chapter 8 — emergency strategies Vehicles with low tire  pressure or worn tread are  more likely to hydroplane. To prevent hydroplaning:  Going through deep water can stall your vehicle and can even  damage the engine or transmission. Consider turning back  and going another way if you are faced with water across  the roadway. If you can’t avoid the section of roadway, drive  through very slowly. After leaving the water, lightly apply the  brakes for a short distance to dry them. Moving water that is  deeper than half a metre can carry a car away. Ice and snow can cause you to lose traction very quickly. Lack  of traction causes the wheels to spin when accelerating and to  lock when braking. You can easily lose control of the steering.  In winter, temperatures can change quickly, causing  unpredictable road traction. Temperatures near freezing are  more dangerous than colder temperatures, although the road  may look the same, because ice can form unexpectedly and  may not be visible. 121 Ice and snow  Deep water  Strategies: preventing/handling hydroplaning • Check your tires for proper tread and inflation.  • Scan ahead for large puddles.  • Reduce your speed, especially during heavy rain. If hydroplaning happens:  • Decelerate and drive straight. Never brake. Layer of water