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SERVICE RECOMMENDATIONS
To help you service your vehicle, we provide scheduled maintenance
information which makes tracking routine service easy.
If your vehicle requires professional service, your authorized dealer can
provide the necessary parts and service. Check your Warranty Guide to
find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
• Do not work on a hot engine.
• Make sure that nothing gets caught in moving parts.
• Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
• Keep all open flames and other lit material away from the battery and
all fuel related parts.
WARNING: Turn off the power running boards, if equipped,
before working under the vehicle, jacking or placing any object
under the vehicle. Never place your hand between the extended
running board and the vehicle. A moving running board may cause
injury.
Working with the engine off
1. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
2. Turn off the engine and remove the key.
3. Block the wheels to prevent the vehicle from moving unexpectedly.
Working with the engine on
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
WARNING: To reduce the risk of vehicle damage and/or
personal burn injuries, do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
Maintenance and Specifications
295
2011 Navigator (nav)
Owners Guide, 1st Printing
USA (fus)