If your trailer is equipped with a braking system, make sure it conforms to your state’s regulations and that it is properly installed and operating correctly.
If your trailer weight exceeds the maximum allowed weight without trailer brakes, then the trailer will also require its own brakes as well. Be sure to read and follow the instructions for the trailer brakes so you’ll be able to install, adjust and maintain them properly.
• Don’t tap into or modify your vehicle's brake system.
WARNING - Trailer brakes
Do not use a trailer with its own brakes unless you are absolutely certain that you have properly set up the brake system. This is not a task for amateurs. Use an experienced, competent trailer shop for this work.
Adding equipment to or modifying your air bag-equipped vehicle
If you modify your vehicle by changing your vehicle's frame, bumper system, front
end or side sheet metal or ride height, this may affect the operation of your vehicle's
air bag system. ...
Troubleshooting
Diagnosis Of Immobilizer Faults
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Communication between the ECM and the SMARTRA.
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Function of the SMARTRA and the transponder.
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Data (stored in the ECM related to the i ...