2025 Nissan Sentra Rear Window Leak Quality Action PMA43

Nissan has initiated Quality Action PMA43 for certain 2025 Nissan Sentra (B18) vehicles. This action addresses a potential manufacturing defect where the rear window glass may not be properly installed, leading to water intrusion into the vehicle's cabin.

This is a significant concern, as 916 vehicles are currently in dealer inventory and are subject to a "Stop Sale" order. This means these vehicles cannot be sold, loaned, or driven until the inspection and necessary repairs are completed.

Important Warnings

Nissan has issued critical instructions regarding this quality action:

• "Please do not drive, loan, sell or trade" the specific vehicles in dealer inventory subject to this quality action. This is a crucial safety and quality measure to prevent affected vehicles from reaching customers before being remedied.
• Technicians performing the rear window glass replacement must "always wear safety glasses and heavy gloves to help prevent glass splinters from entering your eyes or cutting your hands."
• To prevent minor personal injury or property damage, technicians are cautioned "not to scratch the replacement glass during installation," "not to set or stand the glass on its edge" (as small chips could develop into cracks), and to "apply protective tape around the rear window glass to prevent the painted surface from damage."
• Before servicing the right rear seat bolster (air bag), technicians must place the ignition switch in the off position, disconnect both battery terminals, and wait at least three minutes. They must also "Do not use air tools or electric tools for servicing the rear seat bolster."
• When handling the rear side air bag module, technicians are warned to "Always work from the side or back of the rear seat bolster, do not work in front of the rear seat bolster." They must also "Do not insert any objects into the rear side air bag module," "Do not attempt to disassemble the rear side air bag module," "Do not expose the rear side air bag module to temperatures exceeding 93°C (200°F)," and "Do not expose the rear side air bag module to any oil, grease, detergent or water."
• During the inspection process, when removing interior trim, technicians are instructed "Do NOT disconnect the harness connector" for the right rear seat bolster and "Do NOT pull the welt completely off the body" when loosening the rear door welt.
• When using compressed air for inspection, it is "IMPORTANT: Regulate air pressure to 80-87 PSI" and "Do NOT use shop air pressure."

What's Being Addressed

The quality action targets a rear window glass installation issue that could allow water to leak into the cabin of affected 2025 Nissan Sentra vehicles. This could lead to water pooling under the rear seat cushion.

Symptoms

Owners of a 2025 Nissan Sentra rear window leak issue might observe:

• Water intrusion or moisture on the right (passenger) rear floor under the rear seat cushion.
• Air bubbles appearing at the upper right corner of the rear window glass when compressed air is applied, indicating a leak path.

Diagnosis and Inspection

Dealers will perform a two-stage inspection process. The first stage involves:

1. Opening the hood and disconnecting both battery cables, waiting at least three minutes.
2. Opening both rear doors and unlatching the front of the rear seat cushion to lift it up.
3. Inspecting the right (passenger) rear floor under the rear seat cushion for any signs of water intrusion or moisture. If water is found, the area will be dried, and the rear window glass will be replaced.

If no water intrusion is found during the first stage, a second inspection procedure is performed:

1. Removing the rear seat cushion, right rear seat back assembly, right rear seat bolster, right rear kicking plate, right rear door welt, and right rear pillar lower and upper finishers to access the rear window area.
2. Locating the outside upper right corner of the rear window glass.
3. Spraying a soapy water mixture at this corner.
4. From inside the vehicle, using a blow gun to blow regulated compressed air (80-87 PSI) under the headliner toward the upper right corner of the rear window glass.
5. Inspecting the outside upper right corner for air bubbles, which would indicate a leak path.

Repair Procedure Summary

If water intrusion or air bubbles indicating a leak are found, the rear window glass will be replaced. The repair involves carefully removing the existing rear window glass and installing a new one, following specific procedures outlined in the Electronic Service Manual (ESM) for BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY - GLASS & WINDOW SYSTEM - REMOVAL AND INSTALLATION – REAR WINDOW GLASS. After replacement, the vehicle is reassembled in reverse order, with specific torque specifications for bolts and nuts.

Required Parts

If replacement is necessary, the following part may be used:

• Part Number: 79700-6MWOA
• Description: GLASS-REAR WINDOW

Warranty Claim Information

Dealers will submit warranty claims using specific operation codes:

• PMA430: Inspect Floor for Water Intrusion and Replace the Rear Window Glass (2.2 hours)
• PMA431: Inspect Floor for Water Intrusion and Inspect Upper Corner of Rear Window Glass (No Bubbles Found, OK Condition) (0.6 hours)
• PMA432: Inspect Floor for Water Intrusion, Inspect Upper Corner of Rear Window Glass (Bubbles Found) Replace the Rear Window Glass (2.3 hours)

An expense code 515 for Miscellaneous Glass Repair has a maximum amount of $50.00.

What Owners Should Do

If you own a 2025 Nissan Sentra, especially if you experience any signs of water leaking into the cabin, you should contact your authorized Nissan dealer immediately. They can verify if your vehicle is affected by Quality Action PMA43 and perform the necessary inspection and repairs. Since this is a quality action, the inspection and any required repairs will likely be covered by Nissan.

---

Source: NHTSA ID: 11012271