what the hell is a sure grip

Not just Mopars. Some time back bought a 98 Ranger, seller told me the alarm was intermittent and not to use it.

I went to the Ferd dealer to find out how much to do a full on readout of the computer to look for errors

Service manager informed me "that is not a Ford alarm."

I informed him I've read the service manual and that it IS a Ford alarm.

Told me "he'd been service manager for XX years and bla bla bla"

Long story short, he ended up in the cab, alarm engaged, looking at the indicator FACTORY INSTALLED in the cluster "I'll be darned, it's a Ford alarm!!!"