Maintenance when Trailer Towing
The vehicle needs service more often when pulling a trailer. See Maintenance Schedule on page 11‑3. 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:
Climate Control System (With Air Conditioning)
Climate Control System (With Air Conditioning)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning
E. Outside Air
F. Air Recirculation
G. Rear Window Defo ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Towing with a Stability Control System
When towing, the sound of the stability control system might be heard. The system
is reacting to the vehicle movement caused by the trailer, which mainly occurs during
cornering. This is normal wh ...