Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating – 2019-2020 Chevrolet 6500HD

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May 13, 2021 NHTSA CAMPAIGN NUMBER: 21V346000

Engine Control Module Calibrated Incorrectly

Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.

 

NHTSA Campaign Number: 21V346

Manufacturer General Motors, LLC

Components ENGINE AND ENGINE COOLING

Potential Number of Units Affected 196

 

Summary

General Motors, LLC (GM) is recalling certain 2019-2020 Chevrolet 6500HD vehicles. The engine control module (ECM) was calibrated incorrectly, allowing the vehicle to exceed the tires’ maximum speed rating of 75 mph.

 

Remedy

Dealers will update the ECM software, free of charge. Owner notification letters were mailed June 7, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020. GM’s number for this recall is N202325530.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Vehicle has a Recall

 


Condition

General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2019-2020 model year Chevrolet Medium Duty 6500HD trucks built with tires with a maximum speed rating of 75mph (regular production option (RPO) codes XDV for the front tires and YAP for the rear tires) and engine control module software that limits the speed of the vehicle to 79 mph. If vehicle speed exceeds the maximum tire rated speed, the tire structure could be compromised, ultimately increasing the risk of tire failure and of a crash.

 

Correction

Dealers will update the software calibration for the engine control module (ECM) to set the speed limiting software so that the vehicle speed will not exceed 75 mph and therefore meet the maximum speed rating of the tires.

 

Parts

No parts are required for this repair.

 

Service Procedure

1. Reprogram the Engine Control Module. Refer to K20 Engine Control Module: Programming and Setup in SI. Modify
as required (e.g., select x module from the controller screen. Then provide step-by-step instructions or refer to SI
procedure.

 


Frequently Asked Questions (FAQs) for Safety Recall N202325530 Speed Limiting Exceeds Tire Rating

 

These questions and answers are being provided to help GM dealers respond to inquiries from involved vehicle owners about the Safety recall identified above.

 

Q1) Which vehicles are involved?

2019 – 2020 model year Chevrolet Silverado 6500HD

 

Q2) What is the issue or condition?

General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2019-2020 model year Chevrolet Medium Duty 6500HD trucks built with tires with a maximum speed rating of 75mph (regular production option (RPO) codes XDV for the front tires and YAP for the rear tires) and engine control module software that limits the speed of the vehicle to 79 mph.

 

Q3) What symptoms may be experienced?  What warning signs may be associated with the issue or condition described?

None.

 

Q4) What is the remedy/repair?

Dealers will update the software calibration for the engine control module (ECM) to set the speed limiting software so that the vehicle speed will not exceed 75 mph and therefore meet the maximum speed rating of the tires.

 

Q5) What is the safety risk?  Is the vehicle safe to drive?

If vehicle speed exceeds the maximum tire rated speed, the tire structure could be compromised, ultimately increasing the risk of tire failure and of a crash.

 

Q6) Does the customer have to pay for this remedy/repair?

No, this inspection/repair will be done at no cost to the customer.

 

Q7) Is the remedy/repair available now?

Yes, please see the attached bulletin for details.

 

Q8) What should customers do until recall repairs can be completed?  Are there any special instructions?

If special instructions are provided, they will be included in the notification letters to customers.

 

Q9) How can customers check to see if their vehicle is involved in this field action?

Customers who own a vehicle involved in the field action will be notified by mail by General Motors, but they may also check their Vehicle Identification Number (VIN) for field actions in GM Owner Center at https://my.gm.com/recalls or via NHTSA’s website at https://vinrcl.safercar.gov/vin/.

 

Q10) If customers are concerned, can they get a rental car or courtesy transportation?

Courtesy transportation is available for customers whose vehicles are involved in this recall and are within the warranty coverage period for the warranty which is associated with this recall.  Please refer to Warranty Administration Bulletin #17-NA-073:  Field Action Courtesy Transportation Policy for further information.

 


 


2 Affected Products

Vehicle

MAKE MODEL YEAR
CHEVROLET SILVERADO 6500HD 2019-2020

 


12 Associated Documents

Manufacturer Notices(to Dealers,etc) – Dealer Message re N202325530-01 – Safety Recall Speed Limiting Exceeds Tire Rating Customer Letter Added

RCMN-21V346-9775.pdf 56.682KB

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Defect Notice 573 Report

RCLRPT-21V346-4832.PDF 214.232KB

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Manufacturer Notices(to Dealers,etc) – Dealer Message re N202325530 – Safety Recall Speed Limiting Exceeds Tire Rating

RCMN-21V346-8677.pdf 59.954KB

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Safety Bulletin

RCSB-21V346-1204.pdf 537.725KB

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Miscellaneous Document – Frequently Asked Questions (FAQs) for Safety Recall N202325530 Speed Limiting Exceeds Tire Rating

RMISC-21V346-6406.pdf 101.606KB

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Recall Acknowledgement

RCAK-21V346-5760.pdf 645.005KB

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Safety Bulletin – Bulletin re N202325530 Speed Limiting Exceeds Tire Rating

RCSB-21V346-0818.pdf 559.784KB

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Miscellaneous Document – Frequently Asked Questions (FAQs) for Safety Recall N202325530 Speed Limiting Exceeds Tire Rating

RMISC-21V346-4287.pdf 101.606KB

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Recall Quarterly Report #1, 2021-2

RCLQRT-21V346-6766.PDF 211.135KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-21V346-1957.pdf 78.398KB

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Recall Quarterly Report #3, 2021-4

RCLQRT-21V346-7817.PDF 211.319KB

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Recall Quarterly Report #2, 2021-3

RCLQRT-21V346-9222.PDF 211.231KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V346&docType=RCL

 


 

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 following are the supported interface tools:

 
 
 
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Bosch Automotive Tools MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability for OEM Reprogramming and Diagnostics on GM, Ford, FCA, Nissan/Infiniti, Honda/Acura, and Toyota/Lexus Vehicles
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light CarDAQ-M Auto Universal Diagnostic Scanner and Programming Tool VSI J2534
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light RAP2 OEM J2534 Remote Reprogramming Tool
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Drew Technologies (DRWMONGGM) Mongoose GM Vehicle Interface (VPW/CAN) J2534
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Mongoose-Plus J2534 OEM Vehicle Interface Cable - GM OEM Reprogramming and Diagnostics
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Autel MaxiFlash Elite VCI J2534 Pass-Thru ECU Programming Tool
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Mongoose-Plus J2534 OEM Vehicle Interface Cable - OEM Reprogramming and Diagnostics for GM
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light BOSCH Automotive Tools MTECH2 Mastertech II J2534 VCI
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light VXDIAG VCX Nano Compatible for GM/OPEL with GDS2 and Tech2WIN System Diagnostic Tool
Product Safety Recall N202325530 Speed Limiting Exceeds Tire Rating - 2019-2020 Chevrolet 6500HD | small light GODIAG J2534

 

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

 


 

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