2009 Jeep Grand Cherokee Owner Manual SRT8 - Page 384

382 MAINTAINING YOUR VEHICLE BULB REPLACEMENT High Intensity Discharge Headlights (HID) - If Equipped The headlights are a type of high voltage discharge tube. High voltage can remain in the circuit even with the headlight switch off and the key removed. Because of this, you should not attempt to service a headlight bulb yourself. If a headlight bulb fails, take your vehicle to an authorized dealer for service. NOTE: On vehicles equipped with High Intensity Discharge Headlights (HID), when the headlights are turned on, there is a blue hue to the lights. This diminishes and becomes more white after approximately 10 seconds, as the system charges. Headlight 1. Open the hood. 2. Turn the low or high beam bulb one-quarter turn counterclockwise to remove from housing. WARNING! A transient high tension occurs at the bulb sockets of High Intensity Discharge (HID) headlights when the headlight switch is turned ON. It may cause serious electrical shock or electrocution if not serviced properly. See your authorized dealer for service.