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Mike V.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 23617
Experience:  Nissan factory trained and Certified Subaru Technician.
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I think the smart key is dead, no I think it is the battery,

Customer Question

I think the smart key is dead
JA: Is the key stripped or worn?
Customer: no I think it is the battery
JA: What is the model/year of your smart?
Customer: 2008 Nissan Altima
JA: Are you fixing your Altima yourself? What have you tried so far?
Customer: So far I've just gotten in the car with the key. I can't start the car
JA: Anything else you want the mechanic to know before I connect you?
Customer: That should be it.
Submitted: 1 month ago.
Category: Nissan
Expert:  Mike V. replied 1 month ago.

Hello and thank you for your question!
My name is ***** ***** I will be assisting you with your question today.

Expert:  Mike V. replied 1 month ago.

Does it make any sounds when you try to start it?

Customer: replied 1 month ago.
Expert:  Mike V. replied 1 month ago.


It doesn't sound like the smart key is the problem. It sounds like the cars battery is dead. Since you couldn't unlock it with the keyfob and you can't start it, I think the actual car battery is the problem. Try a jump start first. Put the donor car on it for 15 minutes. Make sure you hear the engine on the donor car sort of strain when you connect it to your car, give it 15 minutes then try to start it. From here it sounds like a battery problem, but not the key battery.

Please try this and let me know.


Customer: replied 1 month ago.
I see a car light in the dash with a key symbol
Expert:  Mike V. replied 1 month ago.

That's ok, what color is the key symbol?

Expert:  Mike V. replied 1 month ago.

Sorry for the delay, I lost my internet connection. Did you try the jump start?

Customer: replied 1 month ago.
It is orange.
Expert:  Mike V. replied 1 month ago.

If it were red, then I would agree. Also, there should be a slot to the left of the steering wheel for you to put the fob in. Put the mechanical key back in the key fob, then put the fob in the slot. If it's the battery in the key fob, the car should start. If the result is the same, get the jump start and have the battery tested.

Customer: replied 1 month ago.
Waiting on someone to come and jump it off.
Expert:  Mike V. replied 1 month ago.

Ok, I do have to step out for a bit, but post your results here and we can go from there.

I will get your response as soon an I get back online.

Please let me know what more I can do to assist you today. Also, please remember to rate my answer, Just Answer does not compensate me for my time and resources. Follow up questions are included in the price of your question. If you are using the free trial, or have a subscription a rating is still required.
Thank you so much!

Expert:  Mike V. replied 1 month ago.

Was jumping it successful?

Expert:  Mike V. replied 1 month ago.

Haven't heard back from you so I thought I would check on you and see if you needed further assistance?