2003 Yukon ignition problems

Colin Harris

Asked by Aug 22, 2016 at 04:43 PM about the 2003 GMC Yukon

Question type: Maintenance & Repair

I drove my 2003 GMC Yukon to the store which
was about 4 miles away came back to the
house and backed in the driveway turned the
key off . went back to start it up again about an
hour later at first it acted like it was trying to
start I turned the key off turned it back on again
sometimes it will try to start and sometimes it
does nothing it shows as if the security is still
engaged because it shows the lock symbol
flashing and then it goes off sometimes it just
goes off but it never shows the unlock security
system when I turn the ignition now it will not
start and I noticed a couple of weeks ago that
the key felt weird going inside the cylinder it did
it a couple of times and then stopped. And
when I stop at a stop light stop sign if I turn my
left blinker on my brights come on not sure if
this is all one problem or a few problems help
me please ?????

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