Black plate (63,1)Cadillac DTS Owner Manual - 2011AUTOMATIC LIGHT CONTROL OFFThis message displays when the automatic headlampsare turned off. See Exterior Lamps on page 4‑23 formore information.AUTOMATIC LIGHT CONTROL ONThis message displays when the automatic headlampsare turned on. See Exterior Lamps on page 4‑23 formore information.BATTERY SAVER ACTIVEThis message displays when the system detects thatthe battery voltage is dropping beyond a reasonablelevel. The battery saver system starts reducing certainfeatures of the vehicle that you may be able to notice.At the point that the features are disabled, this messageis displayed. It means that the vehicle is trying to savethe charge in the battery.Turn off all unnecessary accessories to allow thebattery to recharge.The normal battery voltage range is 11.5 to 15.5 volts.You can monitor battery voltage on the DriverInformation Center (DIC) by pressing the trip/fuel buttonuntil BATTERY VOLTAGE is displayed.CHANGE ENGINE OIL SOONThis message displays when service is required foryour vehicle. See your dealer. See Engine Oil onpage 6‑15 and Scheduled Maintenance on page 7‑3for more information.When you reset the CHANGE ENGINE OIL SOONmessage by clearing it from the display, you still mustreset the engine oil life system separately. For moreinformation on resetting the engine oil life system, seeEngine Oil Life System on page 6‑19.CHECK TIRE PRESSURE or ADD AIRTO TIREOn vehicles with the Tire Pressure Monitor System(TPMS), this message displays when the pressure inone or more of the vehicle's tires is low. This messagealso displays LEFT FRONT, RIGHT FRONT, LEFTREAR, or RIGHT REAR to indicate which tire needs tobe checked. The low tire pressure warning light will alsocome on. See Tire Pressure Light on page 4‑52. If atire pressure message appears on the DIC, stop assoon as you can. Have the tire pressures checked andset to those shown on the Tire Loading Informationlabel. See Tires on page 6‑48, Loading the Vehicle onpage 5‑18, and Inflation - Tire Pressure on page 6‑57.4-63