My check engine, my ABS light my traction control light my emergency brake light my messages on my computer check service air suspension service traction control been to the dealer more than seven times still on the warranty I have about 98,000 miles on the truck. and the dealer can't figure it out I've been on the phone with corporate and been no help has anybody experiences problem and nobody could be.
And when I diagnostic with OnStar I get these codes back.
U0121
P0856
P2272
C0242
U0109
And when I diagnostic with OnStar I get these codes back.
U0121
P0856
P2272
C0242
U0109