← View Generic P0955 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0955: P0955: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

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 P0955 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The transmission control module (TCM) has detected a problem with the pressure control solenoid 'A' performance, which may cause issues with transmission shifting and performance.
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Symptoms

  • • Transmission slipping
  • • hesitation
  • • or refusal to engage gears
  • • unusual noises
  • • or vibrations
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Common Causes

  • • Faulty pressure control solenoid 'A'
  • • clogged transmission filter
  • • low transmission fluid level
  • • or electrical issues
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How to Fix P0955 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check transmission fluid level and condition; top off or change as needed. 2. Inspect and clean the transmission filter. 3. Test the pressure control solenoid 'A' for proper function. 4. Replace the pressure control solenoid 'A' if faulty.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Pressure Control Solenoid 'A' Shop ↗ Transmission Filter Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with P0955

P0953 Sequential Code

P0953: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium
P0954 Sequential Code

P0954: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium
P0956 Sequential Code

P0956: Transmission Advanced System - Pressure Control Solenoid 'A' Circuit Low

Medium
P0957 Sequential Code

P0957: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

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