The CM2000 Corrosion Module which cost around $2,000 was installed on it by the "Authorized Dealer" Dilawri Chrysler Hunt Club in Ottawa, ON when it was still brand new.
Your problem here is twofold.
Firstly, Shiv Dilawri, his brother Kay and anyone related to them are a gang of schysters! Do a quick Google search on these guys, apart from a couple of "fluff" articles from the media and the BBB, complaints galore! I could spend hours telling stories of the stuff they pulled when I was a rep in Ottawa. Hell even their father & uncles were involved in very questionable bankruptcy back in the 80's where massive amounts of cash & assets were flipped to friends and family members before hanging banks out to dry. Can't remember if anyone was ever found guilty of any misdoings. If you plan on purchasing a vehicle in Ottawa, avoid the Dilawri's (i.e. Bank Street anything, Ottawa Honda, KayDee Motors, etc.) like the plague.
Secondly, but most importantly NEVER, EVER BUY RUSTPROOFING PACKAGES OR DEVICES FROM DEALERSHIPS. Take it from a guy who was in dealerships as a salesman, leasing, F&I and sales manager and made a lot of money from them. They don't work. Dealerships make obscene margin on them, especially packages applied in house. All new cars are light years ahead of where they used to be on rust issues. If you must, get your car Krowned every year. It's economical and it works, period.
Your so-called warranty, likely worthless. Most of them have re-sale exclusion clauses, i.e. the warranty only applies to the purchasor of said warranty or inspection requirements that nobody ever does. I hope you didn't pay your friend any more money for the vehicle because of the device or it's professed warranty. Cars with rustproofing packages are worth no more than one without, trade/sale values are all about overall condition.
This is the service that Hyundai uses:
http://www.firstcanadian.ca/chemical.htm#
They also have a 'guarantee'. As noted by the OP, this might not be worth much but it gives you some grounds for dispute if rust does appear.
Totally incorrect. No automotive manufacturer in any way, shape or form endorses ANY aftermarket products. Dealers sell extended warranties, rustproofing, paint protection, stain guards, undercoating, insurance, nitrogen packages, etching etc because the profit margins are obscene. NO OTHER REASON!
Back when Hyundai's didn't come with radio's, it was preferable to install aftermarket units because they were far cheaper and better quality than what Hyundai offered. We had a local radio shop make up a nice display with a few options for customers in company colours and a Hyundai logo on it, both the DSM and the DPSM from Hyundai Canada freaked when they saw it. They had no control over us putting in aftermarket units instead of factory ones but the display had to be repainted and logos removed.
AND... one more thing based on this (hence my edit):
The warranty states, rust would be repaired if:
1. Sheet Metal corrosion damage as defined under the vehicle's manufacturer's new vehicle warranty, or
2. Rust perforation (home) from the outside in, even if the corrosion damage was originally caused by stone chips and scratches on the doors, quarter panels, rocker panels, wheel wells, hood lid, trunk lid, roof and floor boards.
Well, I got two quotes from reputable body shops and they both said this rust is considered preforation even it did not actually become a hole.
Doesn't matter what the body shop says, they aren't the ones paying.
New car rust warranties rarely account for surface rust. Quite litterally there has to be a hole before they will do anything. I also love how it's worded. Outside in coverage only, and no coverage other than what has already been defined by the manufacturer (Chrysler - 3 years???), the difference being time and if there is a company around long enough when it's time for a claim.
In conclusion it's a $2000 box that does nothing with a good for nothing warranty. The box probably has a couple of relays, a transformer and an LED light made in China for 5 bucks. Shiv Dilawri made off with your friend's shirt, their pants and 5 pairs of underwear from next week on that one. I repeat, I hope you didn't pay your friend any more money for the vehicle because of the device or it's professed warranty.