Safety Chains; Trailer Brakes - Chevrolet Impala 2007 Impala Owner's Manual

Safety Chains

You should always attach chains between
your vehicle and your trailer. Cross the safety
chains under the tongue of the trailer so that the
tongue will not drop to the road if it becomes
separated from the hitch. Instructions about safety
chains may be provided by the hitch manufacturer
or by the trailer manufacturer. Follow the
manufacturer's recommendation for attaching
safety chains and do not attach them to the
bumper. Always leave just enough slack so you
can turn with your rig. And, never allow safety
chains to drag on the ground.
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Trailer Brakes

Does your trailer have its own brakes? Be sure
to read and follow the instructions for the
trailer brakes so you'll be able to install, adjust
and maintain them properly.
•
If your vehicle has anti-lock brakes, do not try to
tap into your vehicle's brake system. If you do,
both brake systems won't work well, or at all.
•
Even if your vehicle doesn't have anti-lock
brakes, don't tap into your vehicle's brake
system if the trailer's brake system will use
more than 0.02 cubic inch (0.3 cc) of fluid from
your vehicle's master cylinder. If it does, both
braking systems won't work well. You could
even lose your brakes.
•
Will the trailer brake parts take 3,000 psi
(20 650 kPa) of pressure? If not, the trailer
brake system must not be used with your
vehicle.
•
If everything checks out this far, then make
the brake fluid tap at the upper rear master
cylinder port. But don't use copper tubing
for this. If you do, it will bend and break off.
Use steel brake tubing.