Hydroplaning 
.-- 
Thr 
-W 
Hydroplaning is dangerous. 
So 
much water can build up 
under your tires that they can actually ride on the 
water. This can happen 
if 
the road is wet enough and 
you’re going fast enough.  When  your  vehicle is 
hydroplaning, it has little or no contact with the road. 
Hydroplaning doesn’t happen often. But it can 
if 
your 
tires do not have much tread or 
if 
the pressure in one or 
more is low. It can happen 
if 
a  lot  of water is standing 
on the road. 
If 
you can see reflections from trees, 
telephone poles or  other  vehicles,  and raindrops 
“dimple”  the  water’s surface, there could be 
hydroplaning. 
Hydroplaning usually happens at higher speeds. 
There just isn’t a hard and fast rule about hydroplaning. 
The best advice is to slow  down  when  it is raining. 
Driving Through Deep Standing Water 
Nofice: 
If 
you  drive  too  quickly  through  deep 
puddles  or  standing water,  water  can  come  in 
through  your  engine’s  air  intake  and  badly  damage 
your  engine. Never drive  through  water  that 
is 
slightly  lower  than  the  underbody  of  your  vehicle. 
If  you can’t  avoid  deep  puddles  or  standing 
water,  drive  through  them  very  slowly. 
~  Flowing  or  rushing  water  creates  strong  forces. 
~  If  you  try  to  drive  through  flowing water, 
as 
you 
might at 
a 
low water crossing,  your  vehicle 
can  be  carried away. 
As 
little as 
six 
inches of 
flowing  water  can  carry away a  smaller 
vehicle.  If this happens,  you  and  other  vehicle 
occupants  could  drown. Don’t ignore  police 
warning  signs,  and  otherwise be very  cautious 
about  trying  to  drive  through  flowing water. 
9 
e 
Some  Other 
Rainy 
Weather  Tips 
Turn on your  low-beam  headlamps 
- 
not  just  your 
parking lamps -to  help  make  you  more  visible 
to  others. 
Besides slowing down,  allow  some  extra  following 
distance. And be especially  careful  when  you  pass 
another vehicle. Allow  yourself  more  clear  room 
ahead, and be prepared to  have  your  view  restricted 
by road spray. 
Have good tires with proper tread depth. 
See 
Tires 
on 
page 
5-60. 
9 
4-20