the message just started
Chevrolet Q&AAsk Your Question
2004 Chevrolet Silverado 1500 Question: dashboard message reads, service brake booster.
Answer #1pushrod August 25, 2012, 11:24Master
Have scan test on brake system performed.
Replytilesquared, August 25, 2012, 11:26Rookie
Replypushrod, August 25, 2012, 11:32Master
If auto savvy, check vacuum hose and check valve at booster. Do brakes feel ok
MShaw August 25, 2012, 12:57Enthusiast
We had one of these recently, and it turned out to be an electrical problem. I don't remember the details, but I believe it was a corroded connector at the ABS Module causing the problems. If your brakes are actually feeling ok, with no dropping or hard brake pedal, the problem is likely electrical rather than mechanical (meaning, the booster itself is ok). May wish to consider getting a professional on this one, depending on your skill level.