Roof rack, caravan and trailer towing122Roof rack, caravanand trailer towingRoof racks 3For reasons of safety and to avoiddamaging the roof, we recommend thatyou use the Vauxhall roof rack systemrelea sed for your vehic le. Y our VauxhallAuthorised Repairer w ill be hap py toadvise y ou.Note: The front roof rack fixing pointsloca ted a bove the cab area a re forinstallation of the full roof rack system onlyand must not be used to attach roof bars.Driv ing hints - see page 95.Towing equipment 3If the v ehicle is not equip ped with a trailerhitch, we recommend having thisretrofitted by a Vauxhall AuthorisedRepairer, who will ad vise you on anypossible towed load increases. Y ourVauxhall Authorised Repairer hasinstructions on how to install the trailerhitch and making any changes to thevehicle that are need ed that a ffect thecooling system or other equip ment.Mounting dimensions of towing equipment- see page 171.Towi ng eq uipment aud ible wa rning 3For vehicles fitted with towing equipment 3when connected to a caravan or trailer thepitch of the audible wa rning changes uponoperating the turn signal lights. The pitchof the aud ible wa rning w ill cha nge if thecarav an/trailer or towing vehicle turnsignal light fails.Caravan/trailer loads 1)The permissib le carav an/trailer load s a revehicle a nd engine-dependent max imumva lues whic h must not be exceeded. Theactual caravan/trailer load is the differencebetween the ac tual gross weig ht of thecarav an/trailer and the actual c ouplingsocket loa d with the ca ra van/trailercoupled .When the caravan/tra iler load is beingchecked , therefore, only the ca ra van/trailerwheels - and not the jock ey wheel - m ust b estanding on the weighing apparatus.Roof racks 3 .... ..... .... ..... .... ..... .... .... ..... 122Towing eq uipm ent 3 .... .... ..... .... .... ..... 122Ca ra van/trailer loa ds ... .... ..... .... .... ..... 122Coupling socket loa d.... .... ..... .... .... ..... 123Rear axle load during towing ... .... ..... 123Tyre inflation pressure.. .... ..... .... .... ..... 123Driving characteristics, towing tips ... 124Starting on inclines .. ..... .... ..... .... .... ..... 1249 WarningDisregard of the instructions may lead toinjuries or endanger life. Vehiclepassengers should be informedaccordingly.1) Ob serve n atio nal regula tions.