Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push 
, and an Advisor can run a check.
See also:
Returning the Seat to the Seating Position
To return the second row seat to its normal seating position:
1. Remove objects on the floor behind the second row seat or in the seat tracks on the floor.
2. Pull the seatback rearward until it is ...
Auxiliary Taillamp
To replace one of these lamps:
1. Open the liftgate. See Liftgate on page 2‑9.
2. Remove the interior trim access panel.
A. Attachment Nuts
B. Retaining Hook
3. Remove the five attachment ...
End a Call
Push . System responds: “Call ended.” ...