Table 1 shows three common lane departure related problems of the 2020 Jeep Grand Cherokee.
| Problem Category | Number of Problems |
|---|---|
| Assist problems | |
| Blind Spot Detection problems | |
| Warning problems |
I am reporting significant safety issues with my 2020 Jeep Grand Cherokee limited x. The vehicle has repeatedly experienced failures in critical safety systems such as adaptive cruise control (acc), parksense, and lane departure, which randomly disable while driving, particularly in cold weather or after a restart. These failures compromise essential safety functions necessary for highway driving and parking. Additionally, I encountered a severe issue regarding the vehicle’s lack of over-voltage protection. While charging the battery, it was accidentally exposed to 48 volts instead of 12 volts, resulting in damage to key electronic modules, including those controlling safety systems. This lack of protection from foreseeable charging errors is concerning, especially given the advanced electronics in modern vehicles. Other Jeep owners have reported similar issues related to voltage fluctuations affecting acc, lane departure, and parksense systems. Battery-related issues seem to be directly linked to the failure of these critical safety features?(Jeep cherokee club)?(Jeep forum). Voltage instability, particularly with the engine stop/start (ess) system, has also been widely discussed, further pointing to potential flaws in Jeep’s electrical design. Given the critical nature of these systems, their failures due to inadequate over-voltage protection and inconsistent electrical performance represent a serious safety risk. I request that NHTSA investigate these concerns, as they may be affecting a broader range of Jeep vehicles, putting drivers and passengers at risk. While a fire did not occur, the potential is there due to the burning of electronics with strong odors and smoke.
My Jeep is a 2020, and I recently bought it last June as a certified preowned vehicle from a Jeep dealership. I was having electrical and fuse problems when my moon roof on the vehicle stopped working. Recently driving home at night, I lost all lights on the vehicle. Headlight, high beams, brake lights and turn signals, the lights do not work on the vehicle and I was driving in the complete dark. My gas tank also was having issues and it does not allow me to fill the tank because it thinks it is always “full” even though it is not. I brought the vehicle to the dealership and they stayed I have a completely fried computer system as well as the vent tube on my gas tank is “clogged” and the entire gas tank needs to be replaced. I have owned the car for less than a year and a half, it is only three years old and the warranty just expired. There is no way a vehicle with only 32,000 miles has a completely failed computer system along with needs a full gas tank replacement. They are stating to fix the safety issue it is $2700. The manufacturer is taking zero responsibility. Roughly 6 months before I took it to them because I was having fuse issues.
Purchased used 2020 Grand Cherokee at christmas time 2023. Vehicle had 25640 miles on it. On April 24, 2024 while driving home maybe 2 miles from home, I was lucky not to crash when losing steering response. A warning message appeared on the speedo, stating, “power steering unavailable service required “. 28k miles is about 2,400 miles driven to date. I drove straight home and made an appointment for service. Koons Chevrolet where I bought the car performed diagnostic testing to determine replacement of the steering gear rack and pinion would require replacement and the repair $5800 parts and labor. The module is internal and not serviceable therefore the whole steering gear must be replaced. Cost is prohibitive for a fairly new vehicle.