A telescoping steering column assembly of the present invention includes a lower jacket disposed in telescoping relationship within an upper jacket along a longitudinal axes, and a brake supported by the upper jacket for frictional engagement with the lower jacket. The brake presents an inclined surface sloping longitudinally of the jackets. A cam device of the assembly is rotatable into and out of engagement with the inclined surface. The cam device includes a lever to move the brake upwardly, to engage the lower jacket with the upper jacket, and downwardly, to disengage the jackets in different modes of operation of the assembly.