2009-2012 Acura RL Side Mirror: Power Fold vs. Manual, and Failure Guide

Power Folding vs. Manual Folding: The Key Difference

Before buying a replacement mirror for your 2009-2012 Acura RL, you must first determine which type your car has. This is the most common point of confusion and the biggest compatibility trap.

• Manual Folding Mirrors: This is the standard configuration for most 2009-2012 Acura RL models. The mirror housing can be folded against the window, but you must push it by hand.
• Power Folding Mirrors (PFM): This feature was only available on the top-tier 2011-2012 Acura RL with the Advance Package. These mirrors retract and deploy electronically using a switch inside the car.

Symptoms of a Failing Side View Mirror

Failures in the RL's side mirror can range from minor annoyances to significant safety issues. Here are the most common symptoms reported by owners.

• Mirror Glass Won't Adjust: When you use the control switch, the mirror glass doesn't move, or moves intermittently. This usually points to a failed adjustment motor or a problem with the control switch itself.
• Memory Position is Incorrect or Lost: A very common issue is the mirror failing to return to the correct saved position when using the driver memory buttons. It may move to a random position or not move at all. This can sometimes be caused by dirty internal position sensors or a software glitch.
• Clicking or Popping Noises: Audible clicking or grinding sounds when the mirror adjusts, folds, or tilts down in reverse often indicate dried-up internal grease or stripped plastic gears within the actuator assembly.
• Power Fold Function Fails (Advance Models): The mirror may get stuck in the folded or unfolded position, or you may hear the motor running without any movement. This is typically caused by a stripped gear inside the folding mechanism or an electrical fault.
• Heated Mirror Doesn't Work: The mirror glass remains frosted or fogged in cold weather. This indicates a burnt-out heating element or a break in the two wires connected to the back of the mirror glass.
• Turn Signal Indicator is Out: The LED strip in the mirror housing stops flashing. This requires replacing the LED indicator unit within the mirror housing.
• Mirror Housing is Loose or Vibrates: The entire mirror assembly may feel loose and vibrate at speed. On the RL, this can sometimes be fixed by tightening three screws located under a small access panel on the bottom of the mirror housing.

Buying a Used 2009-2012 Acura RL Side Mirror

Purchasing a used OEM mirror is often the most cost-effective way to get a quality replacement. However, you must verify several key details to ensure you get the right part.

1. Verify Features: Power Fold and Memory

First, confirm if your car has power-folding mirrors (2011-2012 Advance Package only). All mirrors for this generation should have power adjustment, heat, and memory functions. Ask the seller to confirm the donor vehicle's trim level if possible.

2. Check the Electrical Connector

The wiring harness is a critical compatibility point. These mirrors typically use a 10-wire connector. Before buying, it's wise to access your own connector by removing the small interior triangular trim piece (the sail panel) to visually compare it with photos from the seller. A mismatch in the number of pins or connector shape means the part will not work.

3. Match Your Paint Code

Acura RL mirrors are painted to match the body color. You can find your car's paint code on a sticker inside the driver's door jamb. Look for a code like NH700M or YR575M. If you can't find a used mirror in the exact color, you will need to have the replacement professionally painted, adding to the total cost.

4. Inspect the Part

When inspecting the used mirror (in person or through detailed photos):

• Glass: Check for cracks, deep scratches, or discoloration. Some mirrors have an auto-dimming feature, and if the fluid inside leaks, it can cause a dark, distorted pattern.
• Housing: Look for cracks in the plastic housing or scuffs on the painted cover. Ensure it feels solid and doesn't rattle excessively.
• Turn Signal Lens: Check for cracks or moisture inside the lens.

Cost Comparison

Prices can vary significantly based on the source, condition, and specific features of the mirror.

Diagnosing Common Problems

• Memory/Adjustment Failure: Before replacing the mirror, try a system reboot. Disconnect the negative battery terminal for 15 minutes, then reconnect it. This forces the car's computers to reset and can sometimes resolve memory-related glitches. You will need your radio and navigation codes after doing this.
• Setting the Memory: To properly save your mirror positions, adjust the seat and both side mirrors to your liking. Then, press the 'SET' button on the door, followed by the memory button (1 or 2) you wish to program. The mirror positions are saved along with the seat position.
• Vibrating Mirror Housing: Check the three screws on the underside of the mirror assembly. Carefully pry off the small plastic cover and tighten these screws to see if it resolves the rattle.

Replacement Overview (Difficulty: 2/5)

Replacing the side mirror is a manageable DIY job for most people with basic tools. The estimated time is about 30-60 minutes per side.

1. Access the Bolts: Gently pry off the triangular plastic trim piece on the inside of the door, directly opposite the mirror. This is often called the 'sail panel'.
2. Disconnect Wiring: The wiring connector is usually located behind the sail panel or slightly lower, requiring you to loosen the top portion of the door panel to reach it. Disconnect the harness by pressing the release tab.
3. Unbolt the Mirror: Remove the three 10mm nuts that hold the mirror assembly to the door frame. Have a hand on the mirror to prevent it from falling as you remove the last nut.
4. Install the New Mirror: Guide the new mirror's studs and wiring harness through the holes in the door. Hand-tighten the nuts.
5. Test Everything: Before reassembling the door panel and trim, plug in the new mirror and turn the ignition on. Test all functions: power adjustment (up/down/left/right), turn signal, heater (if possible), and power folding (if equipped).
6. Reassemble: Once you've confirmed it works, tighten the nuts, reconnect any door panel clips you loosened, and snap the sail panel back into place.

Recalls and Technical Service Bulletins (TSBs)

As of mid-2024, there are no recalls or TSBs issued by Acura or the NHTSA specifically for the side view mirrors on the 2009-2012 Acura RL. The numerous recalls for this vehicle are related to the Takata airbag inflators.

Frequently Asked Questions