Forum | Marketplace | Knowledge Base | | H1 site | H2 site | H3 site
Click Here To Visit UsedH1.com
Click Here To Visit UsedH1.com
Click Here To Visit Adventure Accessories
Click Here To Visit Adventure Accessories
Click here for a listing of all HUMMER Network sponsors

Hummer Knowledge Base

The Hummer Knowledge Base

Electical/Lights/Turn Signals/Flasher Units:


The other day someone posted that the flashers in the Hummer were weak when a trailer was attached. I too experienced this problem and I just yesterday went to the auto parts store to get a replcement set. There are two round cans (mine were tin colored) on the black plug block above the fuses area. You get to them through the access hatch in the driver cab area. They pull straight out (wait till you get new ones before pulling).

As for what to get, there were three levels of units at the store I was shopping, regular, heavy duty, and extra heavy duty, as well as electronic and thermal, as well as a number of pin configurations. The Hummer uses a two terminal US standard unit. Regular is 2 lamps, heavy duty is 2-6 lamps and extra heavy duty is 2-12 lamps. I got the extra heavy duty (if able to handle more current, the contacts should last forever). As for electronic versus thermal, I got the electronic. I doubt there is any difference in performance, but the reason the stock units blink too fast is that they are thermal units and they heat up too quickly because of the extra lamp load, while the electronic unit seams to have a one-shot, so that the variation will be on voltage rather than current.

You will need two flasher units (turn signals and emergency flashers). Pull the stock ones out and push in the new ones (it is not that hard to align the terminals by feel, since it a bit hard to see the socket for one flasher).

John Durbetaki


Back to main page

The Hummer Knowledge Base is a collection of informative posts from the Hummer Network forums and mailing lists, contributed material and links to outside web sites.
The Hummer Network is not responsible for the accuracy of the information contained herein or on outside web sites, nor for any situation arising from the use thereof.
2006-2011 by The Hummer Network. No material from the Hummer Knowledge Base may be reprinted or republished in any form without permission.