The new "security" patch sets code needed to start the car.
There is also a code needed, to disable vallet mode, on all 2015+ Hellcats.
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You are correct - and I was confused about how this works so thank you for your reply. I should have done more homework before posting. Even my service manager was unsure last week of all the upgrade details and operating ramifications. If what follows is old news on the forum, well, I didn't find it doing a word search.
I found this article link below from August, 2021, about the 3 different things the free security upgrade does. Here is the lead in paragraph...
"Dodge has developed three new security measures to help protect owners from having their vehicles stolen by thieves. This includes the Enhanced Security Mode, Key Programming Lockdown and the Intrusion Module."
https://www.dodgegarage.com/news/ar...nces-three-new-theft-protection-measures.html
The article seems to imply that car owners can choose to have just the Enhanced Security Mode upgrade, and not the Key Programming Lockdown upgrade, or vice versa. Does anyone know for sure about this? I'll pick my service manager's brain on June 3rd when I get both done. Of note, statistically in the grand picture of car theft in America, the article points out our cars are unlikely to be stolen on any given day. But then again, it was written almost a year ago...
Only the last facet of the upgrade - the Intrusion Module - which senses window breakage, and/or noises from inside the car, and tilt sensing in case of a towing attempt, all of which will trigger the existing car alarm, isn't available for pre-2022 model year cars.
I also found a YouTube video showing how the Enhanced Security Mode of this free security upgrade alters our current Valet Mode into an enduring (unless changed back by dealer with another reflash) driver option, which when arming it each time we shut down the engine, turns it into a completely different Valet Mode. It's more accurate to say Valet Mode no more. If you want to you can arm "Valet Mode" (really not a Valet Mode anymore - does the menu do away with Valet Mode terminology?) by inputting on UConnect any four digit code that would then require - after the next engine start - inputting the same four digit code to enable the engine to develop more than 2.8 HP at idle RPM. Thieves can still steal our fob codes with repeaters or scanners, or break into the car and use that damnable device which they jack into the OBD port, to start the engine. But without our code being subsequently input on UConnect they are stuck with an engine that won't rev above idle. Flooring it without the code just makes the engine cut out and stutter. This is true for anyone legitimately using our key fobs too. No code, no go (very far, very fast). If you're one not to bother keeping your key fobs in a faraday pouch and someone steals the fob code, and you haven't enabled this Enhanced Security Mode prior to engine shutdown, or done something else in the anti-theft department like pull the fuel pump circuit breaker, a thief could normally drive off with your car.
There are pros and cons to getting these upgrades, but on balance I will have more peace of mind by upgrading. In the con category, if you need to get away fast after jumping into a shut down car after enabling the new Valet Mode requiring code input you'll be frustrated (possibly endangered) by having to start the engine and then wait for the UConnect pages to load so you can punch in the code. Speaking here a little tongue in cheek, should the code entry delay force you to shoot a parking lot attacker instead of driving away your response to a prosecuting attorney (at your trial for manslaughter - it's California) would be you could not retreat. On the pro side this 30 second or do delay is a forced short engine warmup wait. However, it is always optional to arm a reconfigured "Valet Mode" - the car will start and run normally if you don't want to set it up prior to shutting down the engine. Ooops, now the prosecuting attorney will drill you about why you didn't choose not to arm the code entry for a faster getaway that would not have ended up with you shooting the attacker - you knowing, surely, that it is YOUR responsibility in California to prevent crime, not the criminally-minded. But, I digress...
Another con, for those of you who use Valet Mode, is you lose the current Valet Mode. You can't arm it and then hand the car over to the valet - unless you tell him or her the code so they can bring the car back at faster than idle speed (if there are no hills - 3 HP and idle probably not going to drive our cars up much of a hill). So for all practical purposes the current Valet Mode is gone. If you arm it and give the code to the valet you're enabling a possible "Ferris Bueller's Day Off" joy riding, hill-jumping nightmare.
However, the good news according to the article, is Enhanced Security Mode facet of the software upgrade can be reversed by the dealership if you decide you don't want four digit "secondary authentication" which ensures the operator of your car is an authorized driver. Or, perhaps, after getting the upgrade you decide to let your 16 year old drive your high HP car and prefer them restricted to the current Valet Mode - limited to 70 mph I read - but somebody also said the engine still capable of pretty fast acceleration. But again, even though these first two facets of the security upgrade were rolled out sequentially months apart I don't know if they are individually selectable. Anyone? Bueller?
Not so with the Key Programming Lockdown part of the upgrade. That's the permanent change where losing key fobs becomes more expensive than just buying a replacement fob.
I hope this helps. If my service manager has more to add next week I'll pass it along in this thread.
Finface