Why wont my Subaru Legacy ignition turn?

The most common reasons your Subaru Legacy ignition won't turn are a locked steering column, a worn or damaged key, a stuck ignition lock cylinder, or a transmission not fully in Park; other factors include a weak battery or an immobilizer/anti-theft issue.

When the ignition refuses to rotate, it can be due to mechanical issues in the steering lock, electrical issues that limit power to the ignition, or a security system preventing starting. This guide outlines likely causes and practical steps to diagnose and address the problem, with safety as priority.

Common causes

The following are frequent culprits and how to check them. Identifying the right cause can save time and prevent further damage.

• Steering wheel lock engaged or stiff steering column


• Key worn or damaged, not matching the lock pins


• Ignition lock cylinder stuck or jammed due to dirt, corrosion, or wear


• Transmission not fully in Park (or gear selector interlock issue)


• Immobilizer/anti-theft system malfunction or key not recognized


• Weak or dead battery affecting electrical systems


• Lock freeze or dirt buildup in cold or dusty conditions


• Ignition switch failure or faulty wiring

In most cases, addressing these issues resolves ignition problems. If the lock remains stubborn or you suspect an immobilizer or electrical fault, professional inspection is advised.

Diagnostic steps

Use these steps to systematically identify the actual cause. Start with the simplest checks and avoid forcing the key or wheel.

1. Verify the gear selector is fully in Park (P). In automatic versions, the ignition may be locked out if the transmission isn’t in Park or the shift interlock isn’t satisfied. Move the shifter gently between Park and Neutral while attempting to turn the key.


2. Check if the steering wheel is locked. If you feel resistance or hear a click, gently wiggle the wheel left and right while turning the key slowly. Do not force the key.


3. Try a spare key. A worn or damaged key is a common cause; if the spare works, you likely need a new or re-cut key.


4. Lubricate the keyway with a graphite-based lubricant if the key turns partway but then stops. Avoid oil-based lubricants which can attract dirt and gum up pins.


5. Look for immobilizer/anti-theft indicators on the dash. If the immobilizer light stays on or you hear repeated beeps, the key transponder may not be recognized; try the spare key and, if needed, contact the dealer for reprogramming or key replacement.


6. Check the battery and electrical system. A weak or dead battery can cause ignition symptoms even if the key physically turns; test battery voltage, inspect fuses related to ignition, and attempt a jump start if appropriate.


7. If your Legacy uses a push-button start, ensure the key fob is present and has a functioning battery. A dead fob will prevent the engine from starting even when you press the start button.


8. If none of the above resolves the issue, the ignition switch or steering column lock assembly may be faulty. Do not force the mechanism; seek professional assessment.

Across these steps, documenting symptoms (e.g., “key turns to ACC but not to Start” or “wheel locks when turning”) helps a technician diagnose quickly.

When to call a professional

Persistent resistance, immobilizer warnings, or a jammed lock typically require a dealer or qualified mechanic. They can inspect the ignition cylinder, test the steering lock, diagnose immobilizer faults, and reprogram or replace keys or modules as needed. Roadside assistance is advisable if you’re stranded.

Additional considerations for Subaru Legacy owners

Model-year variations can influence how the ignition system behaves. Some Legacy trims use traditional keys, while others include advanced keyless entry and push-button start. If your car has a smart key or keyless system, check the key fob battery and ensure the fob is properly detected inside the vehicle. Cold weather, dirt, and wear can contribute to ignition issues across model years. If you recently had service on the steering column, ignition, or electrical system, review the service notes for potential reassembly or torque concerns that could affect the ignition.

Summary

Ignition turning problems in a Subaru Legacy are most often linked to a locked steering column, a worn or damaged key, a stuck ignition cylinder, or a transmission not fully in Park—and can be influenced by immobilizer faults or a weak battery. Start with simple checks: confirm Park position, test a spare key, inspect the steering wheel, and assess battery/electrical health. If these steps don’t resolve the problem, seek professional help to avoid damaging the ignition or steering components and to address security-system issues.

How to get a Subaru out of lock mode?

All you have to do slightly turn the steering wheel has a little bit of give. And then turn the key. And look freedom sweet sweet freedom you're good to go.

