See also:

If Steam Is Coming From Your Engine
CAUTION: Steam from an overheated engine can burn you badly, even if you just open the hood.Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

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, if ...