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/3,000 mi.
- Have underbody flushing service performed once a year.
See also:
Calling for Service
When calling Roadside Service,
have the following information
ready:
- Your name, home address, and
home telephone number.
- Telephone number of your
location.
- Location of the vehicle.
- ...
Place a Call Using a Stored
Number
1. Push . System responds:
“OnStar ready.”.
2. Say “Call <name tag>.”.
System responds: “OK,
calling <name tag>.” ...
Sunroof
A. Open or Close
B. Vent
On vehicles with a sunroof, the sunroof only operates when the ignition is in
the ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active. See
Retain ...