Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Replace the Key Battery on the Infiniti Q40

Model: Infiniti Q40 V36 - Years 2014-2015
Part: Key

When you notice that the remote key does not open the vehicle's doors, the battery in the key has likely died, and it needs to be replaced. Here are the instructions on how to proceed: First, press the small button to release and extract the emergency key. Then, use a sharp object to pry open the seam of the remote cover and detach it. Behind the cover is the battery compartment, which can be removed by prying it with a small sharp object. Take the new CR 2025 battery and position it, ensuring the correct orientation with the positive terminal facing up. Finally, reattach the remote cover and reinsert the emergency key.

Updated on 20 May 2026 by ScegliAuto

Video tutorial

Related tutorials

Where to Find the Fuse Box in the Infiniti Q40
Where to Find the Fuse Box in the Infiniti Q40
Infiniti Q40 (2014-2015 / V36) The fuse box in the Infiniti Q40 is well hidden and protected, making it not always easy to locate. Fortunately, this guide provides all the informat…
How to Reset the Oil Service in the Infiniti Q40?
How to Reset the Oil Service in the Infiniti Q40?
Infiniti Q40 (2014-2015 / V36) In this tutorial, you will see how to reset the oil service in the Infiniti Q40. Before performing this simple and quick operation, ensure that you h…
How to Replace the Door Light Bulb in an Infiniti Q40?
How to Replace the Door Light Bulb in an Infiniti Q40?
Infiniti Q40 (2014-2015 / V36) To replace the door light bulb in an Infiniti Q40, pry inside the housing of the dome light at the lower inner part of the door. Once the dome light …

Other guides you may be interested in

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos