Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Cadillac for this TSB. Call your local Cadillac dealer's service department & ask for a copy of TSB# 17-NA-284.
Reduced Steering Assist Message with DTC C0460 Sym 5A
Condition
Some customers may comment on a Reduced Steering Assist message on the DIC with
no loss of steering assist.
During diagnosis a technician may find DTC C0460 Sym 5A.
Cause
The condition is due to Steering Angle Sensor trim error.
Note: The calibration allows for an error to set without actual loss of assist.
Correction Reprogram the Power Steering Control Module.