Not going to say it wont be difficult but not impossible obviously
You may need to be prepared to either spend some $$ to have the cars towed to the dealer once repaired
OR
spend significantly more $$ in order to obtain what is necessary in terms of a suitable scan tool and subscriptions to GM Web based software.
A thread that would give you some idea what I am talking about could be found here:
http://gm-volt.com/forum/showthread...le-Integration-Control&highlight=secured+DTCs
Welcome to gm-volt.com
WopOnTour
You may need to be prepared to either spend some $$ to have the cars towed to the dealer once repaired
OR
spend significantly more $$ in order to obtain what is necessary in terms of a suitable scan tool and subscriptions to GM Web based software.
A thread that would give you some idea what I am talking about could be found here:
http://gm-volt.com/forum/showthread...le-Integration-Control&highlight=secured+DTCs
Welcome to gm-volt.com
WopOnTour