Excessive Wind Noise Heard Coming from Sunroof Front Edge Area, Front Length of Sunroof Window Inner Seal May Become Loose or Detached – 2022-2023 Chevrolet Bolt EUV

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Copyright 2022 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 22-NA-197 Date: October, 2022 TECHNICAL Subject: Excessive Wind Noise Heard Coming from Sunroof Front Edge Area, Front Length of Sunroof Window Inner Seal May Become Loose or Detached Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Bolt EUV 2022 2023 — — All All Involved Region or Country North America, Brazil, Middle East, GM Korea Company Additional Options (RPOs) Equipped with ROOF-SUN, DUAL GLASS, OTR SLIDING, ELEC SUNSHADE (RPO CAJ) Condition 6163012 Some customers may comment on hearing excessive wind noise from the sunroof front edge area or may notice that the sunroof window inner seal has become detached or loose at the front. Cause The cause of this condition may be improper retention of the inner sunroof window seal. Page 2 October, 2022 Bulletin No.: 22-NA-197 Correction 6163013 Apply Instant Adhesive Loctite, or equivalent, to the inboard walls of two standing ribs of the forward sunroof frame and reinstall the seal following the Service Procedure below. Service Procedure 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. 1. Open the sunroof sunshade to the fully open position. 2. Open the sunroof window to the fully open position. 6163015 3. Pull off the inner sunroof window seal from the sunroof frame, across the front only. 6163016 Important: Any excess adhesive that may spill onto to the roof surface is very difficult to remove. Ensure the paint surface it protected with tape. 4. Apply painter’s tape, or equivalent, across the roof surface, forward of the inner sunroof window seal. 5. Clean the front frame area using a lint-free cloth dampened with a 50/50 mixture of isopropyl alcohol and water. Then wipe dry. Bulletin No.: 22-NA-197 October, 2022 Page 3 6163018 6163020 6. Apply Instant Adhesive Loctite to the inboard walls of the two standing ribs (1) of the forward sunroof frame.Apply the adhesive along the entire front edge and both front corners. 7. Reinstall the inner sunroof window seal. Inspect the gap and flushness of the seal. 8. Perform the Sunroof Initialization/Teach Process and verify proper operation. Refer to Sunroof/ Sunshade Motor Initialization in SI. 9. Close the sunroof window and sunshade. 10. Remove the tape from the roof surface. Parts Information Causal Part Description Part Number Qty N/A ADHESIVE, INSTANT GEL LOCTITE 0.07 OZ 19332001 (in Canada, use 10953475) 1 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 6086018* Remove and Reinstall Front Length of Inner Sunroof Window Seal, Apply Adhesive 0.4 hr *This is a unique Labor Operation for bulletin use only. Version 1 Modified Released September 30, 2022 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

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