FOB Key not working

[bicsintegra]

my battery died and i recharged it as it has been sitting for almost 1 1/2 months now. my FOB Key works but my wife's does not is there a way to reset hers without going to the dealership? any help would be appreciated,
Thanks

[The00Dustin]

Is this really for the 2006+ M? I've seen many a post that says the consult has to be used and all of the patters like this are for older cars. Also, while I understand how to get to ACC, I don't know if the port for the intelligent key would be considered "the ignition key cylinder." Intelligent keys weren't optional in 2006+ M's, were they?

[The00Dustin]

Good to know, hopefully I never need this, but if I do, it'll be a nice money saver.

[bicsintegra]

i will try this tomorrow and post how it goes........ i am assuming the 'igniton key cylinder' is the slot for the intelli key correct?

[bicsintegra]

thanks for all the help

[lanman_4]

I think i understand the steps required to do the reprogram but I have tried several times to get the fob in and out of the fob holder (in the dash) more than 6 times but cannot get the response from the car for the reprogram to begin (lights flash etc..). Is there anything special to get this to work? I get in the car and lock the doors, when I put the key in the holder the first time the steering column and seat move as if I were starting the car. Do you need to have your foot on the brake at all when doing the setup? I have one key that is fine and one that has just seemed to lose the connection for whatever reason. I changed the battey in the fob,, still doesn't work.


thx,
L

[maguzma]

I had an extra FOB and it did not work so I thought it was the batery. So I did what you said and it worked perfectly. However, a couple of minutes later it did not work again. So I went to my local Walmart and put in a new battery and it worked. Thanks for your help!

[lanman_4]

Maguzma, did you have any trouble getting the dead fob to be recognized for reprogramming? Any special instructions on how to get the fob to the point of this? I am not able to get the car to reset my dead fob. I will try another battery but not sure thats the problem.
Thx

[bicsintegra]

i will go and get new batteries today as the fob did not take the new programming either. hopefully it works.

[lanman_4]

bicsintegra, were you able to get the key to the point of reprogramming? (dash lights flash etc..)?
I have changed the battery in my second fob, didn't help. When I attempt to start the car with the key in my pocket (not in the key holder in the dash), I get a message of Key ID: NO

L

[Steiner2]

Do the batteries charge by being placed in the slot below the steering wheel - or do I need to replace the batteries in the FOB?

[loystock]

CR2025 is a lithium battery. Avoid leaving the fob in the slot, unless needed, as it will prematurely discharge the battery. While in the slot, the fob will keep on 'talking' to the car system .

[bicsintegra]

bicsintegra, were you able to get the key to the point of reprogramming? (dash lights flash etc..)?
I have changed the battery in my second fob, didn't help. When I attempt to start the car with the key in my pocket (not in the key holder in the dash), I get a message of Key ID: NO

L

no i was unable to program it but i am going to get the key this weekend.

[maguzma]

Once I got the new battery I put it in the slot and the light started to blink. So I followed the above steps and it worked. By the way, I found out the FOB was not the original but an Ebay model because the attached key was not the original. I am happy I did not have to buy a new one but I will eventually order a new FOB/Key.

[jmccarthy100]

Sorry - i'm from Canada and they think I am slow, eh. ;-)

I tried this on my '09 M35X - seem to have similar issue as lanman - inserting key in and out 6 times in 10 seconds - (but don't rush it...?)
I don't get the 2 flashes indicating it has reprogrammed - I have put in a 'new' battery (although it wasn't a Sony).

The steps mentioned above doesn't state it- but I have to assume - after you turn on ACC - you will need to remove the fob from the 'cylinder' in order to push any button on the remote- n'est pa?

Also - since this vehicle is an '09 - I was curious how long the life of these batteries usually last - or what else might have caused this fob to stop working - since our other fob works fine. Can it be from lack of use for a period of time? The only other change was my attempts to program the garage door.

The Infiniti dealer quoted me $10 for a fob battery -because - and I quote ' the CR2025 battery for it is specially made to a certain thickness' - (even though its a Sony OEM battery?) . I didn't ask what they charge to reprogram it but everything about the service for this vehicle seems to be a bit of a cash grab. I found it hard to believe that is a 'special' battery although I may go get a Sony and see if it makes any difference.

But seriously - $10 for a $1 battery - I can hardly wait till I need real service.

