NHTSA recall 21V346000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 21V346000 |
| Manufacturer's number | N202325530 |
| Manufacturer | General Motors, LLC |
| Reported | 2021-05-13 |
| Owners notified | 2021-06-07 |
| Component | ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE |
| Units potentially affected | 196 |
| Part numbers | 12711272-73, 12711280, 12711868-69, 12711876-77, 12711884, 12712876-77, 12712884-85, 12712892, 12704406-07, 12704414, 12706383, 12706391, 12706398, 12706459, 12708709, 12710634, 12711264-65, 12701032, 12701033, 12701040-41, 12701048, 12701250, 12702471-72, 12702479-80, 12702487, 12704398-99, 12684346-47, 12684354-55, 12684371, 12684416, 12698996-97, 12699004-05, 12699012, 12699062 |
| Report | Annual report 3, for 2025 quarter 2 to 2026 quarter 1 |
|---|---|
| Filed with NHTSA | 2026-04-10 |
| Vehicles in the campaign | 196 |
| Reported remedied | 182 (92%) |
| Reported unreachable | 0 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 1, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
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.
What can happen
Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.
The 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.
| 2019 CHEVROLET 6500 | |
|---|---|
| 2019 CHEVROLET SILVERADO 6500 | Listed as a series or trim of this model. |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| PIT5687A | 2024-02-12. Service bulletin. This Preliminary information communicates some diagnostic tips to inspect for no/low voltage at the ECM for a customers complaints of a SES MIL, Crank No Start, stalling DTC's: P16A7 and/or P16AF. |
|---|---|
| PIP5628F | 2023-05-15. Service bulletin. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| N222372592 | 2023-01-07. Service bulletin. Service Update. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18°C (0°F) or less). Dealers will install a radiator air front lower baffle and, if necessary, reprogram the Engine Control Module. |
| 21NA113 | 2022-06-21. Service bulletin. This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator. |
| 20NA090 | 2022-06-21. Service bulletin. This informational bulletin provides a way for the technician to identify if the ECM has been modified. |
| 20NA197 | 2022-05-31. Service bulletin. This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern. |
| 21NA257 | 2022-02-14. Service bulletin. This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set. |
| 21NA256 | 2022-02-14. Service bulletin. This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set. |
| N212333800 | 2021-08-09. Service bulletin. Emission Recall. General Motors has decided to conduct a voluntary emissions recall involving certain vehicles equipped with a performance air intake system (LPO RVK or 5W7). The Engine Control Module (ECM) may not have been programmed with the calibrations appropriate for the performance air intake system installed on the engine in these vehicles. Dealers will reprogram the ECM. |
| 21NA139 | 2021-08-09. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set. |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.