P072A: Transmission Stuck in Neutral
Code P072A indicates that the transmission control module (TCM) has detected the transmission is stuck in neutral, meaning no gear is engaged. This can be caused by low transmission fluid, internal mechanical failure, faulty shift solenoids, or a defective TCM. The vehicle may not move when the gear selector is in Drive or Reverse.
01. Most Common Causes
- Low or contaminated transmission fluid
- Faulty shift solenoid
- Internal transmission mechanical failure
- Defective transmission control module (TCM)
02. Symptoms You Will Notice
- Vehicle does not move when in Drive or Reverse
- Transmission slips or hesitates
- Check Engine Light illuminated
- Transmission warning light on
03. Step-by-Step Diagnosis
Step 1: Check transmission fluid level and condition; top off or replace if necessary.
Step 2: Use a scan tool to read live data from TCM and check for other codes.
Step 3: Inspect wiring and connectors to the transmission solenoids and TCM.
Step 4: Test shift solenoids and valve body operation; replace if faulty.
Step 5: If no external issues found, internal transmission inspection may be needed.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not safe. The vehicle may not move or could unexpectedly shift, posing a safety risk. Have it towed to a repair shop.
How much does it cost to fix?▼
Costs vary from $150 for a fluid change or solenoid replacement to $500 or more for internal transmission repairs or TCM replacement.