2010 Jeep Grand Cherokee Owner's Manual - Page 335
2010 Jeep Grand Cherokee Manual
Page 335 highlights
334 STARTING AND OPERATING Towing Requirements - Tires − Do not attempt to tow a trailer while using a compact spare tire. replacement procedures. Replacing tires with a higher load carrying capacity will not increase the vehicle's GVWR and GAWR limits. Towing Requirements - Trailer Brakes − Proper tire inflation pressures are essential to the safe and satisfactory operation of your vehicle. Refer to − Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. "Tires - General Information" in "Starting and Operating" for proper tire inflation procedures. This could cause inadequate braking and possible personal injury. − 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 electronically− Check for signs of tire wear or visible tire damage actuated brakes. When towing a trailer equipped with before towing a trailer. Refer to "Tires - General a hydraulic surge-actuated brake system, an electronic Information" in "Starting and Operating" for proper brake controller is not required. inspection procedure. − Trailer brakes are recommended for trailers over − When replacing tires, refer to "Tires - General Infor1,000 lbs (454 kg), and required for trailers in excess of mation" in "Starting and Operating" for proper tire 2,000 lbs (907 kg).