engaging and securing a support surface 14 such as an exterior surface of a vehicle or the like an adjustable support post 16 is removably coupled to the mounting means 12 and is supported thereby in a substantially orthogonal orientation relative to the support surface 14 a rectangular sign 18 is coupled to the adjustable support posts 16 and supported in a vertical orientation thereby for viewing by a passing motorist or the like preferably the present invention 10 utilizes a pair of spaced mounting means 12 supporting a spaced pair of adjustable support posts 16 such that the rectangular sign 18 is supported at respectively opposed lateral edges thereof as illustrated in fig4 the sign 18 may include a red cross for requesting an ambulance as at 20 a blue star for requesting police as at 22 a red fire engine for requesting the fire department as at 24 or a yellow truck for requesting a tow truck as at 26 for example by this structure any one of a plurality of rectangular signs 18 may be engaged as shown in fig1 to the support posts 16 and mounting means 12 to support the same in a position for viewing whereby a passing motorist or the like will assist the disabled vehicle as best illustrated in fig2 the mounting means 12 preferably comprises a suction cup 28 which can be releasably coupled to the support surface 14 in a well understood manner a mounting boss 30 is secured to the suction cup.