Yes, it's true, most of the recall work that we have done on our beloved GTP's is being done via shortcut! One example is I recently got a recall notice in the mail for 07035 engine compartment fire. Well, this translates into the dealer of your choice having to do a complete valve cover gasket replacement. However, this is not what MOST dealers are doing. Most of them are simply building a cheap aftermarket "shield". This makes no sense to me because they are being paid for parts & labor 100% from GM!
Having said that, let me tell u some things about the mechanics world that u probably already knew but never had confirmation. I was married to a mechanic for 8 yrs. whenever warranty or recall work comes in the mechanics are HIGHLY pressured to do "suggestive selling", try their hardest to find something, anything else wrong with your car so they can sell u 150% marked up parts & $74/hour labor of which the machanic only receives 8-$11/hr plus around 20% commission.
Back to my recall. I live in NC & in the entire piedmont/triad area which is around 7 cities & a few towns in the CPU try, 5 counties. In all of this area there was only 1 dealership that actually REPLACED WITH A BRAND NEW valve cover gasket & didn't try to build some cheap shield around it instead. Also, they never once tried to sell me any additional work. I feel that these other dealers should be punished by GM for fraud & embezzling the money & made to correct every GTP they have shamed!!