High Speed Transmission Noise & Major Sunroof Rattles

mluk

New member
Joined
Sep 6, 2025
Messages
22
Media
10
Reaction score
24
Location
WA
Vehicles
2025 LC Premium
Hey all, I have a '25 premium and just hit 11k miles. Two things I wanted to bring up that I haven't seen any other mention of yet...

1. At highway speeds, once warmed up, I'm noticing possibly a transmission noise similar to what you'd hear with wheel bearings humming that are worn. It comes and goes, but the vehicle has to be very warm and at highway speeds. This just started in my last two road trips, well into the trip on the highway. But otherwise, the transmission is shifting fine.

2. Sunroof rattles, big time. The front, center of mine started rattling a few thousand miles ago. It took FOREVER for the dealer to get it to happen (they spent a 1/4 tank of gas just driving around after sending me home the first visit without doing anything). They ended up stuffing some foam above the overhead control electrical panel. If I have the sunroof cover slid back, it sounds like something is clicking around, and it gets dampened with the cover shut. I'm just hoping I can point the dealer to a better solution.
 
There are posts on here about transmission noises in the cabin and solutions. Not sure about roof/sunroof rattles though.
 
I would not accept that “solution” regarding the sunroof. This is what warranties are for.
 
Supporting Vendors View all →
Back
Top Bottom