P0886: P0886: Transmission Control Module (TCM) Internal Failure

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost

$500 - $2000

Parts & Labor

Difficulty

4/5

2-4 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 P0886 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The Transmission Control Module (TCM) has detected an internal failure, which may be due to a faulty TCM, wiring issue, or other internal malfunction.

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Symptoms

• Transmission slips
• hesitation
• or refuses to engage gears
• loss of power
• or check engine light illumination.

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Common Causes

• Faulty TCM
• wiring issue
• internal transmission failure
• or other internal malfunction.

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How to Fix P0886 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check for any wiring issues and repair or replace as needed. 2. Update the TCM software if necessary. 3. Replace the TCM if it's faulty. 4. Inspect and replace any faulty transmission components.

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