← View Generic P0745 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0745: P0745: Transmission Control System Malfunction

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 P0745 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

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

  • • Sluggish shifting
  • • hesitation
  • • or delay when shifting gears
  • • unusual noises
  • • or difficulty shifting into gear.
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Common Causes

  • • Faulty transmission solenoid
  • • clogged transmission filter
  • • low transmission fluid level
  • • or faulty transmission control module.
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How to Fix P0745 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check transmission fluid level and top off if necessary. 2. Inspect and clean the transmission filter. 3. Replace the faulty transmission solenoid. 4. Update the transmission control module software.

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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.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Transmission solenoid Shop ↗ Transmission filter Shop ↗ Transmission fluid Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P0745

P0743 Sequential Code

P0743: Transmission Control System Malfunction

Medium
P0744 Sequential Code

P0744: Transmission Control System Malfunction

Medium
P0746 Sequential Code

P0746: Transmission Control System Malfunction

Medium
P0747 Sequential Code

P0747: Transmission Control System Malfunction Affecting Gear Shifting

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