Customer Satisfaction Program
Chevrolet technical service bulletin N202317390 for 2021 Chevrolet Tahoe, 2021 Chevrolet Suburban and 2021 GMC Yukon and others.
- Bulletin number
- N202317390
- Component
- Service brakes, air: antilock: control unit/module
- Summary
- Customer Satisfaction Program - Certain vehicles may have a condition in which the brake system control module (BSCM) may set and latch an internal fault in the module?s on-board diagnostics (OBD) buffer. When the fault is present, no malfunction indicator lamp (MIL) is illuminated and there is no driver information center (DIC) message. If an over the air (OTA) software update is pushed to an OBD module and the customer accepts it through the Infotainment system, the update will fail because the presence of the active fault will block the OTA update. The customer may notice that the OTA update has failed with an error message on the DIC. This fault is not visible through dealer tools. Dealers are to reprogram the BSCM.
Owners of these vehicles have filed 52 complaints in the brakes category.
Vehicles covered
- Chevrolet Tahoe 2021 2021
- Chevrolet Suburban 2021 2021
- GMC Yukon 2021 2021
- GMC Yukon XL 2021 2021
- Cadillac Escalade Na 2021 2021
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