GMC Yukon Denali/Yukon XL Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9159308) - 2016 - crc - 6/2/15
348
Service and Maintenance
(4)
Do not directly power wash the
transfer case output seals. High
pressure water can overcome the
seals and contaminate the transfer
case fluid. Contaminated fluid will
decrease the life of the transfer
case and should be replaced.
(5)
Or every five years, whichever
comes first. See
Cooling System
0
270
.
(6)
Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7)
Or every three years, whichever
comes first.