← View Generic P0994 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0994: P0994: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

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 P0994 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 be causing issues with transmission shifting or performance.
⚠️

Symptoms

  • • Transmission slips
  • • hesitates
  • • or refuses to engage gears
  • • unusual noises
  • • or vibrations while driving
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Common Causes

  • • Faulty pressure control solenoid 'A'
  • • clogged or dirty transmission filter
  • • low transmission fluid level
  • • or faulty transmission control module
🛠️

How to Fix P0994 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check transmission fluid level and condition, 2. Clean or replace the transmission filter, 3. Inspect and test the pressure control solenoid 'A', 4. Update or replace the transmission control module if necessary

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Transmission filter Shop ↗ Pressure control solenoid 'A' Shop ↗

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Related Diagnostic Codes

Other codes that may appear with P0994

P0992 Sequential Code

P0992: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium
P0993 Sequential Code

P0993: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium
P0995 Sequential Code

P0995: Transmission Advanced System - Pressure Control Solenoid 'A' Performance

Medium
P0996 Sequential Code

P0996: 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