Cadillac 2011 Cadillac DTS Owner's Manual

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Black plate (70,1)Cadillac DTS Owner Manual - 2011Different Size Tires and WheelsIf you add wheels or tires that are a different size thanyour original equipment wheels and tires, this mayaffect the way your vehicle performs, including itsbraking, ride and handling characteristics, stability, andresistance to rollover. Additionally, if your vehicle haselectronic systems such as, antilock brakes, tractioncontrol, and electronic stability control, the performanceof these systems can be affected.{ WARNING:If different sized wheels are used, there may notbe an acceptable level of performance and safetyif tires not recommended for those wheels areselected. This increases the chance of a crashand serious injury. Only use GM specific wheeland tire systems developed for the vehicle, andhave them properly installed by a GM certifiedtechnician.See Buying New Tires on page 6‑68 and Accessoriesand Modifications on page 6‑3 for additionalinformation.Uniform Tire Quality GradingQuality grades can be found where applicable onthe tire sidewall between tread shoulder andmaximum section width. For example:Treadwear 200 Traction AATemperature AThe following information relates to the systemdeveloped by the United States National HighwayTraffic Safety Administration (NHTSA), whichgrades tires by treadwear, traction, andtemperature performance. This applies only tovehicles sold in the United States. The grades aremolded on the sidewalls of most passenger cartires. The Uniform Tire Quality Grading (UTQG)system does not apply to deep tread, winter-typesnow tires, space-saver, or temporary use sparetires, tires with nominal rim diameters of10 to 12 inches (25 to 30 cm), or to somelimited-production tires.While the tires available on General Motorspassenger cars and light trucks may vary withrespect to these grades, they must also conformto federal safety requirements and additionalGeneral Motors Tire Performance Criteria (TPC)standards.6-70