Are there any ways to unlock car doors and get car stated without the key fob? Could use use key at trunk area? Can OnStar unlock car and get car started if you lost key fob?
You can use the manual key to open the hatch if the fob fails or is missing. You cannot start the car without a valid fob. OnStar can open the door, but it can't start the car either. Lose the fob, you walk.
The car uses a challenge response system that can't be hotwired around. The computer simply won't pulse the fuel injectors or fire the spark if the challenge isn't successfully answered by a fob that's been registered to the car. So, if you lose the fob, you walk until you get a replacement programmed (a training sequence you or your dealer can do if you have the manual key, lose the key too and the dealer will have to first cut you a new one of those before training in a new fob).
Of course GM gives you 2 fobs with the car, so you'd have to lose them both before you'd be totally screwed. But the best thing to do is never take the fob out of your pocket. That way you won't lose it, have it stolen, or lock it inside the car. Simple really, fob goes in pocket, fob stays in pocket, fob never lost or locked in car.
As mentioned, The key can unlock the hatch and pulling the cable can unlatch the door. Also, OnStar can also unlock the door as long as the car has power. The fob can be used to start the car and if the fob battery is dead, it can be inserted in the glovebox slot to start the car. I am not aware of any other way to start the car.
How Do You Keep The Car From Reconizing The Third Fob If It Is Hidden On The Car? Won't The Car Start For Anyone If The Fob Is In A Certain Range Of The Car?
Put it in the cubby in the back is one way. The antennae for recognizing the fob for starting are in the front, around the driver station, as I recall. You can also remove the battery. You can still start the car with a battery-less fob by inserting it into the slot in the glove box.
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