Driving and Operating

Filling the Tank

~2min read

Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended when refueling the vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump; never let children pump fuel.

The cap is behind a locking fuel

The cap is behind a locking fuel door on the passenger side of the vehicle.

To open the fuel door, push the rearward center edge in and release and it will open.

To remove the tethered fuel cap, turn it slowly counterclockwise.

While refueling, hang the tethered fuel cap from the hook on the fuel door.

If the fuel cap is not installed properly, the TIGHTEN GAS CAP message will appear on the Driver Information Center display. See Fuel System Messages.

When reinstalling the cap, turn it clockwise until it clicks once, otherwise the Malfunction Indicator Lamp could turn on.

See Malfunction Indicator Lamp.

Then unscrew the cap all the way.

Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible.

See Exterior Care.

When replacing the fuel cap, turn it clockwise until it clicks once.

Make sure the cap is fully installed.

The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp.

Notice: If a new fuel cap is needed, be sure to get the right type of cap from your dealer.
The wrong type of fuel cap might not fit properly, might cause the malfunction indicator lamp to light, and could damage the fuel tank and emissions system.
See Malfunction Indicator Lamp.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.