Black plate (16,1)Cadillac Escalade/Escalade ESV Owner Manual - 2013 - CRC 2nd Edition - 10/9/125-16 Instruments and ControlsCharging System LightThis light comes on briefly when theignition key is turned to START, butthe engine is not running, as acheck to show it is working.If it does not, have the vehicleserviced by your dealer.The light should go out once theengine starts. If it stays on,or comes on while driving, therecould be a problem with thecharging system. A charging systemmessage in the Driver InformationCenter (DIC) can also appear. SeeBattery Voltage and ChargingMessages on page 5‑29 for moreinformation. This light could indicatethat there are problems with agenerator drive belt, or that there isan electrical problem. Have itchecked right away. If the vehiclemust be driven a short distance withthe light on, turn off accessories,such as the radio and airconditioner.If the vehicle is a hybrid, see thehybrid supplement for moreinformation.MalfunctionIndicator LampA computer system called OBD II(On-Board Diagnostics-SecondGeneration) monitors the operationof the vehicle to ensure emissionsare at acceptable levels, helping tomaintain a clean environment. Themalfunction indicator lamp comeson when the vehicle is placed inON/RUN, as a check to show it isworking. If it does not, have thevehicle serviced by your dealer. SeeIgnition Positions on page 9‑22.If the malfunction indicator lampcomes on while the engine isrunning, this indicates that the OBDII system has detected a problemand diagnosis and service might berequired.Malfunctions often are indicated bythe system before any problem isapparent. Being aware of the lightcan prevent more serious damageto the vehicle. This system alsoassists the service technician incorrectly diagnosing anymalfunction.Notice: If the vehicle iscontinually driven with this lighton, the emission controls mightnot work as well, the vehicle fueleconomy might not be as good,and the engine might not run as