2007 Buick Terraza Owner's Manual - Page 392

Trailer Brakes If your trailer weighs more than 1,000 lbs (450 kg) loaded, then it needs its own brakes - and they must be adequate. Be sure to read and follow the instructions for the trailer brakes so you will be able to install, adjust, and maintain them properly. Because your vehicle has anti-lock brakes, do not try to tap into your vehicle's brake system. If you do, both brake systems will not work well, or at all. CAUTION: (Continued) Driving with a Trailer {CAUTION: If you have a rear-most window open and you pull a trailer with your vehicle, carbon monoxide (CO) could come into your CAUTION: (Continued) vehicle. You cannot see or smell CO. It can cause unconsciousness or death. See Engine Exhaust on page 141. To maximize your safety when towing a trailer: • Have your exhaust system inspected for leaks, and make necessary repairs before starting on your trip. • Keep the rear-most windows closed. • If exhaust does come into your vehicle through a window in the rear or another opening, drive with your front, main heating or cooling system on and with the fan on any speed. This will bring fresh, outside air into your vehicle. Do not use the climate control setting for maximum air because it only recirculates the air inside your vehicle. See Climate Control System on page 193 or Dual Climate Control System on page 197. 392