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There is a recall, U44, that states some 2018 Trackhawks have faulty FOBs that prevent reaching full engine potential. Your experience with this would be appreciated.
We are recommending the following improvements be performed on certain 2018 Model Year Jeep®Grand Cherokee Trackhawk vehicles equipped with a 6.2L Supercharged Engine The key fobs
/FOBIK (Frequency Operated Button with Integrated Key)
on your vehicle may have been built with the incorrect electrical circuit board.
This issue can prevent your engine from performing to its maximum designed potential.
We are recommending the following improvements be performed on certain 2018 Model Year Jeep®Grand Cherokee Trackhawk vehicles equipped with a 6.2L Supercharged Engine The key fobs
/FOBIK (Frequency Operated Button with Integrated Key)
on your vehicle may have been built with the incorrect electrical circuit board.
This issue can prevent your engine from performing to its maximum designed potential.