Two problems related to engine exhaust system have been reported for the 2015 Jeep Grand Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Jeep Grand Cherokee based on all problems reported for the 2015 Grand Cherokee.
Ever since the fca ecodiesel exhaust emissions update, my vehicle has had terrible turbo-lag. When you step on the accelerator, especially after a cold start it can take up to 4 seconds to actually move forward. I already reported this once before, but this vehicle is a serious hazard. Trying to cross any type of traffic is dangerous. It also has anywhere from 3-4mpg drop since the update.
Since I had the exhaust emissions update done, my Jeep has an extremely long lag in acceleration. It takes a good 2-3 seconds after stepping on the throttle, before the car moves forward. I was almost hit head on in traffic on a highway because of the timing of not accelerating properly. This was never an issue before the exhaust update.