See also:

How to Check Lubricant
To get an accurate reading, the vehicle should be on a level surface. A. Fill Plug B. Drain Plug When the differential is cold, add enough lubricant to raise the level from 0mm (0 in) to 3. ...

Leaving the Vehicle with the Engine Running
WARNING It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set. And, ...

Safety
The CTS sedan performed well in crash tests conducted by the Insurance Institute for Highway Safety and the National Highway Traffic Safety Administration. It received the IIHS' 2012 Top Safety Pi ...