Circuit Malfunction

Medium
C0123 Sequential Code

C0123: Electronic Stability Control (ESC) 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