Chevrolet 2000 Tahoe Bedienungshandbuch PDF herunterladen (Seite 5)

The information below is intended to give you some

details about the trailer ratings on your vehicle and a

way to ensure that the vehicle you use can handle the

load you want to pull.

TRAILER WEIGHT RATINGS AND GROSS COMBINATION

WEIGHT RATINGS Chevrolet engineers perform extensive

testing of acceleration, handling, braking, and thermal and

structural performance to determine the Gross Combination

Weight Rating (GCWR) and the trailer weight rating for your

vehicle. The GCWR is the total allowable weight of the

completely loaded vehicle and trailer including any

passengers, cargo, equipment and conversions. You should

not exceed the GCWR of your vehicle when you tow a trailer.

Chevrolet also calculates and publishes a trailer weight

rating for each model or series of Chevrolet vehicles for

comparison purposes. The trailer weight rating is not

specific to an individual vehicle and is most useful for

comparing product lines to one another to help you select

a product that will meet your needs. When you buy a

vehicle, you should ensure that the total load (including

passengers, cargo and equipment) you intend to pull with

it will be less than the trailer weight rating of the vehicle.

Because the trailer weight rating is calculated for a line of

vehicles, rather than an individual load situation, some

standardized assumptions are made when calculating the

trailer weight rating. First, the base curb weight of that type

of vehicle is used (the weight of a standard equipped vehicle

without any options). Second, it is assumed that there is only

one person in the vehicle (the driver) who weighs 150 lbs.

Third, it is assumed there is a certain tongue weight for the

load (a tongue weight is the weight of only the tongue of the

loaded trailer). For conventional trailering, a tongue weight

that is 10% of the loaded trailer weight is used. For fifth-wheel/

gooseneck trailering, a tongue weight that is 16.7% of the

loaded trailer weight is used.

HOW TO KEEP YOUR LOAD WITHIN THE CAPABILITIES OF

YOUR VEHICLE To be sure that your trailering combination is

appropriate for your vehicle, you must first obtain the weight

of your specific vehicle, with all the optional equipment you

ordered. You can take your vehicle to a weigh station to get

this figure, or you can see your dealer who can help you

calculate this figure based on the weight of the options you

ordered. You can then subtract the weight of your vehicle

from the GCWR. The difference between the two is the

capacity you have available for your cargo, passengers, trailer,

load and any other equipment you might use to set up your

trailer. Put another way, your GCWR should always be greater

than or equal to the weight of your vehicle, passengers, cargo,

trailer (with equipment) and load.

It is also important that your vehicle and your trailering

combination do not exceed the tongue weight, Gross Vehicle

Weight Rating (GVWR) or Rear Gross Axle Weight Rating

(RGAWR) limitations for your vehicle. The only way to be sure

to not exceed any of these ratings is to weigh the tow vehicle

and trailer combination, fully loaded for the trip, getting

individual weights for each of these items. This can be done

at a weigh station with a multi-platform scale.

The tongue weight for your trailer is the downward force

of the coupler of the trailer on the vehicle hitch. You can

calculate the tongue weight by placing the tongue of the

trailer on an appropriate scale. For conventional trailering,

the tongue weight should be 10% to 15% of the loaded trailer

weight. For fifth-wheel/gooseneck trailering, the tongue

weight should be 15% to 25% of the loaded trailer weight.

The GVWR is the maximum amount the vehicle itself should

weigh, including the as-equipped weight of the vehicle plus

the cargo, passengers and trailer tongue weight. Put another

way, the GVWR should always be greater than or equal to the

weight of your vehicle, passengers, cargo and tongue weight.

Finally, the RGAWR is the maximum allowable weight the rear

axle can carry. You can weigh your fully loaded vehicle and

trailer at a multi-platform weigh station to determine the

weight on the rear axle of the vehicle and ensure that you do

not exceed the RGAWR. You can find both the GVWR and the

RGAWR on the Certification/Tire label, which is found on the

rear edge of the driver door.

CHANGE IS COMING The Society of Automotive Engineers (SAE)

has recently announced some new guidelines for trailer

ratings. General Motors will therefore be changing its ratings

in the next few years. GM has tested and prepared ratings to

the new SAE standard and is ready to implement the new

ratings when it won’t create consumer confusion about

comparisons of vehicles commonly used for trailering. At this

point, key competitors are continuing to use their existing

ratings for 2014 model year pickups, so GM has decided that

retaining the existing rating system for the 2014 model year

will reduce confusion for dealers and customers.

Please always refer to your Owner’s Manual for more

information on trailering and on how to drive using a trailer.

IMPORTANT INFORMATION ABOUT TRAILERING

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