1. Preparation:
* Safety First: Disconnect the negative terminal from your car battery to prevent electrical shorts. This is crucial.
* Gather Tools: You'll likely need a trim removal tool (plastic pry tool), a Phillips head screwdriver (possibly a Torx depending on the mirror mounting), and possibly a socket wrench. Have some clean rags handy.
* Assess the Mirror: Examine the mirror closely to understand how it's attached. Take photos before you start, focusing on the mirror's housing and its connection points.
2. Removing the Mirror Housing:
* Interior Access (most common): Usually, you'll need to access the mirror mechanism from the inside of the car door. There's often a small access panel or trim piece covering the mirror's mounting bolts. Carefully pry this panel open using your trim removal tool. Work slowly and gently to avoid scratching the paint. Be careful not to break the clips holding the trim in place.
* Exterior Access (less common): In some cases, there might be screws or fasteners on the exterior of the mirror housing itself. If so, these would need to be removed first.
3. Disconnecting Electrical Connections:
* Once the access panel is removed, you should see the electrical connector for the mirror (if it's powered, heated, or power-folding). Carefully unplug this connector. Take a picture of the connector to help with reassembly.
4. Removing the Mounting Bolts:
* After disconnecting the electrical connector, you should see the bolts or screws holding the mirror housing to the door. Carefully remove these using the appropriate screwdriver or socket wrench.
5. Removing the Mirror Housing:
* With the bolts removed, gently pull the mirror housing away from the door. There might be some clips or tabs holding it in place; carefully work these loose.
6. Installing the New Mirror Housing:
* Reverse the removal process to install the new mirror. Make sure the electrical connector is securely plugged in.
* Tighten all bolts or screws to the manufacturer's specifications (found in your owner's manual).
7. Testing:
* Reconnect the battery's negative terminal.
* Test all mirror functions (power adjustment, heating, folding if applicable).
Important Considerations:
* Mirror Type: The process can vary slightly depending on whether your mirror is a standard manual mirror, a power-adjustable mirror, a power-folding mirror, or a heated mirror.
* Used vs. New: If using a used mirror, ensure it's in good working order before installation.
* Professional Help: If you're not comfortable with this type of repair, it's best to take your car to a qualified mechanic. Improper installation could damage the door or the electrical system.
This is a general guide. It's highly recommended to find a repair manual specific to your 1998 Buick LeSabre Limited or search for YouTube videos showing the repair process for that specific model year. This will give you the most accurate and visual step-by-step instructions. Remember to be patient and take your time.
