CADILLAC, CHEVROLET, GMC
Reported code forms U1962
This Preliminary information communicates an issue with an SES MIL and BCM DTC U1962 and ECM P00FF set. Dealers are to reprogram the BCM with the lastest calibrations.
HomeU1962 · Manufacturer communications
U1962 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CHEVROLET
Reported code forms U1962
Certain vehicles listed above may have a condition in which the Body Control Module (BCM) may not properly clear the DTC U1962 (Unable to Authenticate Serial Data Message). Dealers are to reprogram the body control…
CHEVROLET
Reported code forms U1962
This Preliminary information communicates a concern of a false DTC: U1962 setting in the BCM due to a software Anomaly and to ignore this DTC at this time.
CHEVROLET
Reported code forms U1962
Service Updated - Certain vehicles listed above may have a condition in which the Body Control Module (BCM) may not properly clear the DTC U1962 (Unable to Authenticate Serial Data Message). Dealers are to reprogram the…
CHEVROLET
Reported code forms U1962
Service Update. The Engine Control Module (ECM) in certain vehicles may not properly clear the DTC U1962 (Unable to Authenticate Serial Data Message). If a communications fault were to occur, the DTC will remain set…
CADILLAC, CHEVROLET, GMC
Reported code forms U1962
This Preliminary information communicates an issue with an SES MIL and BCM DTC U1962 and ECM P00FF set. Dealers are to perform a clear DTC's and if necessary perform a Serial Data Authentication Configuration procedure…
CHEVROLET, GMC
Reported code forms U1962
This engineering information (EI) closure ends the need for requesting further information from technicians in regard to the Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC) with DTCs…
CADILLAC, CHEVROLET, GMC
Reported code forms U1962
This Preliminary information communicates an issue with an SES MIL and BCM DTC U1962 and ECM P00FF set. Dealers are to perform a clear DTC's and if necessary, perform a Serial Data Authentication Configuration procedure…
BRIGHTDROP
Reported code forms U1962
This service bulletin provides repair information to correct a dealer concern of DTC U1962 Unable to Authenticate Serial Data Message.
CHEVROLET, GMC
Reported code forms U1962
This informational bulletin provides information for dealers/technicians on Powertrain Control Module Fails Key Provisioning/Serial Data Authentication Configuration and Sets DTC U1962.
CHEVROLET, GMC
Reported code forms U1962
This informational bulletin provides information for dealers/technicians on Powertrain Control Module Fails Key Provisioning/Serial Data Authentication Configuration and Sets DTC U1962.
CADILLAC
Reported code forms U1962
This Preliminary information communicates that a U1962 may be found setting current in the Image Processing Module 1 Processor 2 with no MIL or service messages.
CADILLAC
Reported code forms U1962
Service Update Bulletin - Certain 2020 model year Cadillac CT4 and CT5 vehicles may have a condition where the front windshield camera module may reset and lose communication with other modules. DTCs P25A2, U0265, U0566…