Special Application Services
- Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
- Have underbody flushing service performed once a year.
See also:
Lumbar Adjustment
Lumbar Adjustment
If available, press and hold the front
or rear of the control to increase or
decrease lumbar support.
To raise or lower lumbar support,
press and hold the top or bottom of ...
Manual Seats
WARNING:
You can lose control of the vehicle if you try to
adjust a manual driver’s seat while the vehicle is
moving. The sudden movement could startle and
confuse you, or make you push a ped ...
Transferring Service
Push to request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has chan ...
