Chevrolet Silverado 4500HD 2022 Manual page 242

State or local regulations may require
trailers to have their own braking system if
the loaded weight of the trailer exceeds
certain minimums that can vary from state
to state. Read and follow the instructions for
the trailer brakes so they are installed,
adjusted, and maintained properly. Never
attempt to tap into your vehicle's hydraulic
brake system. If you do, both the vehicle
anti-lock brakes and the trailer brakes may
not function, which could result in a crash.
Auxiliary Battery
If equipped, the vehicle's auxiliary battery
can be used to supply electrical power to
additional equipment.
Caution
To prevent draining the auxiliary battery,
always turn off electrical equipment
when not in use and do not use any
equipment that may exceed the
maximum amperage rating of 30 amps.
Trailer Wiring Harness
Basic Trailer Wiring
Heavy-Duty Trailer Wiring Harness Package
If equipped, the trailer wiring harness, with
a 7-pin connector and a 4-pin connector, is
mounted on the frame at the rear of the
vehicle.
Driving and Operating
1. Ground
2. Taillamps
3. Left Turn/Brake
4. Right Turn/Brake
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