Sunroof Drain Hole Entry & Exit Location (w/ Pictures)

[dmorriso]

I spend some time today dealing with a leaking sunroof on my 2020 LT Trail Boss Crew Cab, and I was unable to find any pictures or good descriptions (on GM Trucks or elsewhere) showing drain hole locations for entry or exit, so I figured I'd fix that.

 

Entry holes:

• One on each corner of the sun roof.
• To easily see (and access) the front holes, you need to remove the pop-up air deflector.
• You can't really see the back holes, but you can see the hose coming out from the corner.  If you put water in the metal track, it will run back to the rear holes.
• See arrows in attached photos.

 

Exit holes:

• The front exit appears to be behind the wheel well lining on each side (I didn't actually remove it to verify); water will drip off the mud guards when draining.
• The rear exit is on the back of the cab; if you look up between the bed and the cab you will see a black cylinder sticking out on each side.

 

[epacheco]

How did you remove the air deflector?

[Black02Silverado]

Thanks for showing this.