2010 Cadillac CTS Owner's Manual - Page 351

Vehicle Care Relays LO BEAM (W/O HID) LT DRL (HID) PWR/TRN REAR DEFOG RT DRL (HID) SPARE STRTR WPR WPR HI Usage Low-Beam (without High Intensity Discharge), Left Daytime Running Lamp (High Intensity Discharge) Powertrain Rear Defogger Right Daytime Running Lamp (High Intensity Discharge) Spare Starter Windshield Wiper Windshield Wiper High Speed Relays FUEL/DR/ RELSE LCK Usage Not Used Lock Relays MRKR/LP Usage Not Used 9-51 Rear Compartment Fuse Block (CTS) The rear compartment fuse block is located on top of the battery, on the right side of the trunk. The battery access door must be removed to access the fuse block. LT/POS/LP Left Position Lamp