2011 GMC Savana 1500 Cargo Owner's Manual - Page 148

5-32 Instruments and Controls Change Compass Zone The vehicle may have this feature. To change the compass zone through the DIC, see Compass on page 5‑4. Calibrate Compass The vehicle may have this feature. The compass can be manually calibrated. To calibrate the compass through the DIC, see Compass on page 5‑4. Blank Display This display shows no information. Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing V (Set/Reset). The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously and clearing the message does not correct the problem. The following are the possible messages and some information about them. If the vehicle has the Duramax Diesel engine, see the Duramax® Diesel manual for more information. Battery Voltage and Charging Messages SERVICE BATTERY CHARGING SYSTEM On some vehicles, this message displays if there is a problem with the battery charging system. Under certain conditions, the charging system light may also turn on in the instrument panel cluster. See Charging System Light on page 5‑20. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Have the electrical system checked as soon as possible. See your dealer. Brake System Messages SERVICE BRAKE SYSTEM This message displays along with the brake system warning light if there is a problem with the brake system. See Brake System Warning Light on page 5‑23. If this message appears, stop as soon as possible