Can you drive without the FOB once car is started? - Dodge Challenger Forum: Challenger & SRT8 Forums
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#1 (permalink) Old 01-21-2011, 09:35 AM
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Can you drive without the FOB once car is started?

My wifes Jeep Patriot has remote start, so i start the car and to enter I have to unlock the car, put the key in the ignition and turn the key to get the car out of park, other wise the car wont move.

Now I have a 2010 challenger with a 6 speed, while i know I cant remote start it. Every morning in the winter i have the fob in my pocket go out to the car and start it, then go in the house for 10-15 minutes while it warms up.

Question, if I left the fob in the house could i drive the car since its already started, and if so, how far? Would the car shut down since the fob is not detected?

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#2 (permalink) Old 01-21-2011, 09:41 AM
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If I remember correct this actually happened to a member and when he turned the car off he was stranded...

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#3 (permalink) Old 01-21-2011, 10:05 AM
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I believe you can drive it as far as you can go but once you turn it off, that's it.

On the new 2011's, I believe the key fob will have the ability to kill the engine. So, if you're warming up your car or getting gas and someone hops in and begins driving away, you can kill the engine to stop him.

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#4 (permalink) Old 01-21-2011, 10:26 AM
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I don't know exactly how the Challenger key system works buy my SRT-4 has a transponder key. If I go out and warm up the car it won't let me lock the car manually but I can lock the doors if I take the FOB and use it to lock the doors. The FOB does not have any smarts, just the transponder key. I can go and open the car with the FOB and leave it home as long as the receiver can read the transponder key all is well. In other words I don't need the FOB just the Key.

If someone tries to steal the car with just a harware key the car will shut down after 2 seconds. You have to go to a dealer with the key codes or VIN # to get a new transponder key made.
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#5 (permalink) Old 01-21-2011, 10:39 AM
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I know if you remote start it the engine shuts off in 10 min. and when the FOB isn't in between the doors warning comes up that the FOB isn't there (something like that) and I've heard that that starts a timer and the engine would shut off but have never tried it.

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#6 (permalink) Old 01-21-2011, 10:46 AM
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I've sat in my 6-speed SRT and started it up, then took the key in the house while the car warmed up for about 5 minutes. It never shut off.


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#7 (permalink) Old 01-21-2011, 10:50 AM
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Originally Posted by SpudRacer View Post
I've sat in my 6-speed SRT and started it up, then took the key in the house while the car warmed up for about 5 minutes. It never shut off.
I would think they would use the same timer as the remote start and that's 10 min. but never tried it and my cars not here right now to find out.
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#8 (permalink) Old 01-21-2011, 11:04 AM
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I set at my breakfast table enjoying a last cup of coffee. Remote start the car in my garage,remote opening the garage door, to let the exhaust out while car is warming, go shave dress and ready to go to work. The car is warmed up and ready to take me. You gotta love it.
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#9 (permalink) Old 01-21-2011, 11:06 AM
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Last summer I started my car drove it without the FOB for a few hours (never turning it off) and never had an issue.
If you are driving around without the FOB and you shut it down you will never get it re-started without that FOB.
There was never a "timed out" to shut it down.

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#10 (permalink) Old 01-21-2011, 11:07 AM
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The car will run until you turn it off. They do that so you won't crash if your fob battery dies on you. I guess they don't want the car to shut down on the highway at 70.

Of course you have a 50% chance that it died on your way *to* somewhere versus on your way home, so you'd still be stuck, but not (potentially and legally) dead.

BTW, this is an interesting article on how some researchers took advantage of that fact...

How Hackers Can Use Smart Keys To Steal Cars

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