In today's episode of Car Stuff: did You Know? Motormouth digs into the dashboard mysteries and winter gremlins that catch drivers off guard-especially when the temperatures crater. We cover:

1) TPMS Truths: why your tire pressure monitoring system lights up in the cold-and why you must pull over and check for tread damage or a slow leak instead of driving on and hoping for the best. ( Looking at you, Pops! )

2) Boosting a Cold, Dead Battery:What causes winter battery failure, how to safely boost your vehicle, and how to avoid being stranded in the first place.

3) Fuel Economy & Winter Prep: How frozen fuel lines and iced-up fuel filters happen-and the simple steps you can take today to prevent a snow day breakdown.

4) Smart winter driving reminders for the weeks ahead.

Whether you're dealing with sudden cold s ...