GMC 2003 Envoy - Manual (Page 264)

Driving Efjd 1afi( through large water puddtas or avgn
going ihroogh some car washes can cause problems,
too. The water may al+ect your brakes. Try io avoid
puddles. But ii you can't, try lo slow down belore you
hit Therrr
Wet brakes can cause acctdents. They won't
work as well in a quick stop and may cause
pulling to one side. You could lose control of
the vehicle.
After driving through a large puddle of water
or a car wash, apply your brake pedal lightly
until your brakes work normally.
Hydroplaning
Hydroplaning is dangerous. So much water can buiid up
under yaur lires ihal they can actually ride on the
water. This can happen If the road is we1 enough and
you're going fast enough. When your vehicle la
hydroplaning, ¡1 has little or no contacl with the noad.
Hydroplaning doesn't happen often^ But It can if your
tires do not have miKih traad or ii the pressure in one or
more is low. Il can happert if a tot of water is slanding
on the road.
II you car^ See retlectlcos Irom trees,
telephone poles or other vehicles, and raindrops
"dimple" ihe water's surface, thene could he
hydroplaning.
Hydroplariing usually happens al higher speeds.
There jusi isn'l a hard and fast rule about hydroplaning.
The host advice rs to slow down when i1 is raining.
Driving Through Deep Standing Water
Notice: H you drive too quickly through deep
puddles or standing watery water can come in
through your engine's air intake and badly damage
your engine. Mover drive through walor that is
slightly lower than the underbody Ol yt^ur vehicle.
If you can't avoid deep puddfes or standing
water, drive through them very slowly.
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