Wheels, tyres 117Wheels, tyres TyresSee pag e 167 for suitable ty res andrestrictions.Factory-fitted tyres are matched to thecha ssis and offer optimum d riv ing c om fortand safety.Changing tyre/wheel typeBefore switching to different tyres orwheels, seek advice on technicalpossibilities. We recommend that youconsult y our Va ux ha ll Authorised Repairer,who will be able to advise y ou of anynecessary mod ifications.If tyres of a different size to those fitted atthe factory are used (this includes wintertyres), the electronic speedometer m aypossibly need to be reprogrammed toensure that the speed d isplay ed is correct.Fitti ng new tyr esN ew ty res should be fitted in pairs, or forpreference in sets. Mak e sure that bothtyres on an axle arez the same siz ez the same designz the same makez and have the same tread pattern.Tyre inflation pressureC heck ty re pressures, including the sparewheel, a t least every 14 da ys and prior toany long journey . The ty res should bechecked when cold. Don't forget to checkthe spare.Tyre pressures - see page 167.Tyres ... ..... .... .... ..... .... ..... .... ..... .... .... ..... 117Changing ty re/w heel ty pe..... .... .... ..... 117Tyre inflation pressure.. .... ..... .... .... ..... 117Tyre condition, wheel cond ition ... ..... 118Winter tyres 3 . ..... .... ..... .... ..... .... .... ..... 120Tyre chains 3 .. ..... .... ..... .... ..... .... .... ..... 1219 WarningUse of unsuitab le tyres or wheels m aylead to accidents and render the vehicleunroa dworthy .9 Warnin gWe recom mend that you consult yourVauxhall Authorised Repa irer to have thetyres replaced. Your Vauxhall AuthorisedRepairer knows the legal reg ulationsconc erning the disposa l of tyres andtherefore protects the env ironment andyour health.