This may work:
turn key on. Leave on for 10 minutes. Turn key iff. Turn back on. Wait until security light goes off. Then start car.
I have the same problem w/ my. 2008 Chevy impala right now but no security lights on at all and my fob won't work either . this happened directly after jump starting someone else's car .& I've tried hooking up a battery charger & nothing please help
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SOURCE: fob will not unlock/lock doors 2007 dodge ram,
fob broken or bad, or fob battery bad, key problem not reading key code
SOURCE: A 2008 Chevrolet Equinox that is dead
It sounds like a dead battery or battery connections. The keys won't come out, because there is a positive feed wire to the lock cylinder that will not allow it to turn the lock position when there is no power.
SOURCE: I replaced the ignition in my 04 chevy Impala and
You have to have the key coded with the ignition switch at a lock smith,or the dealer.
SOURCE: ignition switch 2001 chevrolet impala
YOU NEED A HAYNES REPAIR MANUAL WITH PHOTOS TO SHOW YOU HOW TO REMOVE STEERING WHEEL AND DISABLE AIRBAGS.YOUR IGNITION SWITCH IS IN THE STEERING COLUMN.
SOURCE: why did the security light come on in my 2003
That indicates there is a pass-code error. There are a few reasons why. Easiest way to explain it, is that your key has a "chip" in it, with a resistance or "password" that your cars computer is looking for. It means that your cars computer did not see the right password. It will probably reset itself once it sees the correct password a few times. If not, you want to get it checked, because if it happens too often, the vehicle will not start.
The causes for this problem on these vehicles are generally the ignition switch or passlock sensor. There is also sometimes a water leak that occurs at the right front cowl, check the inside passenger side floor area, if it is wet. It could then be a BCM problem. Goodluck
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