Engine Oil Additives / Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M 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:
2.4L L4 Engine
There is a engine coolant
temperature warning light on the
instrument panel cluster that
indicates an overheated engine
condition. See Engine Coolant
Temperature Warning Light for more infor ...
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF
in each shift lever position.
The ignition should turn to LOCK/OFF only when the shift lever is in P (Park).
...
Reporting Safety Defects toGeneral Motors
In addition to notifying NHTSA (or Transport
Canada) in a situation like this, we certainly hope
you will notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Cente ...