Did GMC test the Hummer EV in the rain?

super8 · Jan 10, 2025

I drove the Hummer in heavy rain for the first time yesterday. Driving it was great! The triple windshield wipers work very well.

However, I got soaked getting in and out of the Hummer! There are no gutters on the skyroof panels, so the water just dumps right into the vehicle.

This happens on both the driver and passenger sides. Anyone else have this issue?

Georgiy · Jan 10, 2025

I have the same problem, and it's a problem for all trucks.I'm still suffering from water getting somewhere and the truck won't let itself be charged. Until it stands for 5-10 hours and dries . I've been figuring it out for a week now

OmegaHummvee · Jan 10, 2025

My roof leaks at or around the front inner corners of the second row panels. No solution yet. I also have the shower when entering and exiting the Hummer.

Dickbanks · Jan 10, 2025

Wait thats not normal? lol

luvhumrz · Tuesday at 7:25 AM

I had a slight drip up front from one of the sky panels. I removed it and reinstalled it. Seems to have fixed the issue for now. As for not charging when wet. That needs to be addressed. That's unacceptable. To be clear I do not have the charging issue. But I would not let GMC get away with that one.

Dickbanks · Wednesday at 10:16 AM

luvhumrz said:
I had a slight drip up front from one of the sky panels. I removed it and reinstalled it. Seems to have fixed the issue for now. As for not charging when wet. That needs to be addressed. That's unacceptable. To be clear I do not have the charging issue. But I would not let GMC get away with that one.

I live in a place where it rains 95% of the year...your charging issue is not normal as i have no issues with charging in wet/rainy weather...or i wouldnt go anywhere...i cant even remember when i didnt charge in the rain... bring your truck in for service...this is not a common hummer issue.

SuperNova · Thursday at 8:56 PM

OmegaHummvee said:
My roof leaks at or around the front inner corners of the second row panels. No solution yet. I also have the shower when entering and exiting the Hummer.

I may have a solution for that. I had a similar issue and I haven’t really noticed the water leaking in anymore. So basically that rear I bar is mounted backwards from the factory. Also the plastic cover that hides the bar. The way to tell, is to pull the plastic cover off and if it says “front” on the rear portion of that trim, that means the I bar is backwards. It’s 4 bolts that hold it on. Very easy to switch around.

SuperNova · Thursday at 8:59 PM

OmegaHummvee · Friday at 7:34 PM

SuperNova said:
I may have a solution for that. I had a similar issue and I haven’t really noticed the water leaking in anymore. So basically that rear I bar is mounted backwards from the factory. Also the plastic cover that hides the bar. The way to tell, is to pull the plastic cover off and if it says “front” on the rear portion of that trim, that means the I bar is backwards. It’s 4 bolts that hold it on. Very easy to switch around.

Appreciate the feedback. Checked and mine is installed with front forward.

SuperNova · Friday at 9:07 PM

Hmm, could possibly be the weather stripping that goes around the panels on top of the vehicle. I actually put silicone around the bolts when I reinstalled the i bar. The water basically pools up in that plastic trim you pull off. Every time I would go around a curve my son got a shower. lol