Car Alarms: keyless entry or car alarm, keyless entry system, gmc sierra

Question
I bought a used 2000 gmc sierra k1500 and was wondering if there was a way to tell if it has an alarm or a keyless entry system.

Answer
Likely. It had the option at the dealer for keyless,
and does have 2 seperate security systems in it
from the factory.

One is a simple noise making and head light flashing
deterent. One is PASSLOCK II fuel injection cut off
system. So yes again, likely.

It does have power doors so adding keyless to this
truck is easy.

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