While driving down the road the dash lights will shut off and turn back on without warning. It almost seems like it shuts off but the engine stays running. The radio presets stay programmed. Has only done it twice in the last month and I've owned it for 3 years. Seems to do it in the extreme cold, but vehicle is fully warmed before I drive it. I usually let it run 20 minutes before I leave on days when it is really cold( usually below 32 degrees Fahrenheit) all of the gauge lights shut off, the radio, interior lighting. Haven't noticed if exterior lighting goes off as well.

- Harrisville, NY, USA

I purchased a certified used 2006 Jeep Grand Cherokee in 2008 with 26K miles. Besides a malfunctioning electronic shifter in 2009 everything has been running great until 1/2/2011. At approximately 6:30pm while driving on the freeway at 65mph all exterior lights and interior lights (except for the map lights) began to flicker and then fail. The lights would come back on for a few seconds and then fail. The problem occurred intermittently over the next 30 miles and persistently worsened until I got home when the lights remained off for 15 to 20 seconds at a time. Each time it failed while driving I cycled the switch, cycled the brights and tried anything I could to get the lights to stay on. None of these methods worked. Upon getting home safely I turned the car off and restarted it only to have the same problem after two restarts. I went to bed and tried it in the morning and the lights worked fine for a 70 mile daylight drive to the dealer. Just received word from the dealer that they could not replicate the failure so there is nothing they can do. This vehicle is unsafe to drive and dangerous to others on the road in this condition even if it only happens once every two years.

- Tigard, OR, USA

While driving at night, headlights on vehicle went off. By flashing the light switch to what would normally turn on the brights, the lights would come back on, regular strength (not the brights). This happens repeatedly every time the car is driven at night, several times during the night.

- Lacona, NY, USA

The contact owns a 2006 Jeep Grand Cherokee. The contact noticed that all of the illuminated components in the vehicle would dim intermittently. She was informed that the lights flickered as if she were flashing them during the day and night. The exterior lighting shut off completely. The interior lighting, specifically the instrument panel, would dim while the vehicle was in motion. The contact would have to manually turn them back on again. The electrical system, however, would still malfunction. She took the vehicle to the dealer on two different occasions and to a private mechanic once, but neither could duplicate or determine the cause of the failures. The manufacturer has not been notified. The current mileage was approximately 31,000 and failure mileage was approximately 30,000.

- Mount Vernon, OH, USA