シボレーサバーバンの取扱説明書・マニュアル [全578ページ 3.04MB]
2009_chevrolet_suburban_owners.pdf
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Trailer Gain Adjustment ProcedureTrailer Gain should be set for a specific traileringcondition and must be adjusted any time vehicle loading,trailer loading or road surface conditions change.Setting the Trailer Gain properly is needed for the besttrailer stopping performance. A trailer that is over-gainedmay result in locked trailer brakes. A trailer that isunder-gained may result in not enough trailer braking.Both of these conditions may result in poorer stoppingand stability of the vehicle and trailer.Use the following procedure to correctly adjust TrailerGain for each towing condition:1. Make sure the trailer brakes are in proper workingcondition.2. Connect a properly loaded trailer to the vehicleand make all necessary mechanical and electricalconnections. SeeLoading the Vehicle on page 4-33for more information.3. After the electrical connection is made to a trailerequipped with electric brakes: A TRAILER CONNECTED message will bebriefly displayed on the DIC display. The Trailer Brake Display Page will appear onthe DIC showing TRAILER GAIN and TRAILEROUTPUT. In the Trailer Output display on the DIC, ------will disappear if there is no error present.Connecting a trailer without electric brakeswill not clear the six dashed lines.4. Adjust the Trailer Gain by using the gain adjustment(+ /−) buttons on the Trailer Brake Control Panel.5. Drive the vehicle with the trailer attached on alevel road surface representative of the towingcondition and free of traffic at about 20 to 25 mph(32 to 40 km/h) and fully apply the Manual TrailerBrake Apply lever.Adjusting trailer gain at speeds lower than20 to 25 mph (32 to 40 km/h) may result inan incorrect gain setting.6. Adjust the Trailer Gain to just below the point oftrailer wheel lock-up, indicated by trailer wheelsqueal or tire smoke when a trailer wheel locks.Trailer wheel lock-up may not occur if towinga heavily loaded trailer. In this case, adjust theTrailer Gain to the highest allowable setting forthe towing condition.7. Re-adjust Trailer Gain any time vehicle loading,trailer loading or road surface conditions changeor if trailer wheel lock-up is noticed at any timewhile towing4-64
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