Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
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 v ...
Tips and Troubleshooting Chart
...
Sedan or Coupe
To lower one or both of the rear
seatbacks:
1. Pull forward on the tab, on the
outboard side of the seatback,
to unlock the seatback.
2. Fold the seatback down.
This allows access to the tr ...