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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (12 Volt Battery) >> Symptom Troubleshooting >> Low or Dead Battery

Low or Dead Battery

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: A battery might be discharged under these conditions:
  • Driving a vehicle 6 miles (10 km) or less per day.
  • Leaving a vehicle parked without removing the ignition key from the ignition switch.
  • Leaving the vehicle idling for excessive periods of time with the headlights on. This prevents the MICU and the gauge control module from entering the sleep modes, which causes excessive parasitic draw.
  • Parking the vehicle with the hood unlatched prevents the security system from arming, which causes excessive parasitic draw.
  1. Check the battery (see 12 VOLT BATTERY TEST ). Recharge or replace the battery if necessary.
  2. Start the engine, and check the charging system indicator.

    Does the charging system indicator go off with the engine running? 

    YES  -Go to step 3.

    NO  -Do the Charging System Indicator Stays On symptom troubleshooting (see CHARGING SYSTEM INDICATOR STAYS ON, NO DTCS SET ).

  3. Check the following items:
    • The hazard switch is off.
    • The individual map light and ceiling light switches are off.
    • All of the doors, hood, and hatch are closed.
    • The brake pedal is not depressed.

    Are all check items OK? 

    YES  -go to step 4.

    NO  -Turn off the switch, and check the parasitic draw (see PARASITIC DRAW CHECK ).

  4. Lock the doors with the remote transmitter LOCK button. Make sure the security alarm system arms by confirming that the security indicator is flashing.

    Is the security alarm system armed? 

    YES  -Go to the symptom troubleshooting of the security alarm system (see SYMPTOM TROUBLESHOOTING ).

    NO  -Go to step 5.

  5. Check the following items with the ignition key removed from the ignition switch:
    • The brake lights are off when the brake pedal is not pressed.
    • The cargo area light is off with the hatch closed.
    • The radiator and condenser fans are not running.
    • The audio (including navigation) is off.
    • There is no operating sound from the VSA modulator-control unit.
    • The rear window defogger and the power mirror defoggers are off.

    Are all check items OK? 

    YES  -Check the parasitic draw (see PARASITIC DRAW CHECK ).

    NO  -Troubleshoot and repair the affected circuits.

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