if i replace the lock cylinder will i need new key? on 2001 Pontiac Grand Prix

i had what i thought was the ignition switch replaced on my Pontiac grand prix gtp 2001. i am still having same problems. i am now being told that what i had replaced was the lock cylinder if that is in fact true wouldn't i have received new key?

Asked by for the 2001 Pontiac Grand Prix
A locksmith may be able to re-key the lock for you so that the ignition key is the same as door and trunk. Newer VW you can order an ignition lock with a "matching key" but it takes them a ridicules amount of time.
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you should have a new key with the cylinder.