NHTSA ID Number: 10241938
Manufacturer Communication Number: N222375791-08
TSB/Document Date: 2023-09-06
Summary
Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module to restore the Park Assist feature. Note: some vehicles may also require reprogramming of the instrument cluster or the active safety control module.
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)
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
This product presentation was made with AAWP plugin.
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: N222375791-08
Replacement Service Bulletin Number:
MFR Communication Date: 2023-09-05
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6666
URGENT - DISTRIBUTE IMMEDIATELY
Date:
September 5, 2023
Subject: REVISION: N222375791-08 - Customer Satisfaction Program
Park Assist Retrofit
Warranty Information Table Improvements
Models: 2022 – 2023 Buick
Enclave
2022 – 2023 Buick
Encore GX
2022 – 2023 Cadillac
XT4
2022 – 2023 Cadillac
XT5
2022 – 2023 Cadillac
XT6
2022 Chevrolet
Blazer
2022 – 2023 Chevrolet
Camaro
2022 Chevrolet
Colorado
2022 Chevrolet
Silverado 1500 LTD
2022 – 2023 Chevrolet
Silverado 2500HD/3500HD
2022 – 2023 Chevrolet
Trailblazer
2022 – 2023 Chevrolet
Traverse
2022 – 2023 GMC
Acadia
2022 GMC
Canyon
2022 GMC
Sierra 1500 Limited
2022 – 2023 GMC
Sierra 2500HD/3500HD
To:
All General Motors
Dealers
This bulletin has been revised to improve the Warranty Information table and
to simplify the Service Procedure. Please discard all previous copies of
N222375791.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS
Customer Satisfaction Program
N222375791 Park Assist Retrofit
Release Date:
Revision Description:
Attention:
Revision:
08
This bulletin is being revised to improve the Warranty Information table and to simplify
the Service Procedure. Please discard all previous copies of N222375791.
This program is in effect until September 30, 2026.
Make
Buick![]()
Buick![]()
Cadillac![]()
Cadillac![]()
Cadillac![]()
Chevrolet![]()
Chevrolet![]()
Chevrolet![]()
Chevrolet![]()
Chevrolet![]()
Chevrolet![]()
Chevrolet![]()
GMC![]()
GMC![]()
GMC![]()
GMC![]()
September 2023
Model
Enclave
Encore GX
XT4
XT5
XT6
Blazer
Camaro
Colorado
Silverado 1500 LTD
Silverado 2500HD/3500HD
Trailblazer
Traverse
Acadia
Canyon
Sierra 1500 Limited
Sierra 2500HD/3500HD
Model Year
From
To
2022
2023
2022
2023
2022
2023
2022
2023
2022
2023
2022
2022
2022
2023
2022
2022
2022
2022
2022
2023
2022
2023
2022
2023
2022
2023
2022
2022
2022
2022
2022
2023
RPO
Description
Involved vehicles are marked “Open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition
Correction
Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022
and 2023 model year vehicles listed above, built beginning December 2, 2021. The affected vehicle
owners should have been made aware of the condition at sale, and notified, that once parts are available,
they would be eligible for a no additional cost retrofit to enable the feature.
Dealers are to replace the park assist control module to restore the Park Assist feature. Note: some
vehicles may also require reprogramming of the instrument cluster or the active safety control module.
Parts – MUST BE ORDERED BY SPAC, PLEASE SEE NOTES BELOW
Quantity
1
1
1
1+
2++
1+
2*
1**
1***
Part Name
Parking Assist Module
Parking Assist Module
Parking Assist Module
Nut
Nut
Retainer
Nut
Fastener
Thread Locking Adhesive
Part No.
84421595
39156865
84716060
11516836
11546389
20732399
11546449
01605396
19333511 (US) 10953489 (CA)
Obtain locally in compliance w/
GM spec GMW14657
Note: Only 1 module needs to be ordered per vehicle. Use the VIN and the GM Electronic Parts Catalog (EPC) to
determine which parts to order.