What to do if my key ignition won't turn?

If your car key won't turn in the ignition, try turning the steering wheel while gently jiggling the key. If that doesn't work, try inserting and removing the key several times, applying gentle up-and-down pressure while turning, or spraying a lubricant like graphite into the lock. Other checks include making sure the gear shift is fully in Park or Neutral and checking if the battery is dead, as modern cars may not start without sufficient power. 
This video demonstrates how to fix a key that won't turn due to a locked steering wheel: 1mWorld DrivingYouTube · Feb 7, 2019
Immediate fixes

• Relieve steering wheel tension: Turn the steering wheel firmly in one direction, then the other, while simultaneously trying to turn the key. This can release the steering column lock. 
• Check the gear shift: For automatic vehicles, make sure the gear shift is fully in the "Park" or "Neutral" position. Gently rock the shift lever back and forth to ensure it's properly seated. 
• Jiggle or wiggle the key: Try gently wiggling the key up and down or back and forth while turning it. This can help align worn pins in the ignition cylinder. 
• Insert and remove the key: Pull the key out slightly, re-insert it fully, and try turning again. You can also try sliding the key in and out several times to dislodge debris. 

You can watch this video to learn how to fix a key that won't turn by cleaning the key and ignition cylinder: 59sSure Lock & Key LLCYouTube · Dec 1, 2024
Lubrication and key inspection 

• Lubricate the ignition: Spray a graphite or silicone-based lubricant into the keyway. Avoid oil-based lubricants that can attract dirt. Wipe off any excess, then try the key again. 
• Inspect and clean the key: Check if the key is bent or worn out. If it looks worn, it may need to be replaced. You can also clean the key with warm soapy water and a toothbrush. 

Other potential issues

• Check the battery: Some modern vehicles require electrical power to unlock the ignition. If the battery is dead, the key may not turn. A jump start could solve the problem. 
• Identify worn or broken parts: If these steps don't work, the issue could be a worn key or a problem with the ignition lock cylinder. In this case, the key may need to be replaced or the ignition cylinder may require professional service. 

Why won't my Subaru Legacy key turn?

If your Subaru Legacy key won't turn, first try wiggling the steering wheel while gently turning the key to release pressure on the lock. If that doesn't work, ensure the gear shift is fully in Park; a faulty park/neutral position switch can prevent the key from turning. If the issue persists, the ignition lock cylinder may be worn or require lubrication with graphite powder.
 
Common solutions

• Wiggle the steering wheel: Gently move the steering wheel back and forth while turning the key. The steering lock can bind the ignition cylinder, and this will often relieve the pressure. 
• Check the gear shift: Make sure the gear selector is firmly in the "Park" position. If it's not, the car may not allow the key to turn. If you're having trouble getting it into Park, try rocking the car slightly forward and back while shifting. 
• Lubricate the lock cylinder: If dirt or wear is the issue, try using a small amount of graphite powder directly into the ignition lock cylinder. Avoid using oil-based lubricants like WD-40, which can attract more dirt. 
• Try a different key: A worn or damaged key can sometimes cause this issue. Try a spare key if you have one to rule out a problem with the key itself. 

You can watch this video to learn how to overcome the steering lock: 58sTyson The Subaru Specialist YouTube · Nov 8, 2023
More advanced issues

• Faulty park/neutral position switch: If the gearshift sensor is malfunctioning, it may not correctly signal that the car is in Park. This is a common issue on some Subaru models and can be fixed by adjusting or replacing the switch, which sometimes requires disassembling the center console to access. 
• Weak battery: A weak battery can cause electrical issues that prevent the key release mechanism from working. 
• Worn ignition lock cylinder: Over time, the internal components of the ignition lock cylinder can wear out. This may require the cylinder to be replaced by a locksmith or dealership. 

This video explains how to fix a faulty park/neutral position switch: 58sTalking With CarsYouTube · Aug 30, 2024

How do you unlock the ignition on a Subaru?

Has got too much pressure on the ignition cylinder. The easy way to relieve this if you firmly grab the steering wheel. And pull on the steering wheel to release pressure from the ignition.