What Does P07AD Mean?
Transmission friction element "F" is stuck in the applied (on) position and will not disengage when the TCM commands release. This creates a condition where element F remains continuously engaged, potentially causing simultaneous application of incompatible gear elements. The resulting gear bind-up produces harsh shifts, drivetrain vibration, abnormal engine braking, or the transmission refusing to shift properly between certain gears.
Safety Warning
Do not drive. A stuck-on friction element causes gear tie-up that can lead to sudden deceleration or drivetrain lockup. This is an immediate safety hazard. Tow the vehicle to a qualified transmission shop.
Common Causes
30%
Element F clutch piston seized in bore due to seal deterioration, debris, or corrosion
25%
Blocked exhaust passages or stuck valve in valve body preventing element F pressure release
20%
Control solenoid mechanically stuck or electrically shorted in apply position
15%
Friction and steel plates bonded together from thermal damage
10%
Broken return spring or spring retainer preventing piston release
Diagnostic Steps
1
Review freeze frame data and monitor real-time gear ratios to confirm element F is engaged in gears where it should be released.
2
Monitor transmission fluid temperature for abnormal rise indicating parasitic drag from the stuck element.
3
Command solenoid output tests via scan tool to verify the element F control solenoid can be properly de-energized.
4
Measure element F servo apply and release pressures to determine if the hydraulic circuit can properly exhaust pressure.
5
Internal transmission inspection is required if all external diagnostics pass — evaluate piston, spring, and clutch plate condition.
Estimated Repair Cost
$2,000 - $5,000
Parts + labor, varies by vehicle and location
Transmission friction element "F" is stuck in the applied (on) position and will not disengage when the TCM commands release. This creates a condition where element F remains continuously engaged, potentially causing simultaneous application of incompatible gear elements. The resulting gear bind-up ...
The most common cause of P07AD (Transmission Friction Element "F" Stuck On) is: Element F clutch piston seized in bore due to seal deterioration, debris, or corrosion
Typical repair costs for P07AD range from $2,000 to $5,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Do not drive. A stuck-on friction element causes gear tie-up that can lead to sudden deceleration or drivetrain lockup. This is an immediate safety hazard. Tow the vehicle to a qualified transmission shop.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P07AD to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
