Other contributors have said "What causes by ABS sytem to activate in your chevy venture?" is the same question as "What is the ABS light on a Chevy venture?" If you believe that these are not asking the same thing and should be answered differently, click here
ABS stands for Anti-Lock Brake System. If the ABS light is on, your ABS has a problem. Clean all wheel sensors of any debris. If that does not help, Seek out a professional for this repair.
The TRACTION warning is usually caused by a problem in the ABS system. See the link TRAC WARNING DESCRIPTION link below.- TechJK
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The abs light is on because you either have an abs sensor bad or a wiring problem or a hub bearing shot. You will hear a growling noise is you have a bad bearing usually a lower speeds like 40 mph....