NHTSA ID Number: 10222784
Manufacturer Communication Number: 21-NA-165
Summary
This service bulletin provides a service procedure to correct a customer concern of a Rattle Noise/Vibration from Under Vehicle.
Cause
This condition may be caused by a crack (2) in the brace (1) used to space the exhaust system.
Correction
If the brace was found to be the cause of the noise or vibration, remove the brace from the exhaust pipe.
– The brace is only used to assist installing the exhaust system at the assembly plant and provides no other purpose.
3 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| CADILLAC | CT5 | 2020-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-165
Date: September, 2022
MC-10222784-0001.pdf 124.608KB
- [High-Performance Cutting] Designed for cutting metal & stainless steel, these cut off wheels 4 1/2 inch work efficiently with any angle grinder wheel, supporting speeds up to 13,300 RPM.
- [Dual Alumina Composition] These grinding wheels 4 1/2 inch combine white alumina for stainless steel and brown alumina for carbon steel to improve durability and cutting speed.
- [Ultra-Thin & Efficient] At just 0.045" thick, these cutting wheels 4 1/2 inch reduce material waste and provide smooth, precise cuts with your angle grinder cutting disc.
- [Durable & Safe] Ideal for steel pipes, rebar, and cut off jobs, these reinforced 4 1/2 cut off wheel resist wear better than standard discs.
- [10-Pack Value] Each order includes 10 high-quality cut off wheels, ensuring long-lasting performance for frequent metalworking tasks.
- More Cuts. Fewer Wheels
- 50% Longer Life* Replace wheels less often with Temper Point grains that are tougher and razor sharp for more cuts. Better adhesion between the coated grains and resin creates a longer lasting cutting edge that wears slowly
- Extremely Versatile Cut off Wheels 4 1/2 inch : Efficiently cut a wide range of metals including carbon steel, stainless and nickel-based alloys
- Aggressive Cutting Action: Make fast cuts with a thin wheel design grinding disc and high-grain concentration
- Durable By Design Angle Grinder Attachments: Built with two sheets of fiberglass for wheel strength. Designed to reduce wheel breakage
- Size :4-1/2-inch x .047-inch x 7/8-inch
- Performance: this is for a pack of 50 pieces of our cutting wheels thin 0.045" Cutting wheel design for fast burr free cutting. Perfectly compatible with all 4-1/2 angle grinders with 7/8-inch arbor, operating up to 13,300 rpm and 80m/s
- Advantage: thin .045-inch wheel design for fast burr free cutting proprietary aluminum oxide grain combination for aggressive cutting action
- Material: proprietary aluminum oxide grain for long life and fast cutting.double fiberglass mesh reinforced for further safety and durability
- Safety tips: please use all necessary protective gear when you use these cutting discs.if there is any problem with the product, please contact us to help you solve the after-sales problem
- Perfect Size: You will receive 100 pieces cutoff wheels 4 1/2 inch. Outer diameter:4-1/2 Inch, inside diameter:7/8 inch, operating up to 13,300 RPM and 80M/S. Optimized for 4-1/2"angle grinders.The cutting wheels are suitable for most angle grinders and compatible with all 4-1/2" angle grinders.
- Premium and Value: VOISEN cut off wheels made by proprietary aluminum oxide grain for long life and fast cutting,so our cut-off wheel has 2 times the cutting life of a normal cutting wheel.Double fiberglass mesh reinforced for further safety and durability.
- Precise and Efficient Cutting: This 4.5 cut off wheel for metal is 1/21-inch ultra thin, designed for fast burr-free cutting with minimal material loss, making the cutting project more precise and efficient.
- Versatile Applications: 4.5 inch cut off wheels tough abrasive cutting discs are perfect for super-fast, clean cutting in carbon steel, stainless steel, pipe, iron, copper and all other ferrous metals.
- Friendly Reminder: Please use all necessary protective gear when you use these cutting wheels.(eyes/ears/face/hands/body/etc)
- Thin . 045-Inch wheel design for fast burr free cutting this are easy to use
- This are highly durable this is manufactured in China
- Proprietary aluminum oxide grain combination for aggressive cutting action
- Proprietary material mix ensures durable long life wheels 2 full sheets of fiberglass for durability and safety
- Fast burr free cutting set of 10
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Copyright 2022 General Motors
LLC. All Rights Reserved. Service Bulletin Bulletin No.: 21-NA-165 Date: September, 2022 TECHNICAL Subject: Rattle Noise/Vibration from Under Vehicle Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac CT5 2020 2022 — — 3.0L (RPO LGY) — Involved Region or Country North America, Europe, Middle East, Israel, Cadillac Korea, China Condition Some customers may comment that a rattle noise/vibration can be heard emitting from under the vehicle. Cause 5873316 This condition may be caused by a crack (2) in the brace (1) used to space the exhaust system. Correction If the brace was found to be the cause of the noise or vibration, remove the brace from the exhaust pipe. – The brace is only used to assist installing the exhaust system at the assembly plant and provides no other purpose. Page 2 September, 2022 Bulletin No.: 21-NA-165 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 Note: Do Not remove the exhaust for this repair. Only lower enough to access the brace. 1. Remove the underbody rear air deflector. 2. Remove the floor panel tunnel panel front brace. 5873315 3. Utilizing a support jackstand or equivalent, support the exhaust system. 4. Remove the exhaust floor brace. 5. Loosen the exhaust pipe clamp. 6. Remove the exhaust flange nuts. 7. Remove the four forward most exhaust hangers. 8. Unplug the SQ valves. 9. Lower the exhaust. 5873317 10. Using care, cut the brace as shown in the graphic above. 11. Re-install exhaust system. 12. Reinstall the floor panel tunnel panel front brace. 13. Reinstall the underbody rear air deflector. Parts Information No parts are required for this repair. 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 4088118* Remove Exhaust Cross Support Brace 1.3 hrs *This is a unique Labor Operation for bulletin use only. Version 2 Modified Released July 16, 2021 Revised September 13, 2022 – Added the 2022 Model Year and an Important statement above Service Procedure. 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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