What's the max # of key fobs and ignition keys you can program for an 08 H2? I was thinking of getting a 2nd and 3rd backup set.

 

As far as I can ascertain from the GM Service Manual there is no limit.

If using the Scan Tool (Tech2) the manual suggests additional fobs can be added, the manual method suggests all fobs have to be done at the same time.

Short answer, no limit.

 

Unlimited, yet only 2 can be personalized.

 

Personalized? Can you elaborate? Thanks!

 

first programmed fob will be [driver 1] the next fob will in turn be [driver 2]. it will not show a driver 3 or 4

 

Also to add.. the two personalized ones can remember personal settings like seat and mirror positions.