WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Jaguar XKR, 2009 Jaguar XK8, 2008 Jaguar XKR, 2008 Jaguar XK8, and 2007 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

When the 'DEF' button is pressed, the automatic temperature control (ATC) module instigates the programmed defrost function. When selected, the automatic temperature control (ATC) module configures the system as follows:

Automatic mode off
Selected temperature unchanged
Air inlet set to fresh air
Air distribution set to windshield
Blower speed set to level 6
Windshield and rear screen heaters on.

The programmed defrost function can be cancelled by one of the following:

Selecting any air distribution switch on the TSD
Pressing the 'AUTO' switch below the TSD
A second press of the 'DEF' button
Switching the ignition OFF

NOTE: The blower speed can be adjusted without terminating the programmed defrost function.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Programmed Defrost

Use the Manual With the Right Hardware

When to See a Mechanic