Transmission seems a little rough 48,000 mi. 2017 300s
You didn’t ask a question but I’ll give you an answer.
The car has at least a 5 year 50K mile powertrain warranty. Use it. Take it to your dealer. Tell them about your problem. Ask them if your car is covered.
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All transmissions are computer controlled so there may be software updates they can do if it’s still under warranty .
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