+Colorado/Canyon Only
++Encore GX/Trailblazer Only
*For all vehicles with the following exceptions: XT4 only uses 1 nut, No nuts are required for Camaro, Colorado/Canyon
and Encore GX/Trailblazer use different retainers.
**XT4 only.
Copyright 2023 General Motors
. All Rights Reserved.
Page 1 of 17
Customer Satisfaction Program
N222375791 Park Assist Retrofit
***Enclave only, one tube services 10 vehicles.
Do NOT place orders until the customer contacts the dealership to schedule an appointment.
Parts required to complete this recall are to be obtained from General Motors
Customer Care and Aftersales (GMCCA).
Please refer to your “involved vehicles listing” before ordering parts. Parts for this Retrofit will be on Order Writing control
initially and all DRO’s (Daily Replenishment Orders) may cancel. Dealers should place orders CSO (Customer Special
Order) and upgrade to SPAC with a VIN. All orders will be reviewed prior to being filled. All CSO may be cancelled
daily. Only SPAC orders with a valid VIN associated with the vehicle listing will be released while on the order
writing control. Due to order writing control orders will not ship as OVN. Please take this into consideration in
shipping if not coming from your Admin PDC.
Reminder: Parts will be removed from SPRINT, they are non-returnable and may be removed from Retail Inventory
Management (RIM). Dealers should review the affected parts to confirm RIM managed status. Parts may have quantity
limiters in effect.
For Dealers Location Outside of US/Canada, please order from your regional service part facility.
Steps For A Successful Order on Retrofit:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Validate your VIN is open by checking Investigate Vehicle History (IVH)
Validate what part number is needed for the VIN
Verify that this part for this VIN has not been ordered previously by your dealership
Place a CSO order
Upgrade to a SPAC case immediately following placing CSO
Order will be released once VIN information has been verified
One part per VIN
Use the part on the VIN it was ordered for
If an order was cancelled and you are unable to determine why, please seek assistance from your District
Manager Aftersales (DMA)
Warranty Information
Model
Camaro
XT6
XT5
XT4
RPOs
Modules
Labor Code
Labor Time
All Combinations
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
0.8
All Combinations
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
0.8
All Combinations
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
1.6
With UD7
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
9106540*
1.2
Page 2 of 17
Customer Satisfaction Program
N222375791 Park Assist Retrofit
Assist Module,
Setup/Configure
Instrument Cluster
XT4
XT4
Acadia
Acadia
Enclave
Enclave
Blazer
With UD5 without
UGN, UVZ, or UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
1.2
With UGN, UVZ, or
UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster,
Reprogram Active
Safety Control Module
9106630*
1.4
Without UGN, UVZ,
or UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
1.6
With UGN, UVZ, or
UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster,
Reprogram Active
Safety Control Module
9106630*
1.8
Without UGN, UVZ,
or UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster
9106540*
2.6
With UGN, UVZ, or
UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster,
Reprogram Active
Safety Control Module
9106630*
2.8
Without UGN, UVZ,
or UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
9106540*
1.4
Page 3 of 17
Customer Satisfaction Program
N222375791 Park Assist Retrofit
Setup/Configure
Instrument Cluster
Blazer
Colorado/Canyon
Encore GX/Trailblazer
Traverse
Traverse
Silverado/Sierra
Regular Cab
Silverado/Sierra
Double Cab/Crew Cab
With UGN, UVZ, or
UKL
Clear TLC Cache,
Reprogram Parking
Assist Module,
Configure Parking
Assist Module,
Setup/Configure
Instrument Cluster,
Reprogram Active
- Stay Updated with Lifetime Access: This obd2 scanner includes lifetime free software updates for all app service functions. With a single payment, enjoy full access to diagnostics, reset tools, and maintenance features — zero subscription fees. A budget-friendly choice for weekend mechanics, home car owners, and DIYers, supporting vehicles from 1996 onward. Come to us with your VIN to check compatibility.
