2014 Jeep Grand Cherokee Owner Manual SRT - Page 443

STARTING AND OPERATING 441 which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition. Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation. DO NOT reduce this normal pressure build up or your tire pressure will be too low. Tire Pressures For High Speed Operation WARNING! High speed driving with your vehicle under maximum load is dangerous. The added strain on your tires could cause them to fail. You could have a serious collision. Do not drive a vehicle loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h). The manufacturer advocates driving at safe speeds and within posted speed limits. Where speed limits or condiRadial Ply Tires tions are such that the vehicle can be driven at high speeds, maintaining correct tire inflation pressure is very WARNING! important. Increased tire pressure and reduced vehicle loading may be required for high-speed vehicle opera- Combining radial ply tires with other types of tires tion. Refer to your authorized tire dealer or original on your vehicle will cause your vehicle to handle equipment vehicle dealer for recommended safe operat- poorly. The instability could cause a collision. Aling speeds, loading and cold tire inflation pressures. ways use radial ply tires in sets of four. Never combine them with other types of tires. 5