On a closed track, open Line Lock and hold steering-wheel OK to initialize; once stopped in a forward gear, press the brake firmly, press OK and release the pedal, then press OK again to release the system.
Check that your vehicle has it.
Verified for equipped 2025 Mustang configurations with Line Lock in Track Apps.
- Required equipment / service
- Track Apps and Line Lock
Does the documented scope match your car?
This check combines the verified year, any source-supported powertrain scope, source-named trim/package and required equipment. It does not read a VIN or factory build record.
Published availability and qualifications
Verified for equipped 2025 Mustang configurations with Line Lock in Track Apps.
Know what kind of control to look for.
This original category diagram is an orientation aid, not a picture of your exact trim. Use the written labels and your vehicle manual to identify the real control.
Step by step.
- 01
On a level closed course, run the engine, close both doors, release the parking brake, switch Auto Hold off and keep the steering wheel straight.
- 02
Open Track Apps > Line Lock and hold the steering-wheel OK button to initialize below 25 mph.
- 03
Stop in a forward gear, press the brake firmly, press OK and then release the brake pedal when prompted.
- 04
Watch the countdown and press OK to release Line Lock early; normal braking also returns if the system cancels.
Important limits
- Line Lock is for track use only, never public roads.
- It can cause significant rear-tire wear.
- A spare tire, parking brake, Auto Hold, adaptive cruise or a system fault can prevent engagement.
Quick checks.
- ✓If initialization fails, verify the car is level, below 25 mph and not in slippery mode.
- ✓If engagement fails, stop fully in a forward gear with the wheel straight.
- ✓If it releases early, check the countdown and whether the brake or parking brake was applied.
What happened on your vehicle?
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2025 Ford Mustang Owner's Manual — Line Lock
We use the written official source to determine the steps and applicability shown above.
Reviewed with a visible trail.
Scope and steps were checked by Car Cheat Codes Editorial Review. A guide is narrowed or corrected when the source does not support a broader claim.
- Published
- Last modified
- Source checked
Guide change history
- Initial verified publication.