- Full Bidirectional Control/Active Tests & Stable Wireless Connectivity: This car code reader features full bidirectional control, allowing you to send commands to the vehicle's ECU for active tests on components such as fuel pumps, injectors, A/C clutches, windows, sunroofs, and more. This car scanner diagnostic tool helps DIYers quickly diagnose and test vehicle parts, cutting down troubleshooting and repair time. With BT 4.0 wireless connectivity, you can enjoy cable-free diagnostics up to 33 feet. Stand in your garage and test windows, wipers, or even engine components—all without needing to move around your car.
- Portable Car Scanner with 26 Resets: Scheduled vehicle maintenance with the A30M car diagnostic scanner can keep your vehicle in peak condition and save you big on dealership trips. The XTOOL A30M obd2 scanner diagnostic tool features essential reset and relearn functions, such as Oil Reset, EPB Reset (Electronic Parking Brake Release), SAS, ABS Brake Bleeding, Throttle Body Relearn, Injector Coding, Crank Sensor Relearn, Headlight Adjustment, and Tire Size Reset. Note: Service functions may vary by vehicle model – check compatibility beforehand!
- Wide Compatibility CAN FD & FCA
Autoauth: This obd2 scanner diagnostic tool is compatible with over 85+ car brands from the U.S., Europe, and Asia, providing extensive coverage through a BT connection with your smartphone or iPad. Now upgraded to support the latest protocols, it includes FCA
AutoAuth access for Chrysler
, Jeep
, Dodge
, and Fiat
(2018+), and supports CAN FD for GM (2020+) models, giving you greater access to newer vehicles and systems. Note: The FCA
AutoAuth account is not included with the device. Users must register and pay separately through the official FCA
AutoAuth website to access diagnostic functions for vehicles that require it. - Up to 8 Live Data Streams Graphing – Real-Time Graphing for Deeper Insight: This car scanner supports up to 8 live data streams simultaneously with intuitive, real-time graphing. Gain comprehensive insights into your vehicle’s performance, making it easier to spot issues, detect trends, and make informed diagnostic decisions with confidence.
- Save $500+/Year with Pro-Level Diagnostics -No Subscriptions: The Portable XTOOL Anyscan A30D OBD2 scanner diagnostic tool includes free lifetime software updates for all app service functions, without extra cost. With a single payment, enjoy full access to diagnostics, relearn scan tools, and maintenance features. A cost-effective, smart choice for car owners and DIY enthusiasts, compatible with vehicles from 1996 onward. Please provide the car VIN and the special functions you need in advance so that we can confirm compatibility
- Bi-Directional Control for Faster Troubleshooting: Unlike a basic code reader, the A30D bi directional scan tool sends commands directly to your vehicle’s ECU to actively test components like fuel pump, valves, wipers, windows, doors, sunroof, and headlamps right from your smartphone. See component responses in real time without disassembly—perfect for brake jobs, electrical issues, and hard-to-find problems. This bidirectional obd2 scanner helps pinpoint faults faster, reduce guesswork, and avoid replacing good parts. An efficient, easy-to-use car scanner diagnostic tool built for DIYers, home garage users, and small-shop technicians who want real two-way scanner, not just codes
- 19 Reset Functions for Routine Maintenance: The A30D car diagnostic scanner provides 19 relearn functions without extra charges, including EPB Reset for parking brake replacement, TPMS Reset after tire changes, ABS Auto Bleeding, Oil Reset, SAS Reset, BMS Reset, Throttle Relearn, Injector C0ding, Gear Learning, Crank/Crankshaft/Cam/Ckp Sensor Relearn Tool, Transmission Match, Seat Calibration, Airbag Repair and more. This XTOOL A30D automotive scanner diagnostic tool supports preventive care, helping extend vehicle life and reduce costly shop visits. Functions vary by vehicle make and year—plz confirm compatibility before purchase
