Scheduled Maintenance  Services 
Scheduled Maintenance Services 
This  part  tells  you  the  maintenance  services  that  you  should  h\
ave  done  and 
the  times  you  should  schedule  them.  Your 
GM dealer  knows  your  vehicle  best 
and  wants  you  to  be  happy  with  it. 
If you  go  to  your  dealer  for  your  service 
needs,  you’ll  know  that  GM-trained  and  supported  service  peop\
le  will  perform 
the  work  using  genuine  GM  parts. 
These  schedules  are  for  vehicles  that: 
carry  passengers  and  cargo  within  the  recommended  limits.  You will  find 
these  limits  on  your  vehicle’s  Certification  Label.  See  “L\
oading  Your 
Vehicle”  in the  Index. 
are  driven  on  regular  road  surfaces,  and  within  legal  driving  \
limits. 
are  driven  off-road  in the  recommended  manner.  See  the  index  Under 
use  the  recommended  fuel.  See  “Fuel”  in  the  Index. 
“Off Road  Driving  With  Your  Four  Wheel  Drive  Vehicle.” 
Selecting The Proper Maintenance  Services 
To find the  proper  maintenance  schedule  for  your  vehicle,  you  must  know\
  two 
things.  What  engine  your  vehicle  has,  and  how  you  use  your  ve\
hicle.  Your 
engine  type  will  tell  you  which  chart  to use,  and  your  driving  conditions  will 
tell  you  which  schedule  to  use.  The  charts  are  found  later  in this  section. 
Selecting  the  Proper Maintenance Chart 
Your  engine  type  (Gasoline  or  Diesel)  and  its  emissions  classification  (L\
ight 
Duty 
or Heavy  Duty  Emissions)  will  tell  you  which  maintenance  chart  to use. 
Find  your  Vehicle  Identification  Number  (VIN),  and 
look at  the  eighth  character 
to  see  what  your  engine  code  is.  Then  use  the  following  Engine  Emissions 
Classifications  table 
to find  your  emissions  classification. 
Your  VIN  is  on  the  plate on the  top  left  corner  of  your  instrument  panel, 
the  Certification  Label  and  on the  Service  Parts  Identification  Label.  See 
“Vehicle  Identification  Number”  in the  Index. 
Certification  Label  to see  what  your  Gross  Vehicle  Weight  Rating 
(GVWR)  is.  See  “Loading  Your  Vehicle”  in the  Index. 
If your  engine  has  more  than  one  emissions  classification, look at  your 
7-4 
ProCarManuals.com