The auto stop start for Your Jeep Grand Cherokee may not be working because it has been disactivated. Not all models allow this but it should be a feature on Your Grand Cherokee depending on which year You have. If You are certain that the mode is activated but not working it could be a variety of issues including problems with Your transmission. If You have access to a scanner tool it would be a good idea to use it try and narrow down exactly what the problem may be.
Steven R
July 30, 2020
The most common cause for your Jeep Grand Cherokee auto start stop to not work is the outside temperature is too high or too low.
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