2018 Jeep Grand Cherokee Trackhawk electrical system problems

“My 2018 Jeep Grand Cherokee Overland is experiencing serious electrical malfunctions related to the Uconnect radio head unit. This component appears to control or influence multiple vehicle systems beyond just audio, including climate control, backup camera, navigation, and possibly driver assistance features. The system malfunctions frequently and erratically — settings change on their own, the screen goes black or freezes, and controls become unresponsive while driving. These distractions create a serious safety hazard, as I am forced to take my attention off the road to regain control of basic functions like defrost or audio volume. I have discovered that this issue is widely reported by thousands of Jeep owners from this model year and earlier, particularly those with Uconnect systems. Jeep has refused to address or recall the problem despite it clearly impacting driving safety and vehicle usability. This malfunction significantly impairs my ability to operate the vehicle safely. I respectfully request that NHTSA investigate this issue as a potential safety defect. I have taken my car to the dealership and was advised that the whole radio unit needs to be…”

“I purchased a 2018 Jeep Grand Cherokee on [XXX] unaware that the vehicle was subject to a federal safety recall and stop-sale order. The recall (NHTSA 24V-838 / Manufacturer 94B) was issued on November 7, 2024, for a defect in the ABS control module that may disable the Anti-lock Braking System (ABS), Electronic Stability Control (ESC), and cause unintended vehicle movement even while stationary. A stop-sale order (VIR 2024-11-14) was issued by Stellantis on November 14, 2024, prohibiting the sale or delivery of affected vehicles until repaired. Despite this, the dealership sold me the vehicle while the recall was still open and unrepaired. In the months following my purchase, I began experiencing issues with the Electronic Throttle Control (ETC). On June 15, 2025, I paid $770 out-of-pocket for ETC sensor repairs after a loss of throttle response. The vehicle has not yet been inspected by the manufacturer, but this defect may be linked to the broader electronic issues cited in the recall. No warning lights appeared in advance. I have been driving this vehicle daily without knowing it could malfunction in a way that puts myself and others at risk. I only learned…”

“I was driving my 2018 Jeep Grand Cherokee Laredo 4x4 on the highway at approximately 65-70 MPH, when suddenly the car started sputtering and my check engine light came on and started blinking. The car was essentially not drivable, so I pulled over at a gas station and had the car towed. This is dangerous as I was going uphill, and could have caused an accident, or worse. I did not have a check engine light prior to this! The next day the car was inspected and diagnosed by independent service center, who said there was a cylinder 4 engine misfire, so they replaced the spark plugs and the coils. Car was fixed, or so I thought, fast forward a couple months later while driving to work, same issue (misfires and sputtering) occurs again and coolant now runs low even though there are no visible signs of coolant leakage. I spoke to the independent service center and they mentioned there might be an issue with the engine such as a head gasket or fuel system. I got the Jeep towed to get checked, it was confirmed that it was an engine issue, especially the head gasket, camshaft, pistons, and lifters, and that I was going to need a new engine and it would cost between…”

“The 2018 grand Cherokee has issues with mother board and electrical ghosts. 1st it was headlights and dome lights. they would flicker. i had to change the front lights 2x in a year. i thought this was odd. never did this with any car before. then I was driving home from work during rush hour and it started to rain. started the wipers front and back. the back wiper started and went halfway and got stuck. what happen? the front wipers went on for several revolutions (say 10-20 ) then stopped. started again. then stopped again. the rain intensity grew. Now the -wipers would only work when turned in opposite direction (the manual 1 pass move). this happened as i was trying to get home and stuck bumper to bumper on [XXX] . on this dangerous highway in middle of now a torrential downpour the front wipers now decided it wouldn't work AT ALL. i couldn't see anything and veered off to the shoulder thank god - waiting for rain to stop and then safely proceeded home. the next day the wipers worked. no check engine or anything. this goes on for a week or so with no issue. then out of nowhere the driver seat decides it has a mind of its own and pushes me all the way to the…”

“The main screen in the vehicle delaminated and caused quite a number of issues. Heated seats would randomly turn on and off and the temp on gbe seats would not go down, phone would call people over and over including 911, compartment heat would randomly turn on the highest setting and would not turn down, goo like substance came out of screen into the storage compartment below the screen, getting all over items stored. The radio would constantly change stations. All the issues became true safety hazards. I called their 800# and was referred to a dealer who charged me over $1000 with no remorse from Jeep. I am a 25 year owner of jeeps and not too pleased with the lack of response from Jeep. My next car will not be a Jeep!”

“Uconnect 8.4" infotainment screen is delaminating. This causes the touch screen to randomly press buttons during driving. This can make calls to contacts, or emergency numbers during driving. This can change settings at random during driving like seating heat, radio stations, other vehicles settings such as drive assistant software, turning on and off, blind spot notifications, lane assist, etc. Very distracting for a driver to continue to try and drive while focusing on what just happened or what was just changed. If your phone is connected to the device, it can call 911, or other contacts change volume setting, get stuck to where you can't change them. gain very distract and a safety concern. It is a well know issue with this model. This issue is no longer being fixed by service center or dealer without a 1500-2500$ service fee. This seem like a manufacturing defect and major safety concern while driving.”