2008 silverado brake and abs light comes on

[black03silverado]

just installed the 87 octane tune, turned off the active fuel management(DOD) and adjusted the tire size to 285/70-17 on my 2008 silverado 5.3, now when i drive a couple of miles the brake and ABS lights come on when i shut the truck off for a bit they will go out, but come on once again after a couple of miles driving , how do i get them out??. other mods i have done to the truck are a k and n drop in filter and magnaflow cat back exhaust, the tuner i used is the U7194. the version i think was v9r18, the truck is a 2008 chevrolet silverado 5.3l flex fuel and it is 4wd. thanks

[mikel]

Try lowering the aspect ratio setting to 65, and see if that helps.

[mitties]

Try setting speed limiter 1 to 120mph and don't touch speed limiter 2. This worked for my truck 07 5.3 4x4.

[black03silverado]

ok changed tire size aspect to 65 and set limiter1 to 120 mph took for a drive seems ok , going on a longer run tomorrow will keep u posted!!

[black03silverado]

ok went for a longer drive today everything is great!!!!! thanks for the help guys!!!!!!!

[06MonteSS]

cool...

[black03silverado]

cool...

more like AMAZING!!!!!! what a difference in my truck!!!!!!!!!

[black03silverado]

cool...

more like AMAZING!!!!!! what a difference in my truck!!!!!!!!!

[black03silverado]

this fixes the e-brake and abs light problem on the nnbs gm trucks or atleast it worked for mine!!

[mikel]

awesome, glad you are enjoying it.