Cadillac Escalade Owner Manual (GMNA-Localising-Europe-11374166) -
2018 - crc - 7/14/17
VEHICLE CARE
311
When It Is Time for New
Tyres
Factors, such as maintenance,
temperatures, driving speeds, vehicle
loading, and road conditions affect the
wear rate of the tyres.
Tread wear indicators are one way to
tell when it is time for new tyres.
Tread wear indicators appear when
the tyres have only 1.6 mm (1/16 in)
or less of tread remaining. Some
commercial truck tyres may not have
tread wear indicators.
See
and
for additional
information.
The rubber in tyres ages over time.
This also applies to the spare tyre,
if the vehicle has one, even if it is
never used. Multiple factors including
temperatures, loading conditions, and
inflation pressure maintenance affect
how fast ageing takes place. GM
recommends that tyres, including the
spare if equipped, be replaced after six
years, regardless of tread wear. The
tyre manufacture date is the last four
digits of the DOT Tyre Identification
Number (TIN) which is moulded into
one side of the tyre sidewall. The first
two digits represent the week (01
–
52)
and the last two digits, the year. For
example, the third week of the year
2010 would have a four-digit DOT
date of 0310.
Vehicle Storage
Tyres age when stored normally
mounted on a parked vehicle. Park a
vehicle that will be stored for at least
a month in a cool, dry, clean area
away from direct sunlight to slow
ageing. This area should be free of
grease, petrol, or other substances
that can deteriorate rubber.
Parking for an extended period can
cause flat spots on the tyres that may
result in vibrations while driving.
When storing a vehicle for at least a
month, remove the tyres or raise the
vehicle to reduce the weight from the
tyres.
Buying New Tyres
GM has developed and matched
specific tyres for the vehicle. The
original equipment tyres installed
were designed to meet General
Motors Tyre Performance Criteria
Specification (TPC Spec) system
rating. When replacement tyres
are needed, GM strongly
recommends buying tyres with the
same TPC Spec rating.
GM's exclusive TPC Spec system
considers over a dozen critical
specifications that impact the
overall performance of the vehicle,
including brake system