- Stable BT Connection & All-System & 8 Pids Live Data: The A30D wireless OBD2 scanner delivers a fast and stable wireless connection up to 33 feet, letting you move freely around the vehicle without tangled cables. Pair with with Android 9.0+ and iOS 10.0+ devices to turn your phone into a mobile auto scanner—perfect for home garages, driveways, or on-the-spot repairs. This full system scanner for cars provides real-time access to all major modules, including Engine, Gearbox, ABS, SRS, AC and more. with clear graphs, meters, and up to 8 PIDs displayed at once. This car code reader makes system monitoring visual, simple, easy to understand, and offering data logging for playback and deeper
- Wide Compatibility with CAN-FD & FCA
Support: The A30D car computer diagnostic reader works with most 1996 and newer vehicles with a standard OBD2 port, including for Ford
, for GM, for Toyota
, for Honda
, for Nissan
,for Hyundai
etc, with ongoing updates covering more car models and functions later. It also supports newer communication protocols like CAN-FD and FCA
AutoAuth (Personal AutoAuth account and active subscription required, not included with the device!for Chrysler
, for Dodge
, for Jeep
, for Fiat
models). It is a future-ready automotive scanner diagnostic tool for households with multiple vehicles or part-time techs. Coverage vary by cars, plz check the compatibility first
- 2026 Latest Version – Now Upgraded from 32GB to 64GB: XTOOL D7 obd2 scanner diagnostic tool with bidirectional is designed for DIY enthusiasts, professional mechanics. It now offers 64GB storage for smoother operation. Its 5000mAh battery (with 2500mAh 7.3V fast-charging) supports all-day use. With FCA
, CAN FD, and DOIP protocol support, it covers more vehicle models and newer systems. A newly added battery voltage reading shows battery status before diagnostics, helping prevent low-voltage tests that could harm the vehicle. The V2.0 Diagnostic Report allows shops to personalize results with logos, customer details, and attachments to build trust and maintain records. - Save $500+/Year with Pro-Level Diagnostics: Whether you're a DIYer, starting a repair business, or beginning work at an auto shop, XTOOL D7 car scanner offers advanced features typically found only in expensive professional OBD2 scanners - without the high price tag. With 4,000+ Active Tests & Bidirectional Pids, 36+ Special Functions, advanced module resets like SRS Reset, OE-level All-System Scan (one-click), FCA
AutoAuth, CAN FD, DoIP, data export, and 8 PIDs graphing, the D7 auto scan tool covers 100,000+ vehicles (excluding Indian
models). Includes 3-Year updates and supports the XV200 endoscope to detect em!ssions and intermittent issues. - Full Bidirectional Advantage Over Other Code Readers & Scan Tools: The XTOOL D7 automotive scanner offers true bidirectional control plus advanced bidirectional PIDs, letting you send commands to components like A/C clutches, fuel injectors, windows, fans and more, while monitoring sensor responses live to catch elusive issues (even those without warning lights). Unlike budget bidirectional obd2 scanners limited to basic active tests,the D7 car fault scanner gives you full bidirectional control to run ABS pump tests, throttle position, turn fan on/off and solenoid tests, etc. No guessing, no extra fees—just smarter diagnostics
- OE-Level Full System Car Diagnostic Scanner with 8 Live Data Graphs: The XTOOL D7 is a pro-grade diagnostic tool that gives you full access to all vehicle systems—just like Snap on scanners & the factory scan tools, it delivers deep, accurate diagnostics you can trust. Easily view live data streams, retrieve freeze frame, and run active tests to pinpoint issues fast. With the ability to graph up to 8 PIDs at once, you can spot performance trends and troubleshoot like a pro. Whether you're a mechanic or car owner, with the D7 auto scanner you can stay ahead of problems and keep your vehicle running at its best
- High-value Automotive Scanner Diagnostic Tool with 36+ Special Function, Module Resets, Relearns, Calibrations, Adaptations & Initializations: XTOOL D7 diagnostic tool packs 36+ common & advanced maintenance, skip the $150 fee for battery registration after replacement, throttle body relearn after cleaning, or TPMS resets post-rotation, Auto bleed after the pad changes, or Electronic Parking Brake. Need to reset the transmission after towing? Crank sensor relearn for GM/for Dodge
? Done. D7 also covered advanced functions like Ad~blue Reset, VIN Write, and many more professional OBD2 scanner functions that we can't list here. Text us your VIN + what you need, we’ll check the compatibility
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API




