1999 Cadillac DeVille Owner's Manual - Page 143

yellowblue BATTERY VOLTAGE HIGH - 8: This message shows that the electrical charging system is overcharging (more than 16 volts). To avoid being stranded, have the electrical system checked by your dealership. You can reduce the charging overload by using the accessories. Turn on the lamps and radio, set the climate control on AUTO and the fan speed on HI, and turn the rear window defogger on. You can monitor battery voltage on the DIC by pressing the INFORMATION SKIP (SKIP INFO) button. The normal range is 11.5 to 15.5 volts when the engine is running. BATTERY VOLTAGE LOW - 6: This message will appear when the electrical system is charging less than 10 volts or if the battery has been drained. If this message appears immediately after starting, it is possible that the generator can still recharge the battery. The battery should recharge and may take a few hours to do so. Consider using an auxiliary charger to boost the battery after returning home or to a final destination. (Be sure to follow the manufacturer's instructions when recharging the battery.) If this message appears while driving or after starting your vehicle and stays on, have it checked immediately to determine the cause of this problem. To help the generator recharge the battery quickly, you can reduce the load on the electrical system by turning off the accessories. You can monitor battery voltage on the DIC by pressing the INFORMATION SKIP (SKIP INFO) button. The normal range is 11.5 to 15.5 volts. BRAKE VACUUM PROBLEM -108: The circuit in the brake booster vacuum has shorted or is loose when this message appears. Your vehicle may lose power brakes but you will still have the use of manual brakes. The power brakes will not be affected if the problem is caused by a failed sensor. Have your vehicle serviced immediately at your dealership. CHANGE ENGINE OIL - 82: This means that the life of the engine oil has expired and it should be changed within 200 miles (322 km). See "Engine Oil" and "Filter Recommendations" in the Maintenance Schedule booklet. After an oil change, the Oil Life Indicator must be reset. For more information, see "Oil Life Indicator, How to Reset" in the Index. 2-83