Anybody has experience cruise control kicking out while driving.

Mine did a few time on a trip last week, at first I tought the brake pedal was maybe a little loose and could hit the brake switch..... but I was able to tap slightly on the pedal without loosing the CC !

Any idea ??

Have you checked for any pending codes? As I understand the logic of the thing, it will kick out on any occurrence of a DTC. Perhaps there is something that triggers pending, but doesn't trigger the light? Or resets before the light flashes on? That could be pretty much any one of the Manual Inputs - Sensors - Control Solenoids, from the ground to the driver.

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'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

Yes check for codes.

Could be the switches on the steering boss or the clock-spring that carries the switch outputs etc. down to the logics. A failing clock-spring usually starts failing when turning either left or right so you could try some sharpish turns on the open road to see if that affects the cruise control.
I do not have cruise control or ABS but have replaced the clock-spring twice on my 2002 Export 2.5 L CRD for other problems such as air bag light!

Could still be a failing brake switch....it has three different switches on it.
The brake switch cannot be re-fitted after removal....you have to put a new one in its place if you remove the original one.

I believe an ABS sensor problem also kicks out Cruise Control.

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2002 Export CRD