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Refer to the following chart for information regarding the
factory-equipped trailer tow connector:
Trailer tow connector
Color Function Comment
1. Dark Green Trailer right-hand
turn signal
Circuit activated when brake
pedal is pressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn
signal
Circuit activated when brake
pedal is pressed or when
ignition is on and left-hand
turn signal is applied.
3. Tan/White Tail lamp Relay controlled circuit
activated when the park
lamps/headlamps are on.
4. White Ground Matching vehicle circuit returns
to battery’s negative ground.
Driving while you tow
When towing a trailer:
• To ensure proper “break-in” of powertrain components, do not trailer
tow during the first 1,000 miles (1,600 km) of a new vehicle.
• To ensure proper “break-in” of powertrain components during the first
500 miles (800 km) of trailer towing, drive no faster than 70 mph
(113 km/h) with no full throttle starts.
• Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
• Consult your local motor vehicle speed regulations for towing a trailer.
• To eliminate excessive automatic transmission shifting, use a lower
gear. This will also assist in transmission cooling. For additional
information, refer to Automatic transmission operation in the
Driving chapter.
• Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gauge in the Instrument Cluster
chapter.
Tires, Wheels and Loading
155
2010 Ranger (ran)
Owners Guide, 1st Printing
USA (fus)