P0989: P0989: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction

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 P0989 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The transmission control module (TCM) has detected a malfunction in the torque converter clutch solenoid circuit, which can cause issues with transmission shifting and performance.

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Symptoms

• Transmission slips
• hesitation
• or hesitation during acceleration
• unusual noises
• or difficulty shifting gears.

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Common Causes

• Faulty torque converter clutch solenoid
• wiring issues
• or TCM software problems.

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How to Fix P0989 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clear any trouble codes. 2. Inspect and clean the torque converter clutch solenoid and wiring harness. 3. Replace the torque converter clutch solenoid if faulty. 4. Update TCM software if necessary.

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