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Good morning, I'm having some strange issues with my 2015 XL SLT that I'm trying to see if anyone else has experienced. The issue that I'm experiencing is both an intermittent right headlight failure warning and an intermittent windshield wiper failure (inoperable). I would like to start with the headlight issue: when the warning light comes on, the interior signal indicator blinks fast, however, when you go outside both lights in the front and rear are operating as normal. This problem seemingly only occurs below 32 degrees Fahrenheit and when driving in the snow/ice. The warning light will go out and be fine for days and even weeks and then come back. This originally led me to believe that there was an issue in the wiring because when this happened it also affected the mirror turn signal. Secondly, about a week or so after this started, I got into my vehicle and my windshield wipers wouldn't work. I took it to a trusted family mechanic, as I didn't have time to fiddle with it, and he changed the windshield wiper assembly. We came to that conclusion after the mechanic hooked up his computer to override the turn signal and wiper control stalk and he also couldn't operate the wipers. We were both under the impression that this was the issue. I got back into the vehicle following the assembly replacement and the wipers didn't work. We checked the part and the dealership we purchased it from and it was not the assembly. I ended up needed to drive the truck and upon driving it the wipers started working again but went back out again This issue ALSO only happens when the temperatures drop below 25 degrees Fahrenheit it seems. This is where I'm at now and why I'm hoping for some advice/second opinion. The mechanic believes that my fuse box is faulty, however, when we took the fuse box out there is no corrosion. We looked up the wiring schematics and it turns out that GM unfortunately hard wired the wiper relay into the board that's on the fuse box and they are known to go bad but there's no way to really see if it is bad. The only solution is to replace the fuse box itself but the part new is $500 and once the box is opened (if it turns out to not be the fuse box) the parts store/dealership will not let us return it. Has anyone else had this issue before? Are we looking in the right spot? I apologize for the lengthy post but if I don't have to spend $500 on this fuse box I really don't want to. Used was also not an option due to not being able to find a tested unit and additionally when finding a tested unit it was also not able to be returned. Thank you for reading this and for any advice that can be provided. TLDR; intermittent wiper and right turn signal inoperability issue. Mechanic believes issue is $500 fuse box but we can't prove it. Wanting second opinion from masses.

Every time I start the 2014 Silverado LTZ the wipers make one swipe. This started as an intermittent issue, I could cycle the wipers and they would return to home position and work as they should. Occasionally the wipers would be slightly above the home position as though they were in intermittent mode. If I cycled them a few times they would return to home position. Now they are always slightly above the home position no matter what I do. Any suggestions on how to get this resolved?

Yesterday was my first time driving my truck in snow and my wiper blades froze to the windshield. It wasn't snowing real hard, and it's garage kept, so I started with a clean windshield. The whole defroster and wiper design is terrible. The defroster vent sits high on the dashboard, so it misses the lower few inches. But then the wipers sit so low on the windshield that it is actually below where the windshield and dashboard meet. So even if the defroster did blow lower, the dashboard still blocks the air from getting down there. There is no way I see to heat that part of the windshield or the wipers. You can see it in the pic. Luckily I was close to home, but I would think on a longer trip the only way to take care of it would be to pull over and spray de-icer on it or clear it by hand. But even when it did come free, the wipers worked for crap because they were frozen solid. The only other thing I can think of is installing some kind of defogger strips like the rear windows have, but I don't see anything like that online. I felt it was such a safety issue I filed a complaint with NHTSA. Anyone else have any experience with this and any fixes. My first oil change is coming up so I will be seeing what the dealer says, but I don't see anything they'd be able to do, it the design of the truck that sucks.

Hi: My windshield wipers are running slow and at the same (slow) speed on all settings. Is this a shot wiper motor? If so is it a diy replacement? Thanks in advance. 2014 GMC Sierra SLT

I bought a 1992 K1500 GMC Pickup a few months ago and it had an existing issue with the washer fluid pump in which the seller said it would not turn off, so they removed the fuse for that. But also the wipers only work on either high speed or with a manual push of the washer tab (so they don't work on intermittent or regular low speed). When turned off, they stop wherever they are and do not return to the down position. I have now been in enough highway rain that this situation is bugging me. Does this seem like a problem with just the switch in the arm, or is it likely all of the way back to where the harness for that plugs in under the dash or even farther? (A lot more labor to get the whole harness out.) Any idea how to test to determine where the problem is without removing lots of steering column and dash parts? Thanks, Woodman