Because the 2008 Chevrolet 2500 Duramax has an OEM integrated brake controller, I do not have any information on how many axles the controller can support. It sounds to me like the person at the garage may not be doing his research on their trailer brake control system, but it is possible that the factory system cannot support more than 4 brake assemblies or 2 axles with trailer brakes. If I were in your position, I would contact Chevrolet directly to try and get information about how many... view full answer...
When just the turn signals are not working on the trailer, it is a bit of a strange situation because the brake lights and turn signals are on the same circuit. So, if the turn signals or brake lights are working then the other function should be as well. But there are situations when this can occur, for example on a vehicle that has combined brake and turn signals but also has a dedicated brake light wire.
If your Sidekick has combined brake and turn signals, then you would attach the... view full answer...
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