Losing your car keys is a stressful experience, especially when you're facing a cold morning and a stubborn Subaru refusing to start. Don't panic! This guide will walk you through various methods to get your Subaru running again, even without your key fob. We'll cover situations ranging from a simple dead battery in your key fob to more complex scenarios requiring professional assistance.
Understanding Your Subaru's Security System
Before we delve into the solutions, it's crucial to understand how your Subaru's immobilizer system works. This system prevents unauthorized individuals from starting your vehicle. It communicates with your key fob's transponder chip, allowing the engine to crank only when it receives the correct signal. Bypassing this system requires careful consideration and, in some cases, professional intervention.
Method 1: Check the Key Fob Battery
The simplest and most common reason for a car not starting is a dead key fob battery. This is often mistaken for a more serious issue.
- Symptoms: Your key fob lights don't illuminate, or the remote functions (lock/unlock) are unresponsive.
- Solution: Replace the key fob battery. You'll typically find instructions within the key fob's manual or online. A simple CR2032 battery is usually required. Once replaced, attempt to start the vehicle again.
Method 2: Utilizing Subaru's Smart Key System (If Equipped)
Some Subaru models incorporate a smart key system. This system allows you to start your car without physically inserting a key. However, the key fob must still be within range.
- Symptoms: Key fob is present, but the car won't start.
- Solution: Ensure the key fob is close enough to the ignition switch. Try pressing the start button while holding the key fob in different positions. If the battery is low, try replacing it.
Method 3: Spare Key or Emergency Key
Do you have a spare key? This is the easiest fix. Even if it's the standard key, not the smart key, it may still work.
- Symptoms: You've tried Methods 1 and 2, and the car still won't start.
- Solution: Locate your spare key. Use the key to unlock the door, then attempt to start the vehicle as normal.
Method 4: Calling for Professional Assistance
If you've exhausted all other options, it's time to call for professional help.
- Symptoms: None of the above methods work, or you suspect a more serious issue.
- Solution: Contact your Subaru dealership or a trusted roadside assistance service. They can assist with key replacement, diagnosing electrical problems, or any other potential issues preventing your Subaru from starting.
Important Note: Attempting to bypass your Subaru's immobilizer system without proper knowledge can cause damage to the vehicle's electronic systems. It's strongly recommended to seek professional help in complex situations.
Preventing Future Key Issues
Proactive steps can minimize the risk of future key-related problems.
- Keep a Spare Key: Always have a spare key stored securely in a safe and readily accessible location.
- Regularly Check Key Fob Battery: Test the battery regularly and replace it promptly when needed.
- Consider a Key Fob Cover: Protecting your key fob with a cover can help prevent damage and prolong the life of the battery.
This guide provides a range of solutions for how to start a Subaru without a key. However, remember that professional assistance is always the safest option if you encounter problems beyond simple battery replacements or locating a spare key. Prioritizing safety and protecting your vehicle's electronics should always be your top priority.
