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The headlamp assembly is replaced as complete unit. It contains headlight leveling motors, a little cooling fan, LED lighting, LED drivers and an internal control module.
When these fail it's usually the driver on the back of the headlight. Unfortunately you can't buy that separate from GM. Check on eBay for a used damaged headlight. I've sold several from part outs for just the driver but don't have any left.
When these fail it's usually the driver on the back of the headlight. Unfortunately you can't buy that separate from GM. Check on eBay for a used damaged headlight. I've sold several from part outs for just the driver but don't have any left.
So they can be disassembled then? Some refer to them as being "sealed". But I noted that they have a cooling fan - or at least that is what shows in the schematic. Which made me think they might be vented. Are they?
It's a heat sink on the lamp driver remove 4 screws and pull it up. The driver is removable with the headlight assembly out. I'm not sure why GM doesn't offer this part separate.
