You have a voltmeter unless you have the supercharged engine.

When the ignition is running, the gage shows the condition of the charging system. Readings between the shaded warning zones indicate the normal operating range. Readings in the shaded warning zones indicate a possible problem in the electrical system.

On vehicles with the systems monitor, the CHECK GAGES light will also come on, and a warning chime will sound if there is a problem in the electrical system. Have your vehicle serviced immediately.

On vehicles with a DIC, a CHECK CHARGE SYSTEM message will be displayed and a warning chime will sound if there is a problem in the electrical system. Have your vehicle serviced immediately. See DIC Warnings and Messages for more information.