Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information.
See also:
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s
systems and components.
See Recommended Fluids and
Lubricants for
GM approved fluids.
- Engine oil and windshield
washer fluid ...
Special Application
Services
- Vehicles with manual
transmissions: Every two years
drain, flush, and fill clutch
hydraulic system.
- Severe Commercial Use
Vehicles Only: Lubricate
chassis components every
5 000 km/3, ...
Interior
Five occupants get to enjoy soft all-leather seats. Offerings include heated
and ventilated seating and a heated steering wheel. The STS features genuine
eucalyptus wood and aluminum trim.
Eight ...






