Nissan Altima Hybrid and the "Intelligent" Key

1. That's strange that your relative was able to do that. When I bought my NAH, my salesman told me that one of the advantages of the smart key is that the car can't be driven if the key is not in it (the scenario he mentioned was stopping at a convenience store on the way to work - you don't have to turn the car off, just take the key with you). I assumed he meant that if the key was removed from the passenger compartment, something in the car would lock the transmission in 'Park'. I just may stop in and ask him about this.
2. I haven't had this happen (at least I don't think so), but if you look in the users manual, it says that after locking the doors with the door handle button, pull the door handle to make sure it actually locked. Another possibility is that you are inadvertently pressing the button on the remote if it's in your pocket.

1)We can hope the car will "only" continue to run "for a time". I have the Altima 2007 and my husband went back in the house after I started the car with my keys (so he could open the door with my house key) and after a few seconds a warning came up on the dash. The vehicle will not START if the key isn't inside the vehicle. If you start it and get out with the key in your pocket they may drive away but they will not be able to start it again if stopped and turned off. I have never tested it and certainly don't want to get 2 miles down the road and the engine cut off and not have a key.
2)If the spare fob is in the vehicle the doors will unlock and a beep will sound. Most certainly check the door handle to make sure. Even if you walk away knowing you locked that sucker, you may stick the keys in your pocket and (by that time) be too far away to hear the doors accidently unlock. The fob will work a remarkable distance from the vehicle. If you are in a busy parking lot you may not realize it is your horn that is blowing or see your lights flash when the buttons are pushed by accident.
3) I am definitely going to ask my dealer about this.

Ok. so here is the deal. The idea around the I-key is so your wife can leave her keys in her purse and never have to pull them out, (or you and your manbag/pocket) to enter/start/exit the car.

The car will not start without i-key within a small distance to the pushbutton igintion..this is where the antenna is. The exterior anttenas are in both side rearview mirrors and one in the trunk trim panel, these antennas are for locking and unlocking only and have no effect on starting.

When the I-key is within correct distance of pushbutton ignition, is is consantly talking back and forth with the BCM (body control modlue). This constant communication is why your battery life in your keyfob is not lasting very long, to fix... The only way to stop communication is to insert I-key into the key slot by your left knee.

The car will never turn off , or not allow you to drive because the I-key has left the correct distance from the pushbutton ignition. That is just not built into the system discription. Why? Becasue there is no car that would shut off as intended by manufacture without a MANUAL command from the driver/passenger.

As far as the unlocking issue,, Search every where for an extra key under the seat, trunk or hiding somewhere,,, I see this all the time, right from the port. The key is to far from the pushbutton, yet close enough to an exterior antenna (trunk) and does not have a starting issue ,,, yet does not always lock doors

in 3-14 of my manual, it says to to hold the lock and unlock buttons for 2 seconds to to turn on the horn feature

My 2007 Altima Hybrid often will not start up, even with new battery in the key fob. The accessories come on, but the car won't go. What is wrong? Yes, I have my foot on the brake.

Sometimes the fob buttons get pressed by other things in your pocket, change, ect. Happens to me every once in a while. Wish they made a fob button cover.

Do you have a blue tooth device? I am having the same problem and suspect that my blue tooth is interferring with the car starting! been very frustrating!

We have a 2005 Nissan Murano with the Intelligent Key and the Convenience Door Switches and we have never once come upon the car unlocked when we had locked it. As for the Intelligence Key, its absence is not going to disable the vehicle for safety reasons, but the vehicle will emit a series of loud and rapid beeps, the specific pattern of which seems to change intermittently with every instance.

My 2007 Altima Hybrid has the recurring issue of accessories working, but engine not starting (several times every winter or any time I don't drive it for a week). It happened again last week and then I also got the key warning light. Dealer said both fob batteries were dead. These seem to be multiple symptoms of an underlying cause. I'll ask the dealership about the Brake Switch Assembly. It does seem related to the brake. When I brake, the dash lights go off, unable to start. When I don't brake, accessories come on just fine.

Iris, did you replace the DL 2032 coin cell battery in the key fob? Did that help? Thanks, S.Roy, San Diego.

I HAVE A 2007 NISSAN ALTIMA AND IT IS LOCKED, SEEMS TO BE ARMED WITH VEHICLE IMMOBILIZER. DOES ANYBODY KNOW HOW TO UNLOCK? NOTHING WORKS!

May be your relative opened the car while you were a bit close to the car, in other words as i was close to the care but not that close my Brother opened it with my knowledge as i wanted to test it but i can really recognize the thief.(he he) because you are almost near the car. i guess the system runs for a short distance and then intelligent system blocks access to the driving system.

nissan altima can be dived w/o the key the only thing is when you turn it off will not turn on w/o the key but some new models have a secure thing that when the key isnt in the car still on but as far as the key is away from the car start biping so u know that the key is no there and the bip is more frequently and at some point it will stop but nothing looks in parking or anything like that

Please help my nissan altima hybrid wont turn on.
I have power but car just wont start.