2015-2017 Dodge Viper Interior Mirror: Auto-Dimming Failure and Replacement Guide

Symptoms of a Failing Interior Mirror

When the interior rear view mirror on a 2015-2017 Dodge Viper begins to fail, the symptoms are usually very noticeable. Because it's an electronic component, failures can be both physical and functional.

1. Leaking Fluid or a "Bubble" Inside the Glass

The most common failure is the breakdown of the electrochromic gel used for the auto-dimming feature. Over time, the seal around the glass can fail, allowing the gel to degrade and air to enter, creating a visible bubble or a distorted, lava lamp-like appearance. This not only looks bad but can also obstruct your view. In some cases, the fluid can leak out from the bottom of the mirror housing.

2. Auto-Dimming Feature Stops Working or Flickers

An electronic failure can cause the auto-dimming function to stop working entirely. You'll notice significantly more glare from headlights at night. This can be caused by a failure in the mirror's internal circuit board, a bad light sensor, or a problem with the power connection. Sometimes, the mirror may flicker between dim and normal states, which is often a sign of a failing internal component or a poor electrical connection.

3. Compass, Temperature, or Uconnect Buttons Are Inoperative

If your mirror includes features like a compass display or Uconnect buttons, a total loss of power can cause them to stop working. This usually points to a problem with the wiring harness connector behind the mirror or a blown fuse. Intermittent operation, where wiggling the mirror causes the functions to work temporarily, often indicates a broken solder joint on the mirror's circuit board where the power connector is attached.

Known Issues, TSBs, and Recalls

As of mid-2024, there are no specific recalls or Technical Service Bulletins (TSBs) from Dodge or the National Highway Traffic Safety Administration (NHTSA) that directly address failures of the interior rear view mirror for the 2015-2017 Viper. However, the electrochromic fluid failure is a widely known issue across many manufacturers that use this type of mirror from suppliers like Magna Donnelly. The 2015 Viper was included in a broad safety recall (NHTSA 15V-461 / FCA R40) for potential unauthorized electronic access to vehicle systems, which was remedied with a software update. This recall was not related to the mirror itself.

Buying a Used 2015-2017 Viper Interior Mirror

Due to the high cost of a new OEM mirror, a used part is often the best option. However, it's important to inspect it carefully to avoid buying a part that is already failing.

What to Inspect on a Used Mirror

• Check for Leaks: Carefully examine the glass for any signs of a bubble, discoloration, or separation, which indicates the auto-dimming fluid has failed. Look at the bottom edge of the plastic housing for any sticky residue, a sign of a past or current leak.
• Verify Features: The Viper mirror came with Uconnect/911/Assist buttons. Ensure the used mirror you are buying has the correct button configuration for your vehicle.
• Inspect the Connector: Look at the electrical connector on the back. Make sure none of the pins are bent or corroded and that the plastic housing isn't cracked.
• Check the Mount: Ensure the mounting point on the back of the mirror is intact and not cracked or stripped.

Compatibility and Part Numbers

The primary part numbers for the 2015-2017 Viper mirror are 68141142AA, 68141142AB, and 68141142AC. These numbers represent minor revisions, and they are generally interchangeable. Part number 68226596AB is also listed for some 2016 models. Always confirm the part number before purchasing. The key is to ensure your vehicle has the factory wiring for the auto-dimming feature. If your original mirror was a basic, non-powered mirror, you will not have the necessary harness to power an auto-dimming unit without significant custom wiring.

Interior Mirror Replacement Guide

Replacing the interior mirror on a Gen 5 Viper is a straightforward DIY job that typically takes less than 20 minutes.

Tools Needed:

• T20 Torx driver or Allen key (depending on the specific screw)
• Small flathead screwdriver or trim removal tool

Step-by-Step Replacement

1. Disconnect the Electrical Connector: Before removing the mirror, carefully unplug the wiring harness. There is a small tab on the connector that must be depressed to release it. Do not pull on the wires themselves.
2. Loosen the Set Screw: Look at the base of the mirror where it meets the metal button on the windshield. There is a small T20 Torx set screw that clamps the mirror onto the button. Loosen this screw a few turns; you do not need to remove it completely.
3. Slide the Mirror Off: Once the screw is loose, slide the entire mirror assembly upward, parallel to the glass, to disengage it from the windshield button.
4. Install the New Mirror: Slide the replacement mirror down onto the windshield button until it's fully seated.
5. Tighten the Set Screw: Tighten the T20 Torx screw until the mirror is held firmly in place. Do not overtighten, as you could damage the mirror mount or the windshield button.
6. Reconnect and Test: Plug the electrical connector back into the new mirror. Turn the ignition on and test the mirror's functions, including the auto-dimming feature (you can cover the forward-facing sensor with your finger and shine a light on the mirror glass to test it).

Cost Comparison

Prices for a 2015-2017 Dodge Viper interior mirror can vary significantly based on the source.

Frequently Asked Questions (FAQ)