This is 100% not true. The Magnuson-Moss Warranty act states it's illegal to deny warranty repairs if the vehicle was serviced elsewhere - including serviced by the owner.
The manufacturer can deny warranty repairs if they can show routine maintenance was not performed to a vehicle system that has failed or in question... However, it is not required for the dealer to perform the service and they can not simply deny warranty coverage based on who performs the service
Also, I didn't see the original comment - but "lifetime warranties" are basically a marketing tool. I'm wasn't aware Chrysler offerers such (maybe they did in the past). But, to put it bluntly, you don't see vehicle manufacturers that are consistently rated top quality offering such things. Chrysler has one of the worse reputations for quality over the years in the automotive industry.
And I never understand why someone would make their purchasing decision on an item like this solely based on warranty. You are going to use the tool (guaranteed), but it's VERY unlikely you will ever use the warranty. So, to me, I'm buying based on what I KNOW I'm using (the tool).
Rupes invented & continues to pioneer long through DA polishers. They are a great company and have brought many innovative products to the market that are consistently viewed as best in their class. The have a USA manufacturing facility and multiple experienced detailers as reps for their products. I may be dense (yup - prolly am) - but I can't see how someone wouldn't choose them based on all the above.
Worked 7 years as an ASE certified tech.
You are correct, the work does not have to be done at that dealership but you have to prove with records or receipts that service has been done. And it gets ugly when repairs are needed and fingers are being pointed.
I dont remember myself about the lifetime thing, maybe it was lifetime powertrain or something like that. Someone just mentioned it in another post but couldn't find it again.
But back to the warranty thing since you are an ASE tech ill use tools as an analogy lol.
A weekend wrench like me will buy the cheaper craftsman tools, i know i can beat the crap out of it and if it breaks. I walk into Sears to get a new one replaced no questions asked.
You sir do it for a living so you need high quality tools with more precision, Im guessing maybe SnapOn or Mac tools. prob more brands but i dont know them too well.
End of the day we accomplished the same thing whether its changing the oil, brakes, etc. Of course you would be done 4x quicker and all bolts torque to exact specifics.
I get that the warranty is a marketing tool, but it fits into the buying segment that im in. I want a cheaper tool that works just as good and not have to worry if a part fails. I dont detail anywhere enough to get the latest and greatest.