P2788 minor

Auto Shift Manual Adaptive Learning at Limit

The P2788 code means the vehicle's onboard diagnostic system has detected: Auto Shift Manual Adaptive Learning at Limit. This is a minor severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: Advanced
Estimated cost: $100 - $300 (TCM reset/reflash)

Check Your Fluid First

ANCEL AD310 OBD-II Scanner

Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.

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Read Transmission Codes

LAUNCH CRP123X (Reads All Systems)

Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.

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Common Symptoms

Check Engine Light illuminated
Harsh or erratic transmission shifting
Transmission may enter limp mode
Delayed gear engagement
Abnormal transmission behavior

Probable Causes (Ranked by Likelihood)

Faulty sensor or solenoid in the affected circuit High
Wiring fault or connector corrosion High
Low or degraded transmission fluid Medium
Valve body issue Medium
TCM/PCM malfunction Low

Step-by-Step Diagnostic Procedure

Scan for codes and confirm P2788 with freeze frame data
Check transmission fluid level and condition
Inspect wiring and connectors for the affected circuit
Test the specific sensor or actuator identified in the code description
Check for related technical service bulletins for your vehicle

Frequently Asked Questions

What does P2788 mean?

P2788 indicates: auto shift manual adaptive learning at limit. This code is set by the transmission control module when it detects an issue with this specific circuit or component.

Can I drive with P2788?

Yes, but schedule a repair soon.

How much does it cost to fix P2788?

Typical repair costs are $100 - $300. The specific cost depends on whether the fix involves a sensor replacement, wiring repair, or more extensive transmission work.