2012 Jeep Grand Cherokee User Guide - Page 134
2012 Jeep Grand Cherokee Manual
Page 134 highlights
MAINTAINING YOUR VEHICLE EXTERIOR BULBS LIGHT BULBS - Exterior Tail, Stop, Turn Lamp Liftgate Backup Lamps Center High-Mounted Stop Lamp (CHMSL) Fog Lamp - If Equipped Front Park/Turn Signal Front Side Marker, License Lamp Headlamp - High Intensity Discharge (HID) Headlamp - Low Beam Headlamp - High Beam Bulb Number 3057 921 (W16W) LED (*) PSX24W 7444NA W5W D1S - Serviced at Authorized Dealer (**) H11 9005 * CHMSL is not serviceable. It is a LED lamp. To replace the LED, the entire CHMSL assembly must be replaced. ** The headlamps are a type of high-voltage discharge tube. High voltage can remain in the circuit even with the headlamp switch off and the Key Fob removed. Because of this, you should not attempt to service a headlamp bulb yourself. If a headlamp bulb fails, take your vehicle to an authorized dealer for service. 132