GMC 2009 Sierra - Manual (Page 414)

Weatherstrips
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather frequent application may be required.
See Recommended Fluids and Lubricants on page 6-12.
Washing Your Vehicle
The best way to preserve your vehicle’s finish is to
keep it clean by washing it often.
Notice: Certain cleaners contain chemicals that
can damage the emblems or nameplates on
your vehicle. Check the cleaning product label.
If it states that it should not be used on plastic
parts, do not use it on your vehicle or damage may
occur and it would not be covered by the warranty.
Do not wash the vehicle in direct sunlight. Use a
car washing soap. Do not use cleaning agents that are
petroleum based or that contain acid or abrasives,
as they can damage the paint, metal or plastic on your
vehicle. Approved cleaning products can be obtained
from your dealer/retailer. See Vehicle Care/Appearance
Materials on page 5-106. Follow all manufacturers’
directions regarding correct product usage, necessary
safety precautions and appropriate disposal of any
vehicle care product.
Rinse the vehicle well, before washing and after to
remove all cleaning agents completely. If they are
allowed to dry on the surface, they could stain.
Dry the finish with a soft, clean chamois or an all-cotton
towel to avoid surface scratches and water spotting
High pressure car washes may cause water to enter the
vehicle. Avoid using high pressure washes closer
than 12 inches (30 cm) to the surface of the vehicle.
Use of power washers exceeding 1,200 psi (8 274 kPa)
can result in damage or removal of paint and decals.
Cleaning Exterior Lamps/Lenses
Use only lukewarm or cold water, a soft cloth and a
car washing soap to clean exterior lamps and lenses.
Follow instructions under Washing Your Vehicle
on page 5-102.
Finish Care
Occasional waxing or mild polishing of your vehicle by
hand may be necessary to remove residue from the
paint finish. You can get approved cleaning products
from your dealer/retailer. See Vehicle Care/Appearance
Materials on page 5-106.
5-102