Collision warning fault

[Tejas]

i started the car this morning, after the gym and i got a warning light that there was a problem with the collision braking system. i only had a short trip to the house and it went off before i got there. leaving in a few and i'm hoping it doesn't pop up again right now, closest dealer is 2 months out on loaner cars because of all the flooded cars they had from our may rains, smh. 2200 miles, not a happy camper, wednesday feeling like a monday.

[Time]

Was the sun light pointed at the windshield? If the camera is blinded by light it will show you warnings that those systems aren't working.

[Dranter]

I got the message one time before and for a fact I know that there was no sunlight pointing at the camera because the road was surrounded by a thick forest. It didnt work the duration of the trip but once I turned it off and back on again it started working and has continued to work fine ever since.

[Tejas]

no man, it wasn't. i was in the parking garage, it was pretty dim. when i started it again and left for work, nada. i even got up close to a couple cars and it came on, no problem. hmm

[01ON19]

It can also stop working during rain. I see you are from Houston so thought I would mention it. The problem should go away.

[Time]

Originally Posted by Tejas

no man, it wasn't. i was in the parking garage, it was pretty dim. when i started it again and left for work, nada. i even got up close to a couple cars and it came on, no problem. hmm

If it's been fine ever since it sounds like it was blinded by the light. Maybe back it in to that parking spot from now on?

[G30 B58]

Originally Posted by Kanuck

It can also stop working during rain. I see you are from Houston so thought I would mention it. The problem should go away.

This happened on our 435i. Went away when the heavy rain stopped. Meh.

[KASM3]

Mine usually faults in heavy rain or after touch less car wash