See also:

Maximum Gross Vehicle Weight (GVW)/maximum Gross Axle Weight (GAW)
The GVW of the towing vehicle must not exceed the Gross Vehicle Weight Rating (GVWR) shown on the F.M.V.S.S./C.M.V.S.S. certification label. The GVW equals the combined weight of the unloade ...

System operation
The automatic drive positioner system will not work or will stop operating under the following conditions: . When the vehicle speed is above 4 MPH (7 km/h). • When the adjusting switch for the driver ...

Brake booster
Check the brake booster function as follows: 1. With the engine off, depress and release the foot brake pedal more than 20 times. When the foot brake pedal movement (distance of travel) rema ...