Check for loose battery wires and charging system problems. The charging system is mainly inside the computer under the hood. Loose battery posts and power and ground cables will do this. Make sure the battery isn't weak because it can leave you stranded on a cold day.
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Check the engine computer for fault codes and run a few tests before you have a thousand dollars tied up in a failed repair attempt.
Check for loose battery wires and charging system problems. The charging system is mainly inside the computer under the hood. Loose battery posts and power and ground cables will do this. Make sure the battery isn't weak because it can leave you stranded on a cold day.