Severity: Fix within days. Drive with caution and watch for new symptoms.
The electrical system voltage has dropped below the level the computer expects, which usually means the battery or alternator is not keeping up.
Test the battery and alternator, clean the battery terminals, and check the belt.
The car may stall if the voltage drops further. Turn off extra electrical loads and get the charging system tested soon.
You can drive short distances carefully; watch for worsening symptoms. The car may stall if the voltage drops further. Turn off extra electrical loads and get the charging system tested soon.
The most common causes are: Failing alternator; Weak or dying battery; Corroded battery terminals; Loose or damaged alternator belt; Parasitic drain. A scan tool and a visual check of the parts above is where a technician starts.
Test the battery and alternator, clean the battery terminals, and check the belt.
