See also:

Battery
If the battery is not fully charged during extremely cold weather conditions, the battery fluid may freeze and damage the battery. To maintain maximum efficiency, the battery should be checked ...

Vehicle recovery (freeing a stuck vehicle)
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Under the hood and vehicle
The maintenance items listed here should be checked periodically (for example, each time you check the engine oil or refuel). Battery* Check the fluid level in each cell. It should be between t ...