See also:

Engine block heater
WARNING: Failure to follow engine block heater instructions could result in property damage or physical injury. WARNING: Do not use your heater with ungrounded electrical systems or two-pronged ( ...

Driver and passenger airbags
WARNING: Never place your arm or any objects over an airbag module. Placing your arm over a deploying airbag can result in serious arm fractures or other injuries. Objects placed on or over the ai ...

Exceptions
There are several exceptions to the Normal Schedule. They are listed below: Normal vehicle axle maintenance: Rear axles and power take-off (PTO) units with synthetic fluid and light-duty trucks equ ...