GMC YUKON XL 2003 Manual page 470

37,500 Miles (62 500 km)
0
Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
page 5-62 for proper rotation pattern and additional
information. (See footnote
+.)
0 Rotate tires. See Tire Inspection and Rotation on
45,000
Miles (75 000 km)
0
Inspect engine air cleaner filter if you are driving in
dusty conditions. Replace filter if necessary. An
Emission Control Service. (See footnote f.)
0 Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
page 5-62 for proper rotation pattern and additional
information. (See footnote +.)
0 Rotate tires. See Tire Inspection and Rotation on
50,000 Miles (83 000 km)
0
Change automatic transmission fluid and filter if the
vehicle's GVWR is over 8600 Ibs or if the vehicle is
mainly driven under one or more of these conditions:
-
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
- In hilly or mountainous terrain.
-
When doing frequent trailer towing.
-
Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the fluid and filter at 100,000 miles
( I 66 000 km).
0 Change transfer case fluid.
52,500 Miles (87 500 km)
0 Check readfront axle fluid level and add fluid as
needed. Check constant velocity joints and axle seals
for leaking.
page 5-62 for proper rotation pattern and additional
information. (See footnote
+-)
0 Rotate tires. See Tire Inspection and Rotation on
6-7