Buick 2007 Terraza Owner's Manual page 396

Maintenance When Trailer Towing
Your vehicle will need service more often when
you are pulling a trailer. See the Maintenance
Schedule for more on this. Things that are
especially important in trailer operation are
automatic transaxle fluid, engine oil, belts, cooling
system, and brake system. Each of these is
covered in this manual, and the Index will help
you find them quickly. If you are trailering, it is a
good idea to review these sections before you
start your trip.
396
Check periodically to see that all hitch nuts and
bolts are tight.
Trailer Wiring Harness
Your vehicle may have a trailer wiring harness
package located in the glove box. It can be
connected from the rear of your vehicle to your
trailer. Contact your dealer for more information.