No Fob Detected Message on Driver Information Center (DIC) with No Crank/No Start – 2020-2021 Buick Cadillac Chevrolet GMC

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NHTSA ID Number: 10205567

Manufacturer Communication Number: 21NA244

 

Summary

This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center (DIC) and/or No Crank / No Start condition.

 

 


12 Affected Products

Vehicles

MAKE MODEL YEAR
BUICK ENVISION 2021
CADILLAC CT4 2020-2021
CADILLAC CT5 2020-2021
CADILLAC ESCALADE 2021
CADILLAC ESCALADE ESV 2021
CHEVROLET CORVETTE 2021
CHEVROLET SUBURBAN 2021
CHEVROLET TAHOE 2021
GMC YUKON 2021
GMC YUKON XL 2021

 


Condition

Some customers may comment on a No Crank / No Start condition with a “No Fob Detected” message on the DIC. The Remote Keyless Entry (RKE) key fob will also not be detected in the backup pocket. Key fobs will work actively (button press) but not passively. There are no current passive antenna or Immobilizer DTCs set in the Body Control Module (BCM). The vehicle will have battery power (battery state of charge above 12 volts) but will not power mode to the RUN or Accessory position, which will not allow the transmission to be shifted from Park. Also, the parking brake may be engaged and not be able to be released.

 

Cause

It has been determined that an internal BCM fault causes the fobs to not be recognized and loss of immobilizer.

 

Note: It may be possible to recover the vehicle from this condition by performing a battery disconnect / reset, allowing the vehicle’s modules to completely power down.

 



1 Associated Document

Manufacturer Communications

Bulletin No.: 21-NA-244
Date: November, 2021

https://www.nhtsa.gov/recalls?nhtsaId=10205567

MC-10205567-9999.pdf 510.98KB

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NHTSA ID Number: 10202389

Manufacturer Communication Number: PIT5841A

 

Summary

This Preliminary information communicates information on a No Crank / No Start concern caused by a No Fob Detected message caused by an internal fault of the BCM. Dealer is to replace the BCM to correct this concern.

 

1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5841A
Published date: 09/8/2021

https://www.nhtsa.gov/recalls?nhtsaId=10202389

MC-10202389-9999.pdf 102.664KB

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