Exterior

The ATS looks good on the road. You never can tell for sure at an auto show, where I thought the headlights were too slit-like, and I wasn't sure about the hump in the trunk lid, accented as it is by the combination spoiler/brake light. I'm still not sure about the latter, but it's not bad with certain exterior colors. If anything, Cadillac could have taken the design further; it looks conservative compared with the CTS' giant grille and flared fenders.

    See also:

    LED Lighting
    This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer. ...

    Map Data Updates
    The navigation map database is stored on a compact flash card. It is usable only in this type of navigation system, and will not function in other electronic devices. The map in the vehicle was ins ...

    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 v ...