General Service Bulletin 23-7173 - Various Vehicles - Rear-View Mirror Concern Analysis

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GENERAL SERVICE BULLETIN Various Vehicles - Rear-View Mirror Concern Analysis	23-7173 05 January 2024
This bulletin supersedes 23-7092.   Summary   This article supersedes GSB 23-7092 to add the Melted Housing section and update the power mirror synchronization.   This article is designed to provide examples of interior and exterior rear-view mirror conditions/damage to assist in determining if the condition is warrantable or non-warrantable. Refer to the latest version of the Warranty and Policy Manual online for the latest rear-view mirror warranty coverage information.   Use this article to assist in determining warrantable interior and exterior rear-view mirror concerns.   Service Information Vehicles with power folding rear-view mirrors may exhibit concerns such as inoperative, folding with clicking sounds, vibrating/shaking in wind/while driving, or does not lock firmly in drive position. This may occur when the exterior rear-view mirrors are manually folded in such as going through a car wash, being bumped in transportation or a parking lot, or only one mirror is folded in. This may be attributed to the power folding mirror being out of synchronization or damage to the mirror mount. Perform the mirror synchronization procedure prior to completing any additional diagnostics. The synchronization procedure may need to be performed more than once to receive the loud popping sound, which is an indication the synchronization procedure has completed. Refer to WSM Section 501-09 Rear View Mirrors – General Procedures – Power Mirrors Synchronization. If the synchronization procedure does not correct the concern, continue with cleaning and inspection before performing additional diagnostics. Diagnostic test results and resynchronization information must be documented if a warrantable defect is found. Concerns that are corrected by the power mirror synchronization should not be submitted under warranty.   Loose manual folding exterior rear-view mirrors are most commonly the result of damage to the assembly/mount. Closely inspect the exterior rear-view mirror after cleaning to review for witness marks/impact damage.   Loose interior rear-view mirror mounts are most commonly the result of not being seated or the mount/attachment being damaged. Reseating the mirror per the WSM, Section 501-09 Rear View Mirrors may correct this concern. If the windshield has been replaced, damage to the mount can occur from improper removal/installation.   Pen test A pen test should be used to determine mirror glass impact damage. Slowly run the tip of a ball point pen inside the crack throughout its entire length. If an impact is present, the pen helps to feel an impression.   Cleaning procedure Clean the entire mirror assembly and glass to assist in verification of the customer concern and/or impact damage using water, a cloth, and car wash soap as needed. Do not clean any mirror glass or housing with an ice scraper, razor blade, abrasive pad, harsh chemicals or petroleum based cleaning products, as these may damage the mirror glass and/or housing.   Examples Of Non-warrantable And Warrantable Conditions A rear-view mirror assembly can be damaged from abuse or impact and show little or no witness marks on housing. Shiny or flat spots on the housing indicate abuse or impact.   Typical non-warrantable damage from abuse or impact Exterior mirror:   • Mirror glass missing • Glass with scratches or cracks • Glass loose due to broken pivot or missing jackscrews • Scrapes on housing resulting from impact or abuse • Attachments loose due to impact • Broken mirror motor plate • Glass reattached (glued) after impact • Broken pivot neck/housing Interior mirror:   • Interior mirror glass cracked • Broken windshield at mirror mount • Interior mirror detached pivot Typical warrantable conditions   • Glass discoloration • Distorted mirror glass reflection • Electrical failure of motors and switches • Wiring harness shorted • Single line glass crack on heated mirror (verified with pen test) • Single line glass stress crack (verified with pen test) NOTE: All mirror components should be serviced at the lowest level available per the Warranty and Policy Manual. Over-repairs when lower-level components are available are subject to review and warranty adjustment.   Dirty Mirror Housing (Non-warrantable) (Figure 1) Dirty mirror housings cannot be properly inspected for outside source influence. Mirrors returned without proper cleaning are subject to warranty review and adjustment. Figure 1   Scrapes, Impact, Broken Housing, Loose Attachment (Non-warrantable) (Figure 2) Figure 2   Power Folding Mirror Detent Pin Damage (Non-warrantable) (Figures 3-5) Power-fold trailer tow mirrors are designed to operate the mirror between home to folded position. They are also designed to manually fold forward beyond home position. If the mirror is forcefully pushed beyond the forward fold position, the detent pin in the mirror is damaged and will not stop at home position using the power-fold button. To test this, push the power-fold button. If the mirror unfolds forward past home position (using the power fold button), it is not warrantable. Figure 3 Figure 4 Figure 5   Grain Removed From Plastic Mirror Housing (Non-warrantable) (Figure 6) Physical damage that is often accompanied by power-fold mirror detent pin damage. Figure 6   Glass Loose, Broken Motor (Non-warrantable) (Figures 7-8) Figure 7 Missing mirror glass/backing plate missing (non-warrantable) (Figure 8) Figure 8   Melted Housing (Non-warrantable) (Figures 9-10) Indicates exposure to excessive heat or chemical contact. Figure 9 Figure 10   Discolored Housing (Non-warrantable) (Figure 11) Stains may have a liquid drip or spray pattern (shown) from contact with harsh liquids. Figure 11   Discolored Glass (Warrantable) (Figure 12) Figure 12   Distorted Mirror Glass Reflection (Warrantable) (Figure 13) Figure 13   Single Line Crack On Heated Mirror (Warrantable) (Figure 14) This crack will occur from thermal stress. Refer to the pen test at the beginning of this article to determine impact damage. Figure 14   Distorted Puddle Lamp Projected Image (Warrantable) (Figure 15) Figure 15   Portion Of Missing Glass (Warrantable) (Figure 16) Adhesive is still present on the mirror backing plate which is securely attached to the motor. Figure 16   Interior Mirror Glass Cracked (Non-warrantable) (Figure 17) Excessive force including improper removal/installation. Figure 17   Broken Windshield (Non-warrantable) (Figure 18) Excessive force including improper removal/installation. Figure 18   Interior Mirror Detached Pivot (Non-warrantable) (Figure 19) Excessive force will detach the press fit pivots. Figure 19   Blocked Light Sensor (Non-warrantable) (Figure 20) Obstruction will cause inoperative automatic high beam. Figure 20   © 2024 Ford Motor Company All rights reserved. NOTE: This information is not intended to replace or supersede any warranty, parts and service policy, workshop manual (WSM) procedures or technical training or wiring diagram information.