SERVICE POWER STEERING
This message displays if a problem is detected with the speed variable assist steering system. When this message is displayed, you may notice that the effort required to steer the vehicle increases or feels heavier, but you will still be able to steer the vehicle. See Steering.
See also:
Maintenance Replacement Parts
Replacement parts identified here by name, part number, or specification can
be obtained from your dealer.
...
Powertrain
The DTS is equipped with the technologically advanced Northstar 4.6L V-8
engine and mated to the Hydra-Matic 4T80-E four-speed automatic transmission - a
proven combination that assures powerful, ...
GM Mobility Reimbursement Program (U.S. and Canada)
This program is available to qualified applicants for cost reimbursement of eligible
aftermarket adaptive equipment required for the vehicle, such as hand controls or
a wheelchair/ scooter lift ...