Chevrolet GMC Yukon Bedienungshandbuch PDF herunterladen (Seite 11)

TRAILERING ON THE ROAD

SAFETY CHAINS Always attach safety chains between your vehicle and your trailer and cross them under the tongue of the trailer so that the tongue will

be less likely to drop if the trailer should separate from the hitch. Leave enough slack in the chains so you can corner without the chains impeding the

movement of the trailer. Do not allow safety chains to drag on the ground.

LOADING YOUR TRAILER Load your trailer to attain a 10-15 percent tongue weight. A good rule of thumb is to distribute 60 percent of the load over the

front half of the trailer and evenly from side to side. Loads sitting either too far forward or too far back in the trailer can create unstable trailering

conditions—such as trailer sway—at highway speeds and during heavy braking. Once the trailer has been loaded and the weight is distributed properly, all

cargo should be secured to prevent the load from shifting.

SAFETY CHECKLIST Before starting out on a trip, double-check the hitch and platform, the hitch nuts and bolts, mirror adjustments, safety chains and

vehicle and trailer lights. Make sure that a sway-control device is installed, if required, and that the device is working properly (see charts on pages 13-19).

Check tire pressure on both the tow vehicle and the trailer. If your trailer has electric brakes, test them by manually engaging the brake controller while the

vehicle is moving slowly. Check to see that the breakaway switch, if available, is connected and functioning properly. Finally, make certain that all loads are secure.

ACCELERATING/BRAKING Avoid overworking your engine when trailering by applying gradual pressure on the accelerator. Allow your vehicle to safely

reach a comfortable driving speed. Give yourself extra time and room when merging onto highways. Braking when pulling a trailer requires extra distance.

Allow ample room to come to a safe stop. A good measure for deter mining a safe following distance is to allow one vehicle and trailer length between you

and the vehicle ahead for every 10 mph of speed. When braking, use firm, steady pressure on the brake pedal.

CONTROLLING TRAILER SWAY Most GMC vehicles feature Trailer Sway Control to help keep you and your trailer heading in the same direction.

The system uses StabiliTrak sensors to detect a swaying trailer, applying both the vehicle’s and trailer’s brakes (if properly equipped) to bring it back

in line. Sway refers to instability of the trailer relative to the trailer vehicle and often results from improper weight distribution, excessive speed or overloading.

Other factors can cause sway: crosswinds, poor vehicle maintenance and road conditions. Trying to steer out of sway likely will make it worse. Speed is a

major contributor to trailer sway, so you need to slow the vehicle

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braking, however, could lead to a jackknife or other loss of control. To control sway:

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Hold the steering wheel as steady as possible.

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Release the accelerator but do not touch the brake pedal.

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Activate electric trailer brakes (if equipped) by hand, until the sway condition stops.

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Use the vehicle brakes to come to a complete stop.

You should then pull your vehicle to the side of the road and attempt to determine the cause of the instability. Check the cargo load for shifting and

improper weight distribution. Check tire pressure on the tow vehicle and trailer, and the condition of the suspension and shocks. If the sway was caused by

strong winds, wait for conditions to improve before continuing your trip. Finally, some trailers can be equipped with anti-sway devices. Contact the

manufacturer of your trailer for availability.

BEFORE YOU TRAILER

ON THE ROAD

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