How To Start Infiniti Q50 With Dead Key Fob

A dead key fob can be a frustrating experience, especially when you need to access and start your Infiniti Q50. Modern key fobs rely on battery power to transmit signals, and when the battery dies, the convenience they offer can quickly turn into an inconvenience. Fortunately, Infiniti has incorporated a backup system into the Q50 that allows you to start the vehicle even with a dead key fob. This article will guide you through the process of starting your Infiniti Q50 when your key fob is not working.

Accessing the Vehicle

The first step is to gain entry into your Infiniti Q50. Because the key fob is not functioning, you will need to use the physical key that is embedded within the key fob itself.

Locating the Physical Key

The physical key is usually concealed within the key fob. The design varies slightly depending on the model year, but the key is typically released by a button or a small latch on the key fob casing.

1. Examine your key fob closely for a button, switch, or indentation near the key ring attachment.
2. Press or slide the button/switch while simultaneously pulling on the end of the key fob where the physical key is housed.
3. The physical key should slide out, revealing a traditional metal key.

Unlocking the Door

Once you have removed the physical key, you can use it to unlock the driver's side door. Locate the keyhole on the driver's side door handle. It is often hidden beneath a small cover.

1. Carefully insert the tip of the physical key into the small indentation or slot at the bottom of the door handle cover.
2. Gently pry the cover off to reveal the keyhole. Be careful not to scratch the paint.
3. Insert the physical key into the keyhole.
4. Turn the key clockwise to unlock the door.

Starting the Engine

Now that you have accessed the vehicle, you will need to start the engine using the backup starting procedure. This involves using the key fob itself in conjunction with the start/stop button.

Locating the Start/Stop Button

The start/stop button is generally located on the dashboard, near the steering wheel. Consult your owner's manual if you are unsure of the exact location in your specific Infiniti Q50 model.

Using the Key Fob to Start the Engine

The Infiniti Q50 uses a system that allows the vehicle to detect the key fob even if the battery is dead, by physically touching the start/stop button with the key fob. This sends a signal allowing the car to start.

1. Press the brake pedal firmly. This is a necessary safety precaution.
2. Hold the key fob directly against the start/stop button. Ensure the entire key fob is in contact with the button.
3. While holding the key fob against the button, press the start/stop button.
4. The engine should start. If it does not start on the first attempt, try again, ensuring firm and consistent contact between the key fob and the start/stop button.

Note: The exact timing may vary slightly depending on the specific model year and trim level of your Infiniti Q50. Consult your owner's manual for the most accurate instructions specific to your vehicle.

Addressing Potential Issues

If you are still unable to start the engine after following the above steps, there are a few potential issues to consider.

Check the Battery

While you suspect the key fob battery is dead, it's possible the vehicle's battery is the actual problem. Check the dome lights and other electrical systems to see if they are functioning properly. If the car's battery is weak or dead, you will need to jump-start the vehicle.

Key Fob Synchronization

In rare cases, the key fob may have become desynchronized with the vehicle's security system. This is less likely to occur simply due to a dead battery, but it is a possibility. The owner's manual will have the resynchronization procedure, or you can contact an Infiniti dealership.

Immobilizer System

The Infiniti Q50 is equipped with an immobilizer system that prevents the engine from starting if an unauthorized key is used. If the immobilizer system is malfunctioning, it may prevent the engine from starting even with the correct key fob. In this case, you will need to contact an Infiniti dealership for assistance.

Seek Professional Assistance

If you have tried all the above steps and are still unable to start the engine, it is recommended that you contact an Infiniti dealership or a qualified automotive technician. They have the specialized tools and knowledge to diagnose and resolve the issue.

Replacing the Key Fob Battery

To prevent future occurrences, you should replace the key fob battery as soon as possible after successfully starting your car using the emergency method. Replacing the battery is a straightforward process that can be done at home with a few simple tools.

Identifying the Battery Type

The first step is to identify the correct battery type for your key fob. This information can be found in your owner's manual or by examining the old battery once you have opened the key fob. The most common battery type is a CR2032 button cell battery.

Opening the Key Fob

The method for opening the key fob varies slightly depending on the model year. However, most key fobs can be opened by using a small screwdriver or a similar tool to pry open the casing. Refer to your owner's manual or search online for specific instructions for your key fob model.

1. Locate the small slot or indentation on the key fob casing.
2. Insert a small flathead screwdriver or a plastic prying tool into the slot.
3. Gently twist the screwdriver or prying tool to separate the two halves of the key fob casing.

Replacing the Battery

Once you have opened the key fob, you will see the battery. Pay attention to the orientation of the battery before removing it. The positive (+) side should be facing up or down depending on the design.

1. Carefully remove the old battery. You may need to use a small screwdriver or a plastic prying tool to gently lift it out of its compartment.
2. Insert the new battery, ensuring that it is oriented correctly (positive (+) side up or down as indicated).
3. Snap the two halves of the key fob casing back together.

Testing the Key Fob

After replacing the battery, test the key fob to ensure that it is working properly. Press the lock and unlock buttons to see if the doors respond. Also, try starting the engine using the key fob. If the key fob is not working, double-check that the battery is installed correctly and that the casing is securely closed.

Preventative Measures

Taking a few simple preventative measures can help you avoid the inconvenience of a dead key fob battery.

• Replace the battery regularly: Replace the key fob battery every one to two years, even if it is still working. This will help prevent the battery from dying unexpectedly.
• Keep a spare battery: Keep a spare battery in your glove compartment or at home so that you can quickly replace the battery if it dies.
• Protect the key fob from extreme temperatures: Extreme temperatures can shorten the lifespan of the battery. Avoid leaving your key fob in direct sunlight or in a very cold environment.
• Listen for warning signs: If you notice that the key fob is not working as reliably as it used to, or if the range is decreasing, it may be a sign that the battery is starting to weaken. Replace the battery as soon as possible.

By following these preventative measures, you can minimize the risk of experiencing a dead key fob battery and ensure that your Infiniti Q50 is always ready to go.

Summary

Knowing how to start your Infiniti Q50 with a dead key fob is essential for ensuring you are not stranded. The ability to access your vehicle using the physical key and start the engine by touching the key fob to the start/stop button provides a reliable backup system when the key fob battery fails. Regular maintenance, such as replacing the key fob battery and being aware of warning signs, can prevent unexpected issues and maintain the convenience of your keyless entry system.