See also:

Reprogramming Universal HomeRemote Buttons
You can reprogram any of the three buttons by repeating the instructions. ...

Accessories and Modifications
When you add non-GM accessories to your vehicle they can affect your vehicle’s performance and safety, including such things as, airbags, braking, stability, ride and handling, emissions systems, ...

First Engine Oil Change After Every 40 000 km/25,000 Miles
• Fuel system inspection for damage or leaks. ...