Q: My car runs but says no key detected.

asked by on June 29, 2017

I have a 2013 Nissan Maxima. The car starts and drives but always says No Key detected. I replaced the battery on the key but the No Key light keeps coming on. I want to know how to fix this problem because I do not want to risk the car not starting one of these days. The Key fob works. Only problem is that I still receive the No Key light on they dashboard. Thanks

My car has 100000 miles.
My car has an automatic transmission.

There is a problem with either the key fob or the electronic control system in the car. Occasionally, cell phone interference causes issues with the system leading to the "no key" warning light. With regard to the key fob, I would first suggest going through the entire re-programming routine to see if that resolves the issue. If not, the next step would be to program a known good key fob. If that doesn’t resolve it, if the electronics controlling the system are flash programmable, any available software updates should be installed. If that doesn’t resolve it, there is a decision tree in the factory service manual which is used to "back in" to the origin of the problem. In your case, the controller is obviously sending a signal to illuminate the warning light. But, if no defect exists in the key fob, and there is no external RFI/EMI interference, it may be that the controller is bad. My guess is it’s a key fob issue and thus you should start be re-programming the key fob or trying a different one. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an electrical component/circuit diagnostic and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

When I drive My steering is turning left and right without turning I don't know what is the problem

Hello, thanks for writing in about your 1997 Nissan Maxima. From what you've described you should have the front tires checked. One of them may have a broken/shifted belt. The tire basically becomes egg-shaped rather than round and can potentially...

Hesitation, sputtering and check engine light flickering

The problems you are having may be the electrical harness intermittently loosing contact with the engine control module (ECM). The ECM may be loosing power intermittently from the main power supply. This is not a common issue; a qualified mechanic...

Engine Misfire in cylinder 5

It is possible that there could be an issue with the fuel injector or the compression on that cylinder. I would recommend having the compression tested on all the cylinders to ensure that the piston rings are functioning properly.

Related articles

2012 Kia Optima vs. 2012 Nissan Altima: Which One Should I Buy?
Mid-size sedans can be pretty basic, with four doors and simple and straightforward options, decent but not stellar gas mileage, and an uninspired interior. They can also have great design and fight off boredom through sporty suspension and exciting technology...
A Buyer’s Guide to the 2012 Nissan Frontier
When When looking for a truck, the 2012 Nissan Frontier could be the vehicle you’ve been hunting for. It has a great look, a strong engine, and it is reliable. The vehicle has been making gains on other trucks in...
The Best Used Cars to Buy If You're a Teacher
If If you are a teacher, probably foremost on your mind is getting to school on time. You would also probably like a used car that is easy on gas and not terribly expensive, and will hold your gym gear...