"hotelcorporatecodes.com places Fiat Chrysler (now Stellantis) in the "Sometimes" verification tier. A live booking test confirmed the code resolves to approximately 7% savings. The code's rebrand from FCA to Stellantis means two overlapping codes circulate publicly, slightly elevating hotel-side suspicion. FlyerTalk's general Hilton thread notes that automotive OEM corporate codes are moderately checked in Detroit-area properties where staff know the company well enough to ask."

"My point is only that this does happen and it can be problematic for those that work for a company that has great negotiated rates and the provider requires identification."

"I called the hotel and spoke with someone who was adamant that I had booked a Government On Business rate and would need to show Government ID. I explained that there was a difference between having access to a Corp code which allowed access to HM UK Government rates (which I have done regularly for 15 years) and booking an OnBusiness Government rate directly by clicking the box on Hilton.com (which I have never done). She wasn't moving and insisted this was the same thing."