Black plate (18,1)Cadillac SRX Owner Manual (Include Mex) - 20125-18 Instruments and ControlsCharging System LightThe charging system light comes onbriefly when the ignition is turnedon, but the engine is not running, asa check to show the light is working.The light turns off when the engineis started. If it does not, have thevehicle serviced by your dealer.If the light stays on, or comes onwhile driving, there may be aproblem with the electrical chargingsystem. Have it checked by yourdealer. Driving while this light is oncould drain the battery.When this light comes on, theDriver Information Center (DIC) alsodisplays a message.See Battery Voltage and ChargingMessages on page 5‑33.If a short distance must be drivenwith the light on, be sure to turn offall accessories, such as the radioand air conditioner.MalfunctionIndicator LampA computer system called OBD II(On-Board Diagnostics-SecondGeneration) monitors the operationof the vehicle to ensure emissionsare at acceptable levels, to producea cleaner environment. This lightcomes on when the vehicle isplaced in Service Only Mode, as acheck to show it is working. If itdoes not, have the vehicle servicedby your dealer. See IgnitionPositions on page 9‑18 for moreinformation.If the malfunction indicator lampcomes on and stays on while theengine is running, this indicates thatthere is an OBD II problem andservice is required.Malfunctions often are indicated bythe system before any problem isapparent. Being aware of the lightcan prevent more serious damageto the vehicle. This system assiststhe service technician in correctlydiagnosing any malfunction.