I don't think that the mirror control has a light, does it?

 

The bulbs i got from ebay are not correct even though it said they fit 2009 h3t alpha. Anyone have an accurate source for replacement bulbs ? The Chevy dealer just said they are not serviceable and i need to replace the door swich panel. Thanks

 

So they fit everybody's H3/H3T but yours? A T4/T4.2 bulb is a T4/T4.2 bulb, they come in different colors and, if LED they ARE polarity sensitive so they have to be put in in the correct direction (you have a 50/50 shot, if they do not work at first, remove, rotate 180 degrees, try again).

Chevy dealers are full of chit.

 

wrong, the bulbs i got from ebay do not fit and i am well aware of the bulbs specs but thanks for typing it twice. The gm part number is what I am after if anyone knows it, I would appreciate it. Thanks in advance. ps, my experience with Chevy dealers has been excellent across the board .

 

wrong, the bulbs i got from ebay do not fit and i am well aware of the bulbs specs but thanks for typing it twice. The gm part number is what I am after if anyone knows it, I would appreciate it. Thanks in advance. ps, my experience with Chevy dealers has been excellent across the board .

 

GM does not list a P/N for the bulb. You have to buy the entire assembly of which the bulbs are out.

Bought these and fit perfectly in the climate control and door switch assemblies. NOT LED.

 

I just pulled 1 on my oe master switch and it measures 10mm base.

 

Also, the access hole is 11mm diameter on the switch.

 

There could be an issue with the cheap Chinese junk on ebay no doubt, but I can assure you T4/T4.2 bulbs do indeed fit

 

Just replaced two bulbs on the climate control module. I used the cciyu 20 piece warm white T4/4.2 Neo wedge halogen bulbs. Ordered them from amazon.