Help: Has anyone replaced the GX550 shark-fin antenna cover? (6 Viewers)

[Jin_Chloe]

Good morning, Good afternoon, Good evening!

My garage door wasn’t raised completely and caught the shark fin antenna on my 2025 GX550 Overtrail+ as I drove underneath. I have a garage-door technician coming to rewind the cables and correct the door issue.

The impact lifted the antenna cover approx. halfway off. I pushed it back into place, but it lifts slightly if I gently pull upward. I also found two tiny broken pieces from the retaining tabs, approx. 1 mm each. I’m concerned about moisture getting underneath the cover.

I’ve already ordered the black OEM antenna cover kit, part number 86077-48060-C1. From what I understand, replacing it may require lowering the rear headliner and unbolting the complete antenna assembly from inside the vehicle.

Has anyone actually replaced this cover or removed the antenna assembly on a GX550?

Any firsthand experience, photos, or service-manual instructions would be greatly appreciated. Thanks!

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[ctechauto]

Yes, you'll need to remove the headliner and associated parts. The sharkfin is bolted in with 1 bolt. You will need to replace the whole fin/antenna as you already alluded to since you broke some clips and mounting points.