Two problems related to brake light on have been reported for the 2018 Jeep Grand Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Jeep Grand Cherokee based on all problems reported for the 2018 Grand Cherokee.
2018 Jeep Grand Cherokee. Consumer writes in regard to illuminated check engine and brake system lights.
While using the acc function and setting forward distance at any length the problem is that when the car in front of you slows, stops,,or turns my vehicle will brake on its own. However, while braking during the mentioned operation the big problem is that the brake lights do not illuminate. I have had several close calls with someone nearly running into the back of my vehicle during the use of the adaptive cruise control (acc). This can be extremely dangerous if you are now fully aware of this problem. This should have been addressed during the acc hazardous examination phase. A very simple fix would be to install an I/p switch in the brake line at the master cylinder so that the pressure from the acc applying the brakes sends the pneumatic signal to an electrical signal that lights up the brake lights. This problem should absolutely have been caught and addressed during the design phase. I found out when I asked a service manager about it and he said the lights do not come on. He also said they know about it.
| Service Brakes problems | |
| Brake Light On problems | |
| Brakes Failed problems | |
| Brake Disc Caliper problems |