OnStar Services

See also:

When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles dr ...

Hood
To open the hood: 1. Pull the handle with this symbol on it. It is located inside the vehicle to the left of the brake pedal. 2. Go to the front of the vehicle and locate the secondary hood rele ...

Engine Cooling System Messages
ENGINE HOT A/C (Air Conditioning) OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gauge on page 5‑14. To ...