Severity High
P2789

Clutch Adaptive Learning at Limit

📅 Last reviewed: July 2026
What does the P2789 code mean?

The transmission control module (TCM) has detected that the clutch adaptive learning values have reached their maximum or minimum adjustment limits. This indicates that the clutch is unable to compensate for wear or mechanical issues through normal adaptive strategies, often due to excessive clutch wear, low fluid level, or internal transmission problems.

High
Severity
$150-$500
Typical Cost
Medium
Frequency

1. Most Common Causes

2. Symptoms You Will Notice

3. Step-by-Step Diagnosis

1

Step 1: Scan for additional codes and record freeze frame data.

2

Step 2: Check transmission fluid level and condition; top off or replace if necessary.

3

Step 3: Perform clutch adaptation reset using a professional scan tool and test drive.

4

Step 4: Inspect clutch actuator and solenoids for proper operation; replace if faulty.

5

Step 5: If issue persists, remove transmission and inspect clutch pack for wear or damage.

4. Frequently Asked Questions

Is it safe to drive with this code?

Driving is not recommended as it may lead to complete clutch failure or transmission damage. Have the vehicle towed to a repair shop.

How much does it cost to fix?

Costs range from $150 for fluid change and adaptation reset to $500+ for clutch replacement or internal repairs.

5. Commonly Affected Makes

This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.

6. Related Codes

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