2010 Jeep Commander Owner's Manual - Page 332

332 STARTING AND OPERATING − Check the trailer tires for proper tire inflation pres- − An electronically-actuated trailer brake controller is sures before trailer usage. required when towing a trailer with electronicallyactuated brakes. When towing a trailer equipped with − Check for signs of tire wear or visible tire damage a hydraulic surge-actuated brake system, an electronic before towing a trailer. Refer to "Tires-General Inforbrake controller is not required. mation" in this section. − Trailer brakes are recommended for trailers over − When replacing tires, refer to "Tires-General Informa1,000 lbs (454 kg) and required for trailers in excess of tion" in this section. Replacing tires with a higher load 2,000 lbs (907 kg). carrying capacity will not increase the vehicle's GVWR and GAWR limits. CAUTION! Towing Requirements - Trailer Brakes − Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. This could cause inadequate braking and possible personal injury. If the trailer weighs more than 1,000 lbs (454 kg) loaded, it should have its own brakes and they should be of adequate capacity. Failure to do this could lead to accelerated brake lining wear, higher brake pedal effort, and longer stopping distances.