NHTSA ID Number: 10202388
Manufacturer Communication Number: PIT5851
Summary
This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.
Condition
Some dealerships may comment that after a module is replaced and programmed, the odometer may display zero miles or the incorrect mileage. This condition is also accompanied with any of the following current DTC’s: U1973, U197E, U197F, U2A90, U2A91, U1978, and/or U197F.
Cause
This condition may be caused if the VIN or mileage fails to write to the odometer.
Correction:
If you experience this condition, do NOT replace any further modules or swap any modules from a like vehicle as this can make it more difficult to repair the condition.
If unnecessary module replacement or module swapping is found, the repairs may not be covered under warranty.
To correct this condition, engineering will need to be involved.
Please create a case with the Technical Assistance Center (TAC) and document the issue including: customer’s original issue, any part(s) replaced, programming error codes, current DTC’s, what the odometer displays, this PI number and any additional details. TAC will engage engineering to correct this concern.
18 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | ENVISION | 2021-2022 |
| CADILLAC | CT4 | 2020-2022 |
| CADILLAC | CT5 | 2020-2022 |
| CADILLAC | ESCALADE ESV | 2021-2022 |
| CHEVROLET | CORVETTE | 2020-2022 |
| CHEVROLET | SUBURBAN | 2021-2022 |
| CHEVROLET | TAHOE | 2021-2022 |
| GMC | YUKON XL | 2021 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5851
Published date: 09/7/2021
Reprogramming
GM Diagnostic/Programming (TIS2Web)
Approved J2534 Device with TIS2WEB can reprogram 1996 and later All GM Modules.
To obtain the latest electronic controller calibration information for your vehicle, go to https://tis2web.service.gm.com/tis2web and enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID’.
You can then compare the latest part number with the actual number installed on the vehicle to determine if a reprogram is needed.
The Service Programming System (SPS) application is part of the TIS2Web system. To program an ECU, the SPS application must communicate with the vehicle control modules using the proper J2534 programming interface tool.
The Tech 2 supports model years 1996 and beyond. With the addition of the CAN Diagnostic Interface (CANdi) module, Tech 2 is fully backward compatible with current Tech 2 functionality and operates transparently when diagnosing non-CAN-equipped vehicles.
Servicing the next generation Global A vehicles will require the diagnostic software, GDS2, Global Diagnostic System 2 running on a local PC device while the MDI is connected to the vehicle. The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Click here to view a list of GDS supported vehicles.
www.acdelcotds.com
- Advanced VCI Box, Industry-leading J2534 Pass-Thru Technology: This J2534 Pass-Thru Programmer is designed espically for technicians, independent shop owners, and DIY enthusiasts, enables fast, reliable computer-based programming. It supports all J2534 protocols—including the latest DoIP and CAN FD—ensuring full compatibility with both legacy and next-generation vehicles.
- High-Speed OEM-Level Diagnostics & Programming: Unlock true OEM functionality with comprehensive system diagnostics, guided troubleshooting, coding, adaptations, resets, and programming—all designed to slash repair time. This all-in-one tool eliminates the need for multiple OEM devices, boosting efficiency and cutting costs. Equipped with High-Speed USB, it delivers 10x more data per second than competing solutions
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- User-Friendly RLink Platform & Expert Support: TOPDON’s proprietary driver management platform offers a clean interface and lifetime free updates. Access a rich library of real-world case studies to stay ahead of the curve. Backed by a support team with 10+ years of J2534 and automotive repair experience, we provide one-on-one assistance to resolve any technical issue.
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J2534 diagnostic tool features a 6.6ft USB 2.0 Cable and a 1.2 ft OBDII Extension Cable, allows to connection your computer easily outside the vehicle. The included handled carry case offers easy portability, storage, and hanging options—keeping your gear clean and ready to go, anywhere.
- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 18 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen/Audi, Mercedes-Benz, and BMW. NOTE: Not compatible with Ford IDS diagnostic software
- All-in-One OEM Diagnostics: This J2534 ECU programming tool elevates your automotive repair capabilities to new heights by delivering complete OEM diagnosis. Boasting comprehensive full-system diagnostics, intuitive repair guides, advanced ECU programming and coding, common reset services, a vast library of repair information and more, this all-in-one solution empowers technicians to effortlessly tackle complex vehicle issues with ease. *Not compatible with 24V vehicles
- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
- Integrated Excellence, Always Up-to-Date: Featuring the exclusive RLink Platform to provide a streamlined experience with one-click driver installation and management, ensuring flawless integration with your OE software, maintaining the original performance quality. The built-in operation guide makes mastering OE software quick and easy, so you can get started right away. Plus, with lifetime free updates, your diagnostics will stay current with the latest drivers and innovations
- Efficiency Meets Versatility: Engineered to support three CAN channels simultaneously - CAN FD and CAN-CC included, giving you the edge in fast troubleshooting. To perfectly synchronized with the OE software, please diagnose with active subscriptions and make sure your computer system is running a compatible 64-bit Windows version (7, 8, 10 or later) to fully leverage the power of RLink J2534. *We don't provide extra OE software
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
Last update on 2026-06-07 / Affiliate links / Images from Amazon Product Advertising API
SEOCONTENT-START
Bulletin No.: PIT5851
Published date: 09/7/2021
Preliminary Information PIT5851 Odometer Displays Zero or Incorrect Mileage After Programming DTCs U1973 U197E U197F U2A90 U2A91 U1978
and/or U197F
Models Brand: Buick Envision Model: Model Years: 2021 – 2022 VIN:
from to
All All Engine: All All Transmissions: Cadillac Cadillac Cadillac Chevrolet Chevrolet Chevrolet GMC Escalade Models CT4
CT5
Corvette Suburban Tahoe
Yukon Models 2021 – 2022
2020 – 2022
2020 – 2022
2020 – 2022
2021 – 2022
2021 – 2022
2021 All All All All All All All All All All All All All All All All All All All All All All All All All All All All Involved Region or Country Condition Cause All Regions
Some dealerships may comment that after a module is replaced and programmed, the odometer may display zero miles or the incorrect mileage. This condition is also accompanied with any of the following current DTC’s: U1973, U197E, U197F, U2A90, U2A91, U1978, and/or U197F.
This condition may be caused if the VIN or mileage fails to write to the odometer.
Correction:
If you experience this condition, do NOT replace any further modules or swap any modules from a like vehicle as this can make it more diffcult to repair the condition.
If unnecessary module replacement or module swapping is found, the repairs may not be covered under warranty.
To correct this condition, engineering will need to be involved.
Please create a case with the Technical Assistance Center (TAC) and document the issue including: customer’s original issue, any part(s) replaced, programming error codes, current DTC’s, what the odometer displays, this PI number and any additional details. TAC will engage engineering to correct this concern.
Version History
Version 1
Modified 09/07/2021 – Created on © 2021 General Motors. All Rights Reserved.
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