23-NA-085
Service Bulletin Details
Public Details for: 23-NA-085
This technical bulletin provides a procedure to correct the condition of service restraint system message / air bag warning mil / dtc B14DC set.
Models from 2023
2023 CADILLAC ESCALADE |
2023 CADILLAC ESCALADE ESV |
2023 CHEVROLET SUBURBAN |
2023 CHEVROLET TAHOE |
2023 GMC YUKON |
2023 GMC YUKON XL |
Models from 2022
2022 CADILLAC ESCALADE |
2022 CADILLAC ESCALADE ESV |
2022 CHEVROLET SUBURBAN |
2022 CHEVROLET SUBURBAN 1500 |
2022 CHEVROLET TAHOE |
2022 GMC YUKON |
2022 GMC YUKON XL |
Models from 2021
2021 CADILLAC ESCALADE |
2021 CADILLAC ESCALADE ESV |
2021 CHEVROLET SUBURBAN |
2021 CHEVROLET SUBURBAN 1500 |
2021 CHEVROLET TAHOE |
2021 GMC YUKON |
2021 GMC YUKON XL |
Service Bulletin Bulletin No.: 23-NA-085 Date: May, 2023 TECHNICAL Subject: Service Restraint System Message / Air Bag Warning MIL / DTC B14DC Set This bulletin replaces PIT5885B. Please discard PIT5885B. Brand: Model: Cadillac Escalade Models Chevrolet GMC Suburban Tahoe Models Model Year: VIN: from to from to 2021 2023 - - Engine: Transmission: All All Yukon Models Involved Region or Country Middle East and North America Condition Some customers may comment on a Service Restraint System Message and/or SIR Warning MIL intermittently illuminated. When checking for DTC's, a B14DC will be found. Cause The cause of the condition may be the driver's seat side airbag connector coming in contact with the seat back cushion. Thus, during movement from the driver, or while adjusting the seat, it may cause the airbag connector terminals to temporarily lose contact, causing the issue. Correction Review the procedure below to correct the vehicles condition. Important: Service agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws. Service Procedure To correct this concern, perform the following procedure to the seat back foam. Listed below are two service procedures depending on the model: Service Procedure for Tahoe/Suburban/Yukon Models: 1. Move the driver seat to the full rearward position 2. Tilt seat back forward for better access to rear of seat back. 3. Disconnect the battery. Copyright 2023 General Motors LLC. All Rights Reserved. 5967233 Page 2 May, 2023 Bulletin No.: 23-NA-085 Caution: To avoid possible zipper damage to the cover, carefully follow the video and Notes in the Service Procedure. 4. Unzip both sides of the seat back trim cover, disengage the lower J-channel retainer and lay the cover forward over the seat back. Refer to Front Seat Back Cover and Pad Removal and Installation, in SI. 5967228 6. Zip tie the airbag connector harness to the seat frame. If there is already a zip tie installed, no further repairs are needed. Continue diagnosis referring to the proper procedures within SI. 5967221 5. On the lower right side of the seat, pull back the seat cover to expose foam and locate the seat airbag connector. 6341998 Note: For Model Year 2023, check for the zip tie to already be installed from the plant. If zip tie is installed, no further repairs needed. 5967235 Note: Do not replace the seat airbag connector unless instructed by an open Field Action as identified in Investigate Vehicle History (IVH). Bulletin No.: 23-NA-085 May, 2023 5967225 7. Cut 2 pieces of 1" wide double-sided Velcro tape P/ N 189590, or equivalent, one 200 mm (7.84 in.) length and the other 180 mm (7.08 in) length. Page 3 5967233 Caution: To avoid possible zipper damage to the cover, carefully follow the video and Notes in the Service Procedure. 9. Reinstall the seat back cover. Refer to Front Seat Back Cover and Pad Removal and Installation, in SI. 10. Reconnect the battery. Service Procedure for Escalade: 1. Move the driver seat to the full rearward position. 2. Tilt seat back forward for better access to rear of seat back. 3. Disconnect the battery. 