Just bought 2005 Aveo and it came with 2 chip keys. One key works fine but the second key only works to lock/unlock doors and not in ignition. It turns in ignition but engine won't turn over. Is it a programming thing or security thing>>>>anything we can do to avoid an expensive trip to the dealership?
Assuming the 2005 model year stil uses viper security systems...the chip in the key carries a magnetic resistance frequency. if the chip is damaged or corroded the frequency will change and wont engage the igntion. you can either get another key made (about 75 dollars) or bypass the ignition lockout feature.
how do you bypass the ignition lockout feature??
you'll have to get a wiring diagram of the ignition switch to see which wire is for the relay. and with a ohm meter determine the resistance of your key (usually 30 or 50 ohms) radio shack should carry the proper resistor. simply cut the wire going into and out of the ignition switch that corresponds to the security system and tie in the resistor. after that reassemble and drive.
disclaimer: if you do this it will be possible to hot wire the car making it easier to steal.
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SOURCE: key lock ignition won't turn. Does it have to do
Programming won't effect if it turns or not.
The most common problem is when there is feedback pressure from the tire against a curb, up hill, etc., and that causes the steering lock to bind the key cylinder. The solution for that is to try pushing both ways on the steering wheel, as you try to turn the key, to relieve the pressure.
The second most common is wear on the key, so it helps to jiggle the key side to side, up and down, etc. as you try to turn it.
Try turning the key upside down, using the spare, etc.
As an act of desperation, you could try putting the key in, and gently tapping on it with a piece of wood or the handle of a hammer. They are beginning to make ignition locks with tumblers spring operated, at right angles to the key, and they are very easily bound up by friction, because the springs are so small and weak. This was a very common problem with the Ford Focus, and I believe Dodge picked up the same bad design.
SOURCE: 1995 BMW 525i. Car will not start or turn over.
I had the same problem, after having the car towed to four Seasons, it was discovered that the electrical portion of the ignition switch was defective. Works like a charm. Part number 61 32 8 356 026 Hope this will help.
SOURCE: ignition key won't turn
Sometimes it is the key. On certain vehicles the key has a small chip in it and over time these do get worn out. I would have a locksmith or the dealer cut you another key but please go to a reputable locksmith or dealer. I hope this works for you (it should). If not put another post and I can probably walk you through replacing the cylinder unless you feel more comfortable having a mechanic do it and paying him/her lots of money. Good luck
SOURCE: lexus rx330 electronic computerized key broke off. chip is ok
I got key shell for cheap on e-bay, replaced the chip from broken shell and locksmith cut me the key from original. Works great for total around $35
SOURCE: Aztek won't start,key locked in ignition, service engine light on
It is the security chips in the keys. Has this car been wrecked? Was this car made in Mexico? GM had the bright Idea of creating a security system that would do exactly this, I know on cars made in Mexico (like the HHR) You can reset the power and get the key back out, but vehicle will have to be reprogrammed with the master key. This involves turning the key from off to run position without ever going past run (i.e. start position) leave key in this position for 30 minutes. Turn key back to off for 30 seconds then back to run for 30 minutes. repeat this step three times. the last time, after 3rd 30 minute period, turn key off for 30 seconds and then try to crank. Please note this only works if the original master key is being used. You can then reprogram the second key following a similar sequence, only master key that is working has to be inserted to let alarm system know that vehicle is not being stolen only that you are trying to reprogram a key. If original master key is not being used then vehicle has to be taken to the GM dealership to program keys and possible key module replacement.
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