NHTSA ID Number: 10240363
Manufacturer Communication Number: 22-NA-232
TSB/Document Date: 2023-08-03
Summary
This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump.
Bulletin No.:
Service Bulletin
Date:
22-NA-232
August, 2023
INFORMATION
Subject:
Brand:
Diagnostic Tip for 10 Speed Oil Pump Drive Gear
Model:
Model Year:
from
to
CT6
2019
2020
CT4
2020
CT5
2020
Escalade Models
2021
Camaro
2020
2023
Silverado 1500
(New Model)
2019
2019
2020
2021
2022
2022
VIN:
from
to
L3B, LM2,
L84, L87,
LSY, LGX
MHO, MHS,
MHT, MHW,
MHX, MI1, MI2,
MI4, MQA,
MQB, MQC
2023
Silverado LD
Silverado 1500
Chevrolet
Silverado 1500 LTD (RPO J21, VIN
Digit 5 = W/Y)
Silverado 1500 New (RPO J22,
VIN Digit 5 = A)
Silverado 1500
Suburban
Tahoe
Sierra 1500 (New
Model)
2023
2021
2023
2019
2019
2020
2021
2022
2022
Sierra Limited
Sierra 1500
GMC
Sierra 1500 Limited (RPO J21,
VIN Digit 5 = 8/9)
Sierra 1500 - New
(RPO J22, VIN
Digit 5 = H/U)
Sierra 1500
2023
Yukon Models
2021
Copyright 2023 General Motors LLC. All Rights Reserved.
2023
Page 2
August, 2023
Bulletin No.: 22-NA-232
Involved Region or Country
North America, Middle East, Australia, New Zealand
Condition
Some customers may comment that a whine, growl or grind noise from the vehicle.
– This noise may be present at idle and increase in intensity as engine RPM increases.
This condition typically presents itself at approximately 15,000 miles (24140 km) and
higher mileage.
Cause
This condition may be caused by the oil pump drive gears in the transmission.
Information
The noise may be present from the front of the transmission or rear of the engine:
1. Remove the transmission oil pan, valve body and transmission oil pump.
2. Inspect the oil pump driven gear on the oil pump for abnormal wear or tooth
damage.
3. Also inspect the transmission oil pump idler gear for abnormal wear, tooth damage
and side to side movement.
– If gear damage is found on both the driven and idler gear, the driven gear in the front
cover is damaged as well.
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.
Additional Information
Note: Improvements to the oil pump drive and idler
gears were made in the 2022 model year.
On 2022 and newer vehicles or vehicles that recently
had the transmission oil pump drive gears replaced.
Review the following diagnostics prior to removing the
transmission oil pan.
• Correct all Engine and Transmission
related DTC’s.
– Many DTC’s command high line pressure which
will create transmission oil pump whine noise,
which would be considered characteristic.
• Remove the Engine Drive Accessory belt to rule
out any belt driven components.
• Review of the following engine related TSB’s:
19-NA-218, 22-NA-218, PIP5900.
If gear damage and excessive side movement is not
noticed additional diagnostics should performed.
Engine noises are often heard in the transmission
bellhousing.
Note: Noise present engine running in park, in gear
foot on the brake.
Possible engine related or torque converter.
Internal torque converter damage will typically
create debris in the pan.
Noise present with the engine drive accessory belt
removed.
Excessive crankshaft end play.
6196003
Note the damage to the oil pump idler gear.
•
6196006
Bulletin No.: 22-NA-232
August, 2023
Page 3
Note the side-to-side movement in the oil pump
idler gear.
6196005
Note the damage to the oil pump driven gear.
Version
4
Modified
Released November 18, 2022
Revised January 20, 2023 - Added 2020 to CT5 and Added Addition Keywords Section.
Revised June 13, 2023 - Added 2023 to Applicable Vehicles and Updated Additional
Information section.
Revised July 31, 2023 - Added 2020 CT4 and L3B to Engine RPO section.
Additional Keywords: 10L80, 10 Speed
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
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
- Provides performance benefits for high mileage, new and...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 22-NA-232
Replacement Service Bulletin Number:
MFR Communication Date: 2023-07-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.