Before you begin:
* Disconnect the battery's negative terminal. This prevents accidental shorts and electrical damage.
* Gather your tools. You'll likely need a screwdriver (likely Phillips head), possibly a socket wrench, and possibly some trim removal tools (plastic pry tools are good for this to avoid scratching). New mirror assembly or glass will also be needed.
Replacing the Entire Mirror Assembly (Power or Manual):
1. Remove the Door Panel: This is usually done by removing screws around the edges of the door panel and then carefully prying the panel away from the door. Be gentle to avoid breaking clips. There are usually clips that hold the panel in place, and these can be carefully popped loose with a trim removal tool. Your owner's manual should show locations of screws and clips.
2. Disconnect the Electrical Connector(s): If you have a power mirror, unplug the connector(s) from the back of the mirror assembly. Take a photo if you're unsure how it goes back together.
3. Remove the Mirror Assembly: There are usually bolts holding the mirror assembly to the door. Remove these bolts. The mirror may also be held in with clips; careful prying might be necessary.
4. Install the New Assembly: Reverse the removal process to install the new mirror assembly. Securely fasten the bolts and reconnect the electrical connectors (if applicable).
5. Reinstall the Door Panel: Carefully snap the door panel back into place, ensuring all clips are engaged.
Replacing Only the Mirror Glass (Power or Manual):
This is usually easier and often only involves removing the glass itself.
1. Remove the Door Panel (sometimes): Depending on the mirror design, you *might* not need to remove the door panel. Some mirrors allow for glass removal with the panel in place. Check your owner's manual or look closely at the mirror.
2. Access the Mirror Glass: There's usually a retaining clip or some sort of fastener holding the glass to the mirror housing. This usually involves carefully prying or popping these fasteners loose.
3. Remove the Old Glass: Once the fasteners are released, carefully remove the old glass. Be mindful of any small clips or parts.
4. Install the New Glass: Position the new mirror glass into the housing and carefully snap it into place. Make sure it's securely fastened.
5. Reinstall the Door Panel (if removed): If you removed the door panel, reinstall it following the steps above.
Important Considerations:
* Power Mirrors: If you're working with power mirrors, be extra careful with the electrical connectors. If you're unsure about the wiring, seek professional help.
* Heated Mirrors: If your mirrors are heated, pay attention to the heating element wiring when removing and installing.
* Blind Spot Monitoring: Some models have blind spot monitoring systems integrated into the mirrors. Replacing the mirror might require resetting the system. Consult your owner's manual or a repair manual.
This is a general guide. The exact procedure may vary slightly depending on the specific model and trim level of your 2004 Dodge Ram. Always refer to a repair manual or your owner's manual for the most accurate and detailed instructions. If you are uncomfortable performing this repair yourself, it's best to take it to a qualified mechanic.