[The00Dustin]

The Infiniti dealer quoted me $10 for a fob battery -because - and I quote ' the CR2025 battery for it is specially made to a certain thickness' - (even though its a Sony OEM battery?) . I didn't ask what they charge to reprogram it but everything about the service for this vehicle seems to be a bit of a cash grab. I found it hard to believe that is a 'special' battery although I may go get a Sony and see if it makes any difference.

That special thickness is 2.5mm. The 20 is the diameter, which is 2cm (20mm). These are industry standard sizes, and any battery that says it replaces CR2025 (or anything 2025 or 2025 anything) is the same thickness and diameter. A battery designated as a 2032 would look the same but actually be .7mm thicker (and a 2011 would actually be 1.4mm thinner). The number is basically like an A or AA to the batteries you are more familiar with, and there is nothing special about the Sony, other than possibly the price. I figured out the size thing on my own after changing about 3 different button cell batteries in a row. I more recently learned the following from wikipedia:
Leading letter designations are as follows:
CR: Lithium
SR: Silver
LR: Alkaline
Trailing letter designations are as follows:
P: Potassium Hydroxide electrolyte
S: Sodium Hydroxide electrolyte
(No trailing letter): organic electrolyte
Additionally, CR is 3V while the SR and LR are 1.5V, so you probably need CR, though BR might be a longer life 3V, and might be better suited for use in our remotes, depending on how much power the fobs need to draw when active.

[Mr.1/4mileinstyle]

Yeppers! Please follow these instructions:

To reprogram (enter new ID) key fob (keyless remote controller) follow the steps.

1. Close all doors and lock all doors

2. Insert and remove the key from the ignition key cylinder more than six times within 10 seconds.
(The hazard warning lamp will then flash.)

NOTE:
Key should be withdrawn from ignition key cylinder completely each time.

NOTE:
Do not rush the insertion/removal key cycling process. The side marker/tail/license lamps and interior illumination will flash twice when this step is accurately completed.

3. Insert key on ignition key cylinder and turn ignition key switch to "AAC" position
At this time, the new ID code is entered and original (previous) ID codes are erase.

4. Press any button on the new remote controller once. (The hazard warning lamp will then flash)

NOTE:
Do not press the button more than one time in the above step. If the button is pressed more than one time, the programming procedure will not be successful. The side marker/tail/license lamps and interior illumination will flash twice when this step is accurately completed and programming is successful.

If there is only one remote controller skip step 5.

5. Additional ID code entry
Release the door lock, then lock again with door lock/unlock switch (In power window main switch)

6. Remove key from ignition

7. Unlock driver side door, open driver side door and then close the door. (END)

NOTE:
If you need to activate more than two additional new remote controllers, repeat the procedure on step 5 "Additional ID code entry" for each new remote controller.

NOTE:
Entry of maximum four ID codes is allowed and any attempt to enter more will be ignore.

2. Insert and remove the key from the ignition key cylinder more than six times within 10 seconds.
(The hazard warning lamp will then flash.)

? is the ignition key cylinder the hole that the FOB sits in on the dash?

confussed on this because the 06 M45 doe'snt have a key to start the car just a key to open a door.

Thanks for any clairafication

[Mr.1/4mileinstyle]

I was thinking step 2 was for a non m45 that had an actulle key since the OP had a M35. is this slot in the dash where the FOB is to be slide in an out 6 times w/in the ten seconds for step 2?

Thanks

[terrycs]

Intelligent keys like this one can ONLY be programmed (paired to the car) using a CONSULT PC system.



They can not be programmed by sticking them into the slot. That usually means a trip to the Nissan/Infiniti dealer unless one wants to drop a couple thousand for the CONSULT. Also .. every Ikey I've ever opened up had a CR2032 in it.

[djkoell]

I second the use of the CR2032 battery. I had a CR2025 in my intellikey that would not work. Battery measured 2.84V which I would think would be within spec for a working voltage. Swapped out with a new CR2032 and worked like a charm.

[The00Dustin]

I just changed one of mine again and I put in the CR2025 the manual recommends again. I have three that all came with CR2025 in them. Seeing as how a CR2032 is 28% (.7mm) thicker, I'm surprised it would fit. I didn't want to buy them and have them not fit, but based on other posts, it sounds like maybe a CR2032 would fit, and it would probably last longer if it fit.

[DS2009m35x]

I just replaced the battery with a CR2032 as that was what was in there and it works fine.