I lost my extra key to my 2009 chevy impala. I purchased a blank on ebay and had it cut. The key will unlock the door but will not switch on the ignition. It will go into the switch but will not turn.

To be clear, you still have one key which works? From which the new copy was made?

Doug

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Yes I used a working key that came with the car.

 

I would get a new key cut. I'm thinking you got a bad cut when the last key was made. The door locks use fewer of the teeth on the key, so that's why the key works in the door, but won't turn the ignition. The bad tooth isn't being tested by the door lock.

As for there being a chip in the key, I can't say. But it should turn the ignition cylinder. If the car is expecting a chip and you don't have it, the key should still turn, I think, but the motor won't crank.

I know on the gen7's, there was no chip in the key. But I'm not sure about your gen8.

Doug

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are you sure the key you bought has a chip in it? i went to ace hardware and had a key cut to just open the doors but it didn't have a chip in it.

 

This is the key I purchased:


New Replacement Car Key Transponder Chip 46 Circle Plus for Impala Silverado



Order status: Paid Paid $5.50 with PAYPAL on Oct 27, 2016 10:57 PDT Estimated delivery: Wed. Nov. 2

 

Have the cut checked by whoever cut it. Any good key cutting shop such as ACE Hardware will recheck it for proper cut.

Sent from my SM-G900V using Tapatalk

 

Other thing is check seller feedback of seller on eBay. May be a no good knock off part. Most key places have a deal you can wave your key in front of and it'll tell you if you have a chip key of not. If it turns out the case they sold you the wrong one and don't want to make it right then report it to eBay.

Sent from my SM-G900V using Tapatalk

 

A "chipped" RFID key will have a circle with a cross stamped on the shank below the
head.
(note the pic in post 6)

If it doesn't have that stamp/imprint its NOT a "chipped" key !

If the key is NOT turning in the lock then its because it was cut wrong!

 

Different key issue

Greetings, I'm new here. I don't want to hijack the thread, but I have a copied key that will work in the ignition, but not the door lock. This was copied from a key that works in both. Suggestions?

Oh, Mine's a 2011 LT

 

Greetings, I'm new here. I don't want to hijack the thread, but I have a copied key that will work in the ignition, but not the door lock. This was copied from a key that works in both. Suggestions?

Oh, Mine's a 2011 LT

Try turning the key over and see if that helps. You probably have one tooth cut a tad off that's causing the problem.

Both the ignition cylinder and the door lock only use one side of the key, so it may work in one orientation and not the other, in both the door and the ignition.

The two locks do not necessarily use the same teeth, either. So the bad tooth may only be affecting one lock and not the other, altho I would expect the ignition to fail before the door lock since the ignition uses more of the teeth than the door lock does.

Also, since it gets used more, the ignition may be more worn than the door lock and hence more tolerant of a bad tooth. My 1997 F150 ignition cylinder is so worn, I can just about start it with a screw driver

If none of this helps, try getting another key cut from the original good key, if you still have it.


HTH.

Doug

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You don't need to buy circle plus transponder keys online. These aren't sidewinder keys.
Any real old fashioned hardware store that cuts keys will usually have Circle Plus blanks. I believe some of the Borg big box retailers have em. I bought a spare key at Rands hardware in Plymouth. I had to do a security learn but that's not the end of the world.
If you want GM or the Chevy Bowtie or the Pontiac symbol or the Cadillac symbol or the Buick symbol then buy em online.

 

^+1 with Doug! Very common for door locks to seize up due to lack of use. Everyone always uses their fob, power lock/unlock buttons or external keypad instead of the 'ol key-in-the-door-hatch-trunk method. Fwiw, I've had locksmiths tell me to shy away from graphite, liquid or powder, to free up locks. They claim it'll eventually gunk them up and make matters worse. Wd-40 is their go-to for cleaning/unbinding locks.

 

WD-40 to un-bind and rinse the garbage out.

WURTH HHS to lube em so it doesn't happen again.

 

If it's not working then why don't you go on replacing the key. Replacement is the permanent solution and even you can replace it by hiring a locksmith.

 

You don't have to buy key blanks online for these cars. The B bodes aren't even Circle Plus keys.
Drive to your local hardware store and have a key cut. Ace etc will have blanks. GM used millions of them.
When the kid behind the counter cuts you a key that turns the ignition you have a spare ignition key.

 

Thanks, you suggested the right way to get new keys. I will call locksmith to have a key cut.