5967222 7.1. As shown in the graphic above, secure the 200 mm Velcro horizontally (1), compressing the foam 50%. 7.2. As shown in the graphic above, secure the 180 MM Velcro vertically (2), compressing the foam 50%. 8. Reposition foam and seat back cover, ensuring airbag connector has clearance to all foam and material. 5967240 4. Remove the driver front seat back finish panel (1). Refer to Front Seat Back Finish Panel Replacement, in SI. Page 4 May, 2023 Bulletin No.: 23-NA-085 5966735 5. On the lower right side of the seat, pull back the seat cover to expose foam and locate the seat airbag connector. 5967228 6. Zip tie the airbag connector harness to the seat frame. If there is already a zip tie installed, no further repairs are needed. Continue diagnosis referring to the proper procedures within SI. 5967235 Note: Do not replace the seat airbag connector unless instructed by an open Field Action as identified in Investigate Vehicle History (IVH). 6341998 Note: For Model Year 2023, check for the zip tie to already be installed from the plant. If zip tie is installed, no further repairs needed. 7. With a felt tip pen or suitable marker, draw lines to Bulletin No.: 23-NA-085 May, 2023 indicate locations for foam material removal and slits: Page 5 mm (1.90 in) (2) from the bottom seam of the seat cover foam, and 25 mm (0.98 in.) (3) from the edge seam of the foam. 5967236 7.1. . As shown in the graphic above, mark locations for a square: top line 125 mm (4.92 in) (1) from the bottom of the seat cover foam, right line 40 mm (1.57 in) (2) from the left edge of the foam, and bottom line 55 mm (2.17 in) (3) from the bottom of the seat cover foam. 7.2. Also shown in the graphic above, mark a vertical 40 mm (1.57 in) slit (4) located 62 mm (2.44 in) (5) from the left edge of the foam and 70 mm (2.75 in) (6) from the bottom of the seat cover foam. 5967238 7.4. As shown in the graphic above, mark a line from the bottom corner of the square (1) creating a lower leg, angling and arcing down to 20 mm (0.80 in) (2) from the bottom of the foam. Note: For best results, perform cuts with multiple passes. 8. Using an X-Acto hobby knife, or other suitable cutting tool, cut along the square lines drawn and remove the foam material for clearance of the connector and wire. 9. Cutting along the marked line, remove material from the lower leg of the foam 10. Cut 2 slits, one at the 40 mm marked line, the other at the 25 mm marked line. 5966742 7.3. As shown in the graphic above, on the inboard side panel of the foam, mark a horizontal 25 mm (0.98 in) slit (1) located 48 5967225 Page 6 May, 2023 Bulletin No.: 23-NA-085 11. Cut a 100 mm (3.94 in.) length of 1" wide double sided Velcro tape P/N 189590, or equivalent. 5967242 5967219 17. Install Velcro though the 25 mm slit (2), and secure compressing the foam 50 %. 12. Install Velcro though the 40 mm slit (1) , and secure compressing the foam 50 %. 13. . Reconnect the battery. 5966747 5967220 14. Tilt the seat back fully rearward. 15. Disconnect the battery. 16. Cut a 180 mm (7.0 in.) length of 1" wide double sided Velcro. 18. Reposition foam and cover material, ensuring airbag connector has clearance to all foam and material. 19. Reconnect the battery. Bulletin No.: 23-NA-085 May, 2023 Page 7 5967240 20. Reinstall the driver front seat back finish panel (1). Refer to Front Seat Back Finish Panel Replacement, in SI. Parts Information Description Part Number Material Allowance Double Sided Velcro Tape 189590 $5.00 Warranty Information For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time 2086778* Rear of Driver Seat Back connector inspection 0.3 hr Add Access Rear of Driver Seat Back, Trim Seat Foam and/ or Install Velcro Tape 0.3 hr *This is a unique Labor Operation for Bulletin use only. Version 1 Modified Released May 05, 2023 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION