1998 Buick Riviera Owner's Manual

1998 Buick Riviera Owner's Manual 1998 Buick Riviera Owner's Manual

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1. Loosen the two bolts on the inboard edge of theheadlamp assembly. This allows you to pull outthe assembly for more hand clearance whenchanging bulbs.2. Reach into the assemblyand turn the bulb socketone-quarter of a turntoward the center of theengine compartment,while pressing it firmly.3.4.5.6.Remove the wire connector from the bulb bylifting the lock tab and pulling it away from theplastic base.Install the bulb by putting the small tab (D) into thesmall notch in the lamp (E).Turn the bulb socket one-quarter of a turn makingsure the tab is properly engaged in the panel slot.To reassemble, attach the wire connector (A) tothe plastic base making sure the lock tab (B) isover the lock (C).6-33

aaeeThe vehicle should not have any snow, ice or mudattached to it.The vehicle should be fully assembled and all otherwork stopped while headlamp aiming is being done.There should not be any cargo or loading of thevehicle, except it should have a full tank of gas andone person or 160 lbs. (75 kg) on the driver’s seat.Tires should be properly inflated.Rock the vehicle to stabilize the suspension.may flash their high beams at you if your adjustmentis much above plus 0.4 degrees.If you find that the headlamp aiming needs adjustment,follow these steps:Start with the vertical headlamp aim. Don’t try to adjustthe horizontal aim first. Adjustment screws can beturned with an E8 Torx@socket or T15 Torx screwdriver.NOTICE:To make sure your headlamps are aimedproperly, read all the instructions beforebeginning. Failure to follow these instructionscould cause damage to headlamp parts.For the vertical adjustment, state inspection stationsgenerally will allow a reading of plus 0.76 degrees orminus 0.76 degrees from the center of the bubble.It is recommended that the upper limit not exceed plus0.4 degrees from the center of the bubble. Other drivers6-341. Check the vertical aim for each headlamp. Thevehicle must be on level a surface. Turn the verticalaiming screw until the bubble in the level is centeredat 0 (zero).

aaeeThe vehicle should not have any snow, ice or mudattached to it.The vehicle should be fully assembled and all otherwork stopped while headlamp aiming is being done.There should not be any cargo or loading of thevehicle, except it should have a full tank of gas andone person or 160 lbs. (75 kg) on the driver’s seat.Tires should be properly inflated.Rock the vehicle to stabilize the suspension.may flash their high beams at you if your adjustmentis much above plus 0.4 degrees.If you find that the headlamp aiming needs adjustment,follow these steps:Start with the vertical headlamp aim. Don’t try to adjustthe horizontal aim first. Adjustment screws can beturned with an E8 Torx@socket or T15 Torx screwdriver.NOTICE:To make sure your headlamps are aimedproperly, read all the instructions beforebeginning. Failure to follow these instructionscould cause damage to headlamp parts.For the vertical adjustment, state inspection stationsgenerally will allow a reading of plus 0.76 degrees orminus 0.76 degrees from the center of the bubble.It is recommended that the upper limit not exceed plus0.4 degrees from the center of the bubble. Other drivers6-341. Check the vertical aim for each headlamp. Thevehicle must be on level a surface. Turn the verticalaiming screw until the bubble in the level is centeredat 0 (zero).

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