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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1686
Experience:  GM Grand Master Technician 2007. 14 year experience.
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GMC 2500 Series: I have a service brake system light on on

Customer Question

I have a service brake system light on on my dash. Brake light on, abs on chimes at me when I first start it service brake system them a bunch of ding ding dings about 15 seconds worth I also have a code p0700 transmission control system (mil request) on my bully dog programmer
This is on a 2007 GMC 2500HD Classic
Submitted: 2 years ago.
Category: GMC
Expert:  GM Bob replied 2 years ago.
Hello my name is***** can help.The brake system may just be going into disable mode. Because you have a trans code set.You need to get the code read from the trans control module. The P0700 is just telling the ECM you have a trans code. Please get back with meThank you