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2005 chevy trailblazer_lt
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14 Posts
Discussion Starter · #1 ·
I have an 05 tb lt 4.2 and when I try to start the truck nothing happens. When the key is on it says service brake system and the door bell is going off rapidly. And the dash lights are flashing. When you try to crank it, nothing! The battery isn't dead and I've been driving it just fine the past few months with no brake issues? Any ideas on what is going on here?
 

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2005 chevy trailblazer_lt
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14 Posts
Discussion Starter · #3 ·
Yeah the battery is fine. The alternator is good. The starter is good. When the key is on it says to service brake system but I'm more than positive it's fine as well. But when you try to crank it, nothing. No noise no lights on. Just nothing. I'm at a loss on this one
 

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2004 gmc envoy_sle_xl
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1,239 Posts
First guess is the ignition switch, they have been known to case all kinds of electrical problems.
 

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2004 chevy trailblazer_lt
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29 Posts
When I had this issue with similar symptoms and all obvious parts were replaced. It turned out to be the fuse box under the hood which I had to get GM to perform and it was expensive.
 
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