Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push an Advisor can run a check., and an Advisor can run a check.

    See also:

    Engine Compartment Overview
    A. Engine Air Cleaner/Filter. B. Power Steering Reservoir and Cap (Under Engine Cover). See Power Steering Fluid. C. Engine Oil Fill Cap. See Engine Oil. D. Engine Oil Dipstick (Out of ...

    Exterior
    The 2011 Escalade ESV was so big it made all the other cars around it feel like an entourage of hangers-on. It has plenty of chrome and shined like an opera singer dressed for the stage and ready ...

    Filling the Tank
    WARNING Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. Turn off th ...