Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil.
The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty
See also:
Reclining Seatbacks
WARNING
Sitting in a reclined position when the vehicle is in motion can be dangerous.
Even when buckled up, the safety belts cannot do their job.
The shoulder belt will not be against your body. ...
Safety
Six airbags, including front-seat side-impact and side curtain-type devices,
are standard. All-disc antilock brakes include brake assist. GM's StabiliTrak
electronic stability system is standard. ...
Installing the Crossrails
A. Crossrails
B. Siderail Cover
Before installing the crossrails (A),
remove the siderail covers (B). Pull
straight up on the rear of the siderail
cover. Store covers flat, do not stack
it ...