What 358 owners told NHTSA about the 2022 Jeep Grand Cherokee Trackhawk

Fuel gauge incorrectly shows to be full (with no change in range) until about 4 gallons (~80-90 miles) has been used. After that the fuel gauge begins to register and the Range begins moving down. After several attempts to get the issue fixed, I finally had a service manager admit it is an issue with all Cherokee & Wrangler 4xe models. I then did an internet search and discovered it is a well known issue.

NHTSA ODI 11563416

RE: 2022 Jeep Grand Cherokee 4Xe (hybrid) This complaint involves a well-known defect and malfunction endemic to the Jeep Wrangler 4Xe with the identical powertrain and software, and a well-documented recall of the Jeep Wrangler, but for some reason, does not yet extend to the Grand Cherokee 4Xe model for identical symptoms and malfunction behavior. The associated recall for the Wrangler is NHTSA campaign number: 22V865000. FCA US, LLC’s number for this recall ZB7, however the Grand Cherokee with the identical powertrain-- has yet to be recalled, however has the same defective issues. This is brand new off-the-showroom 2022 Grand Cherokee 4Xe, and the malfunctioning behavior began within the first 10 days-- at 179 miles (3/4 tank of fuel), with the vehicle going into the FORM (Fuel/Oil Refresh Mode), depriving the vehicle of electric mode or electric assist. The vehicle message stated: "Electric Mode Temporarily Unavailable - Fuel & Oil Refresh in Progress" Other dangerous symptoms and malfunctions associated with the defective/malfunctioning software have occurred: (a) A single instance of a "limp-home" mode (25 mph max on a main thoroughfare), and; (b) several instances of failure of the transmission to shift into a higher gear-- causing the engine to over-rev (over max redline RPM) to maintain a highway speed). At 331 miles, the vehicle was refueled for the first time, and the FORM warning message disappeared with the fresh refuel, however the vehicle hasn't been driven enough to determine of the transmission issues were resolved with the refuel. Nonetheless, the FORM was a malfunction that occurred at 3/4 tank with only 179 miles on the vehicle, and the other malfunctions are presumed to be associated with the primary defect. The video of the "shift malfunction" incidents can be viewed on Google photos: https://photos.app.goo.gl/EMqaZ5ZotkVgu6UJ7 and https://photos.app.goo.gl/LYPytX73fzj9JRq3A

NHTSA ODI 11516050