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Cascading Warnings: Blind Spot, Perimeter Warning, Crash Protection, Traction Control, Etc.

108 views 2 replies 2 participants last post by  us3r1d  
#1 ·
So, two months into my GC 4xe ownership and this happens. I took it out on the beach last evening, and we were going through a thick sandy patch that was also washboarded (if you can imagine that!) so the vehicle was bouncing up and down a lot. All of a sudden I started to get cascading warnings on the panel. First the Blind Spot detection, then the perimeter warning system followed by the crash protection system, and finally some weird transmission warning that I didn't have time to see. All within about 5-10 seconds. Also, the speed sign reader warning came on. It was as though the whole external sensing system got glitched out.

I kept driving for a little while, then decided to stop and restart the engine. That didn't seem to help, but the car was still drivable so I made my way off the beach, back onto the road towards home. Little by little all those warnings went off, and I could tell at least that the blind spot system was working because it would go off and on when cars were beside me. But what remained was the little amber engine light (or MIL) as the manual describes it.

The manual says this may go off on its own, and if it's not blinking it's okay to drive the car, but what weirdness! That has to be a software issue somewhere. I'm going to call the dealer but thought I'd share this to see if anyone has thoughts about this. It's a brand new 25 model GC 4xe Summit edition.
 
#2 ·
Okay, I spoke to the service center about this and the guy had a good explanation...at least one that fit the scenario. He reckoned this to be a result of flying sand that obscured the external sensors of the vehicle which caused them all to shut down as a safety measure, especially the front crash protection sensor; by shutting this system off it prevents the car from screeching to a halt. As I got back onto a road and whatever was blocking the sensors blew away, the systems came back online. Likewise, he said the engine light normally takes between 2 and 5 key cycles to clear, which is exactly what happened as that light went away this morning. So this seems logical. He said he has certainly seen it before in both Jeeps and Dodge trucks.

One prevention for this was to put it in Sand mode when going out into this type of terrain, which tells the system to automatically adjust systems to prevent these types of warnings. I don't remember reading THAT in the manual!