← View Generic P0979 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0979: P0979: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $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 P0979 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The transmission advanced system has detected a malfunction in the torque converter clutch solenoid circuit, which may cause issues with transmission shifting and performance.
⚠️

Symptoms

  • • Transmission slips
  • • hesitation
  • • or hesitation during acceleration
  • • unusual noises
  • • or difficulty shifting gears.
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Common Causes

  • • Faulty torque converter clutch solenoid
  • • wiring issues
  • • or electrical problems.
🛠️

How to Fix P0979 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the torque converter clutch solenoid for signs of wear or damage. Replace if necessary. 2. Inspect the wiring and electrical connections for damage or corrosion. Repair or replace as needed. 3. Clear any trouble codes and perform a scan test to ensure the issue is resolved.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Torque converter clutch solenoid Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P0979

P0977 Sequential Code

P0977: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction

Medium
P0978 Sequential Code

P0978: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction

Medium
P0980 Sequential Code

P0980: Transmission Advanced System - Transmission Control Module (TCM) Malfunction

Medium
P0981 Sequential Code

P0981: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit 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