VEHICLE CARE 281Warning (Continued). Replace any tyres thathave been damaged byimpacts with potholes,curbs, etc.. Improperly repaired tyrescan cause a crash. Onlythe dealer or an authorisedtyre service centre shouldrepair, replace, dismount,and mount the tyres.. Do not spin the tyres inexcess of 56 km/h(35 mph) on slipperysurfaces such as snow,mud, ice, etc. Excessivespinning may cause thetyres to explode.See Tyre Pressure for High-SpeedOperation 0 285 for inflationpressure adjustment forhigh-speed driving.All-Season TyresThis vehicle may come with all-seasontyres. These tyres are designed toprovide good overall performance onmost road surfaces and weatherconditions. Original equipment tyresdesigned to GM's specific tyreperformance criteria have a TPCspecification code moulded onto thesidewall. Original equipmentall-season tyres can be identified bythe last two characters of this TPCcode, which will be “MS.”Consider installing winter tyres on thevehicle if frequent driving on snow orice-covered roads is expected.All-season tyres provide adequateperformance for most winter drivingconditions, but they may not offer thesame level of traction or performanceas winter tyres on snow or ice-coveredroads. See Winter Tyres 0 281.Winter TyresThis vehicle was not originallyequipped with winter tyres. Wintertyres are designed for increasedtraction on snow and ice-coveredroads. Consider installing winter tyreson the vehicle if frequent driving onice or snow covered roads is expected.See your dealer for details regardingwinter tyre availability and proper tyreselection. Also, see Buying New Tyres0 292.With winter tyres, there may bedecreased dry road traction, increasedroad noise and shorter tread life. Afterchanging to winter tyres, be alert forchanges in the vehicle handling andbraking.If using winter tyres:. Use tyres of the same brand andtread type on all four wheelpositions.. Use only radial ply tyres of thesame size, load range and speedrating as the original equipmenttyres.Winter tyres with the same speedrating as the original equipment tyresmay not be available for H, V, W, Yand ZR speed rated tyres. If wintertyres with a lower speed rating arechosen, never exceed the tyre'smaximum speed capability.