Maintenance When Trailer Towing
The vehicle needs service more often when pulling a trailer. See this manual's Maintenance Schedule or Index for more information. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, axle lubricant, belts, cooling system, and brake system. It is a good idea to inspect these before and during the trip.
Check periodically to see that all hitch nuts and bolts are tight.
See also:
Engine Cover
Engine Cover (CTS)
To remove:
1. Remove the oil fill cap (A).
2. Raise the right front corner of
the engine cover (B) to release it
from the ball stud.
3. Pull the engine cover (B) forward
...
Cellular and GPS Antennas
Avoid placing items over or near
the antenna to prevent blocking
cellular and GPS signal reception.
Cellular reception is required for
OnStar to send remote signals to
the vehicle. ...
How to Check Lubricant
To get an accurate reading, the vehicle should be on a level surface.
A. Drain Plug
B. Fill Plug
If the level is below the bottom of the fill plug hole, located on the transfer
case, some lubri ...