CADILLAC, CHEVROLET, GMC · 2025-05-05
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.
U1962 · Manufacturer communications
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
U1962 ← What does this code mean?13 Results
CHEVROLET · 2025-05-05
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 module.
CHEVROLET · 2025-04-04
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 · 2025-02-03
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 body control module.
CHEVROLET · 2025-01-29
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 with the Malfunction Indicator Light (Check Engine Light) illuminated even if the condition resolves. Clearing the DTC with a service tool will not clear the permanent status of the DTC which could result in an emissions Inspection/Maintenance (I/M) test failure. Dealers are to reprogram the ECM.
CADILLAC, CHEVROLET, GMC · 2025-01-10
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 to correct this issue.
CHEVROLET, GMC · 2024-11-15
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 U0485, U1962 Set.
CADILLAC, CHEVROLET, GMC · 2024-11-12
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 to correct this issue.
BRIGHTDROP · 2024-08-22
This service bulletin provides repair information to correct a dealer concern of DTC U1962 Unable to Authenticate Serial Data Message.
CHEVROLET, GMC · 2024-07-30
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 · 2024-07-12
This informational bulletin provides information for dealers/technicians on Powertrain Control Module Fails Key Provisioning/Serial Data Authentication Configuration and Sets DTC U1962.
CADILLAC · 2023-02-09
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 · 2020-09-17
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 and U1962 are set. The malfunction indicator light (MIL) may illuminate. Reprogram the front view camera.