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Discussion Starter #1
Hello,

Just run into an issue with 2017 Pacifica PHEV. Driving to a vacation in Sierra - going uphill at some point while running 70 MPH / 50-80KW power from gas engine car suddenly displays warning that front collision system and traction system failed, displays check engine light, FCW lights (2) and traction system error. On top of that it goes into so-called "limp" mode not allowing speeds above 44MPH.

This happened the night before. This morning car started Ok but check engine was still lit. Drove to a dealership 80~ miles downhill . Thanks to service advisor/repair people who were able to look at it in a moment's notice - they said nothing abnormal and cleared check engine. On my way back as soon as car was around 10+ miles uphill in the mountain it happened again. Stop/wait/start - cleared FCW and it allowed to drive a few more miles and then limp mode again. Have to drive up the mountain with the speed of 44MPH. I am pretty sure in the morning it would be Ok.

Has anybody experienced an issue like that?

So from my engineering point of view it looks like something (processor/cpu, controller unit, etc) overheats while engine is under higher load then usual and malfunctions.

Thanks.
 

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Hello,

Just run into an issue with 2017 Pacifica PHEV. Driving to a vacation in Sierra - going uphill at some point while running 70 MPH / 50-80KW power from gas engine car suddenly displays warning that front collision system and traction system failed, displays check engine light, FCW lights (2) and traction system error. On top of that it goes into so-called "limp" mode not allowing speeds above 44MPH.

This happened the night before. This morning car started Ok but check engine was still lit. Drove to a dealership 80~ miles downhill . Thanks to service advisor/repair people who were able to look at it in a moment's notice - they said nothing abnormal and cleared check engine. On my way back as soon as car was around 10+ miles uphill in the mountain it happened again. Stop/wait/start - cleared FCW and it allowed to drive a few more miles and then limp mode again. Have to drive up the mountain with the speed of 44MPH. I am pretty sure in the morning it would be Ok.

Has anybody experienced an issue like that?

So from my engineering point of view it looks like something (processor/cpu, controller unit, etc) overheats while engine is under higher load then usual and malfunctions.

Thanks.
Hi pasltd,

Sorry to hear about this! If you decide to visit a certified dealership for further diagnosis I'd be happy to offer assistance if needed, just send us a PM with your VIN and let me know.

Andrea
Chrysler Social Care Specialist
 

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Discussion Starter #3 (Edited)
Happened again while returning back home. Luckily I had OBDII BT sensor + Torque Pro on my phone. I am attaching pictures how it looks once the issue occurs and error code.
Looks like a very specific condition triggers the issue - night / morning / day driving with ACC is Ok while evening once daylight changes to twilight - it triggers the error.

Restarting the car clears FCW errors/warning lights but check engine stays. Moreover, if idling in such a condition it does not stop the engine thus charging the battery. If car with a few % of a battery goes back on highway, everything is normal till the battery is depleted. Once gas engine kicks in - bam! It happens again. I still have the Chrysler case # from beginning of January hoping I can get attention of a dealership as soon as possible.
 

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