2010 Cadillac DTS Owner's Manual - Page 376

Professional Vehicle The proper inflation of the tires on your professional vehicle depends on the type of tires on it. • If your vehicle has P235/60R17 size tires, the cold inflation pressure is 41 psi (284 kPa). • If your vehicle has LT235/60R17E size tires, the cold inflation pressure depends on the vehicle mass and should be determined by the vehicle coach-builder. A Tire and Loading Information label provided by the final stage manufacturer should be attached to the B-pillar on the driver's side of the vehicle. If the final stage manufacturer's label is not present, the coach-builder should be consulted. Do not use the tire pressures indicated on the General Motors label. These tire pressures are for the incomplete vehicle and are not the correct tire pressures for the completed professional vehicle. Operation at inflation pressures below this recommendation may cause your tires to become overloaded. High-Speed Operation { WARNING: Driving at high speeds, 160 km/h (100 mph) or higher, puts an additional strain on tires. Sustained high-speed driving causes excessive heat build up and can cause sudden tire failure. You could have a crash and you or others could be killed. Some high-speed rated tires require inflation pressure adjustment for high speed operation. When speed limits and road conditions are such that a vehicle can be driven at high speeds, make sure the tires are rated for high speed operation, in excellent condition, and set to the correct cold tire inflation pressure for the vehicle load. 6-56