2005 Buick Terraza Owner's Manual - Page 182

This message will continue to display for two seconds if it has not been acknowledged when the engine is turned off. It will also re-display for two seconds if the message has been acknowledged, but the condition still exists when the engine is turned off. If the condition still exists, the message will re-appear when the engine is turned on. If this message continues to appear, have the system repaired by your GM dealer as soon as possible to avoid damage to your engine. BATTERY SAVER ACTIVE This message will display when the system detects that the battery voltage is dropping beyond a reasonable level. The battery saver system will start reducing certain features of the vehicle that you may be able to notice. At the point that the features are disabled, this message is displayed. It means that the vehicle is trying to save the charge in the battery. Turn off all unnecessary accessories to allow the battery to recharge. The normal battery voltage range is 11.5 to 15.5 volts. You can monitor the battery voltage by pressing the information button until BATTERY displays. ALL WHEEL DRIVE DISABLED If your vehicle has the all-wheel drive system, this message will display when there is a spare tire on the vehicle, or when the anti-lock brake system warning light comes on, or when the rear differential fluid is overheating. This message will turn off when the differential fluid cools. The all-wheel drive system will be disabled until the compact spare tire is replaced by a full-size tire. If the warning message is still on after putting on the full-size tire, you need to reset the warning message. To reset the warning message, turn the ignition off and then back on again. If the message stays on, see your GM dealer right away. See All-Wheel Drive (AWD) System on page 4-12 for more information. CHANGE OIL SOON This message will display when service is required for the vehicle. See your GM dealer. See Engine Oil on page 5-13 and Scheduled Maintenance on page 6-4 for more information. The CHANGE OIL SOON message is reset by acknowledging the message. The OIL LIFE screen under the gages menu on the DIC must also be reset. See "Oil Life" under DIC Operation and Displays on page 3-46 and Engine Oil Life System on page 5-16. 3-52