Abstract: A probe for achieving entry into a locked vehicle cab, includes an integrated light which can emit a bright directed beam from its actuating end to facilitate locating such end onto or against a chosen door lock release mechanism. The probe is a completely independent unit, comprising an appropriately shaped and relatively stiff rod (preferably tubular), having a tip at the insertion end of the rod including an LED or comparable small source of light. A battery pack or comparable energy source is fitted to the probe, preferably incorporated into the probe handle which remains exterior of the vehicle door during use. In the preferred embodiment electrical conductors are incorporated in (or pass through) the rod and a switch is located on the probe handle to control application of electrical energy to the light source.