P0863: P0863: Transmission Control Module (TCM) - Low Transmission Fluid Pressure

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

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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 P0863 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The Transmission Control Module (TCM) has detected low transmission fluid pressure, which can cause transmission problems and potentially lead to transmission failure.

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Symptoms

• Transmission slipping
• hesitation
• or failure to engage gears
• unusual noises
• or a check engine light

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Common Causes

• Low transmission fluid level
• clogged transmission fluid filter
• faulty transmission fluid pressure sensor
• or a malfunctioning transmission control module

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How to Fix P0863 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check transmission fluid level and top off if necessary. 2. Inspect and clean or replace the transmission fluid filter. 3. Check and replace the transmission fluid pressure sensor if faulty. 4. Update or replace the transmission control module if necessary.

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