Flasher module

[Amaster]

Where is the flasher module located on a 2011 gmc yukon looking at converting to led turn signals and want to know the location

 

[Joseph Garcia]

I do not believe that there is a removable flasher in your truck. The flasher is built into the BCM circuitry. If you convert to LED turn signals, you either go with the hyperflash (like I do) or you install resistors in series with the LEDs in the wiring outside of the light lens assembly. The resistors are typically sold wherever you purchase your LEDs.

 

[Rocket Man]

No module, flashing and thus hyper flashing is done by the BCM.

 

[Amaster]

No module, flashing and thus hyper flashing is done by the BCM.

Anyway to change it so it thinks differently

 

[Rocket Man]

Anyway to change it so it thinks differently

Yes but it’s expensive. You need to flash (tune) the BCM. I did this on my 08 Silverado using the Autocal I already owned. There’s only one company I know of that offers this, BT Dieselworks. If you own an Autocal, it will cost you $195 for the tune file. If you don’t own one, you’ll have to buy one or now I just heard their Autosync can be used to flash the BCM. The Autosync has a ton of other cool features but it won’t eliminate hyper flash on the GMT900’s without flashing the BCM. They sell a package deal for both at $349. Look for the features comparison link on this page.

2007-2014 AutoSync-G2 (GMT-900)

IMPORTANT NOTE EFFECTIVE JANUARY 15th 2023. All AutoSync's now include the torque converter lockup controller feature as standard equipment, however it will only be active/function on 6.6 Duramax diesel vehicles. The new second-generation AutoSync-G2 is now available...new features and...

www.btdieselworks.com

 

[Joseph Garcia]

I left the hyperflash on mine, as I believe that the fast flash attracts more attention from other motorists, and after all, that is the purpose of the directional signals in the first place. I will note that hyperflash is illegal in some states.