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:
Power Seats
To adjust a power seat, do any of the following:
• Move the seat forward or rearward by sliding the
control forward or rearward.
• Raise or lower the front part of the seat cushion by
movi ...
Customer Assistance Offices
Buick encourages customers to call the toll-free number
for assistance. However, if a customer wishes to
write or e-mail Buick, the letter should be addressed to:
United States — Customer Assis ...
Security Light
This light will come on
briefly when you turn
the key toward START.
The light will stay on until the engine starts. If the
light flashes, the Passlock® system has entered
a tamper mode. If t ...