- I received a "service hybrid system" light while driving (it only appeared for a split second and went away) and I took it to the dealership for troubleshooting. The dealership found a stored code of B273C-00. They contacted their Jeep engineers who have not been forthcoming as to what the issue is, but said the vehicle is not safe to drive, so I am not allowed to have the vehicle back (the same dealership has a 2nd Grand Cherokee 4xe with the same issue). Both vehicles are currently at the dealership and should be available for inspection. From my online research it seems to be tied to the vehicle's crash sensor and high voltage cable harness. There are also numerous other owners in online forums discussing the same issue with their Jeeps (Grand Cherokees and Wranglers). -As Jeep engineers are not allowing myself or others to drive their vehicle with this code, they obviously consider it a safety issue. The scary thing to me is, that had I not happen to see that quick flash of the "service hybrid light" I would be driving this unsafe vehicle without knowing it, as it did not turn on the check engine light, so I had no idea there was a stored code until the dealer checked it out. That means there are probably thousands of folks driving around at risk without even know there is a safety issue. -This issue has apparently been going on for months, as the other Jeep at my dealership has there for months now.
2022 Jeep Grand Cherokee fuel system complaints
Page 3 of 3: complaints 41 to 43 of 43, newest first, as owners wrote them.
On May 4th, 2025, at approximately 10:50am I was traveling at approximately 65mph on a 6 lane highway when the vehicle lost all all propulsion. Following sequence of events took place on car: - Dashboard warning to service hybrid system flashed - Dashboard message to depress break and push button to start car. - Car lost power. Could not accelerate. Display and radio still worked. - Coasted across 2 lanes of traffic to side of the highway. - Car went into Park and Emergency brake engaged without my action. - Pushed start button and car started. On a busy highway, the vehicle would not accelerate resulting putting both my life and the lives of others on that highway at risk. I am now afraid to drive the vehicle. Vehicle has ALL service notice recalls completed. Vehicle taken to Jeep dealer for service. At dealer for 48 hours now. Dealer does not know how to fix vehicle. Dealer stated they have 4 other vehicles with the same exact problem. Dealer stated Jeep does not have a fix. No ETA for fixed car given.
Once a week or so, the vehicle will experience motive power loss while driving. Typically, it's for 3 or 4 seconds and is accompanied by a blinking red "Service Hybrid Electric Vehicle System" warning light on the dashboard. This is very dangerous because for those 3 or 4 seconds, the vehicle will not accelerate/maintain speed. I've had the vehicle at the dealership for the same reason multiple times. The dealership has tried to identify the root cause but so far has not been successful.
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