TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle access to all of the OnStar services, except Virtual Advisor and OnStar Turn-by-Turn Navigation.
See also:
What to Use
Refer to Recommended Fluids and Lubricants on page 11‑12 to determine what kind of lubricant to use. ...
Engine Air Cleaner/Filter
See Engine Compartment Overview on page 10‑6 for the location of the engine air
cleaner/filter. ...
When the System Does Not Seem To Work Properly
The rear vision camera system might not work properly or display a clear image if:
• The RVC is turned off.
See “Turning the Rear Camera System On or Off” earlier in this section.
• It is d ...





