Clogged sunroof drains can allow water to enter the interior and accumulate under the carpet where various control modules are mounted. Over time, the accumulated moisture can damage the control modules.
Average mileage: 115,694 (46,000–190,921)
14 people reported this problem
I had this problem too. Make sure your service station cleans the weep holes and tubing that discharge the water from the sun roof gasket to the street every time you get the oil changed (dealerships seem to do it as part of the standard oil change service). I have covered the gap between the sun roof and car top with clear duck tape to keep water from getting to the gasket.
I was lucky because my insurance covered $1,900 of the cost of the repair and replacement of the comfort control module that was shorted out. Most of the cost was for labor because the front seats and most of the passenger cabin has to be removed to get to the module.
Noticed the interior floor was flooding every time it rained. After taking it to several repair shops then having it checked at a windshield replacing shop. Luckily the worker was able to find the actual problem which was the sunroof drain was clogged causing the water to build up and spread throughout the car, mostly the carpet on the floor and glove compartment. In the winter time, anything electric (i.e. radio, odometer, dashboard lights etc.) will shut off while driving. Assuming that the water is freezing up and is damaging the control modules. Still working on fixing the trouble & replacing all damaged parts.
CCM (comfort control module) has built up corrosion around harness that enters it due to moisture from the sun roof. this being said the CCM has coded at failure causing my 2 rear doors to be locked and unusable and also the windows to be unusable. Also having issues with a code saying failure towards my oil pressure causing my car to not start. 2 problems in less than a month.