Plug-in hybrid versions of the Grand Cherokee and Wrangler may have been built with sand in their engines.

This manufacturing issue could potentially lead to catastrophic engine failures, posing serious risks to vehicle performance and safety.

Owners of these models are advised to stay informed and consult with authorized dealers to address any concerns regarding their vehicles.
https://www.caranddriver.com/news/a69440729/jeep-grand-cherokee-wrangler-4xe-engine-sand-recall/