NHTSA ID Number: 10224828
Manufacturer Communication Number: 22-NA-196
Summary
This informational bulletin advises the technician that it’s possible that the wrong generator may have been installed if found recently replaced which can cause the customer’s concern.
Condition
Some customers may comment that when starting the engine from the RUN power mode, the engine will idle at low RPMs (400 RPMs) and there will be no throttle response.
Cause
This condition may be caused by the wrong generator installed.
Information
Check IVH to verify if the generator has been replaced:
– Generator part number 13539731 is released for 2022 LM2 with J21 engineering model year
– Generator part number 13540929 is released for 2022 LM2 with J22 engineering model year
If it was found that the J1 vehicle had the incorrect J2 generator installed, replace the generator with the part number indicated above, per engineering model year.
2 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
Bulletin No.: 22-NA-196
Date: October, 2022
MC-10224828-0001.pdf 492.324KB
- 100% newly manufactured as an exact replacement for your GM vehicle's original alternator
- Components are tested to meet original specification requirements for remarkable durability
- GM recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specifications for fit, form, and function
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- POWER YOUR HOT ROD UPGRADES: 105A output (+40% over stock) handles electric fans, killer sterfor EOS, and off-road lights. No more dimming headlights at idle!
- Newly manufactured as an exact replacement for your GM vehicle's original alternator
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- 100% newly manufactured as an exact replacement for your GM vehicle's original alternator
- Components are tested to meet original specification requirements for remarkable durability
- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specifications for fit, form, and function
- Remanufactured using consistent quality processes; not just rebuilt
- Alternators use high-quality bearings with high-temp lubricant and double-lipped rubber seals, reducing friction, vibration, and noise
- Rotors and stators are electronically tested and then sealed with secondary insulating coating to help prevent shorts
- Performance-tested and inspected to ensure they meet your expectations for quality design and component specifications
SEOCONTENT-START
Copyright 2022 General Motors
LLC. All Rights Reserved. Service Bulletin Bulletin No.: 22-NA-196 Date: October, 2022 INFORMATION Subject: Information on Low Engine RPM with No Throttle Response Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Silverado LTD (RPO J21, VIN Digit 5 = W/Y) 2022 2022 LM2 GMC Sierra Limited (RPO J21, VIN Digit 5 = 8/9) Involved Region or Country North America Condition Some customers may comment that when starting the engine from the RUN power mode, the engine will idle at low RPMs (400 RPMs) and there will be no throttle response. Cause This condition may be caused by the wrong generator installed. Information Check IVH to verify if the generator has been replaced: – Generator part number 13539731 is released for 2022 LM2 with J21 engineering model year – Generator part number 13540929 is released for 2022 LM2 with J22 engineering model year If it was found that the J1 vehicle had the incorrect J2 generator installed, replace the generator with the part number indicated above, per engineering model year. 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. Version 1 Modified Released October 04, 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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