P1792 — Transmission Control Module Reprogrammable Memory

What Does P1792 Mean?

P1792 is a manufacturer-specific diagnostic trouble code: Transmission Control Module Reprogrammable Memory. This code applies to BUICK, CADILLAC, CHEVY, GM, GMC vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1792

⚠️ Check Engine Light (MIL) illuminated
⚠️ Transmission Control Module Reprogrammable Memory not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Faulty Transmission Control Module Reprogrammable Memory
🔍 Wiring or connector issue in Transmission Control Module Reprogrammable Memory circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P1792 mean?

P1792 indicates: Transmission Control Module Reprogrammable Memory. The vehicle's computer has detected that the Transmission Control Module Reprogrammable Memory is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1792?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1792 for extended periods may cause additional problems.

How much does it cost to fix P1792?

Repair costs for P1792 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Transmission Control Module Reprogrammable Memory and related wiring
🔧 Replace faulty Transmission Control Module Reprogrammable Memory

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1792: Transmission Control Module Reprogrammable Memory