← View Generic P0742 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0742: P0742: Transmission Control System Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $1000
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 P0742 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The transmission control system is malfunctioning, causing issues with gear shifting and transmission operation.
⚠️

Symptoms

  • • Difficulty shifting gears
  • • slipping or hesitation between gears
  • • transmission warning light on
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Common Causes

  • • Faulty transmission control module
  • • faulty transmission solenoid
  • • low transmission fluid level
  • • clogged transmission filter
🛠️

How to Fix P0742 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check transmission fluid level and condition, 2. Scan for trouble codes and clear them, 3. Replace faulty transmission solenoid, 4. Replace transmission control module if necessary

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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

Transmission control module Shop ↗ Transmission solenoid Shop ↗ Transmission fluid Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

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🔗

Related Diagnostic Codes

Other codes that may appear with P0742

P0740 Sequential Code

Torque Converter Clutch Circuit Malfunction

Medium
P0741 Sequential Code

P0741: Transmission Control System Malfunction

Medium
P0743 Sequential Code

P0743: Transmission Control System Malfunction

Medium
P0744 Sequential Code

P0744: Transmission Control System 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