2009 Nissan Towing Guide    20 HILLS – UPGRADES 
As the incline increases, your vehicle — if equipped with an automatic transmission — is 
designed to automatically select the correct gear for the best towing comfort and 
performance. To maintain speed or avoid up and down shifts, manually shift to a lower gear as 
needed.  
The added weight of a trailer places an increased load on the engine and cooling system, 
so monitor your coolant temperature gauge and automatic transmission fluid temperature 
gauge (if equipped) very carefully. At the first sign of overheating, pull to the side of the road. 
See IF YOUR ENGINE OVERHEATS later in this section for more information. 
 
HILLS – DOWNGRADES 
While going downhill, the weight of the trailer pushing on the tow vehicle may decrease 
overall stability. Therefore, to maintain adequate control, reduce your speed and shift to a 
lower gear. If your vehicle is equipped with Tow Mode, see your vehicle owner’s manual for 
information about the use of this function. 
Avoid long or repeated use of the brakes when descending a hill, as this reduces their 
effectiveness and could cause overheating. Shifting to a lower gear instead provides “engine 
braking” and reduces the need to brake as frequently. 
 
AUTOMATIC CRUISE CONTROL 
Do not use cruise control while towing a trailer. 
 
IF YOUR ENGINE OVERHEATS 
A moderate increase in engine operating temperature is normal when towing a trailer. If, 
however, the coolant temperature gauge reading is abnormally high, or if you are experiencing 
a significant loss of power, or if you hear unusual engine noises,* the engine may be 
overheating and you should immediately take the following steps: 
 
1.  Pull your vehicle safely over to the side of the road, out of traffic. Apply the parking brake 
and move the gearshift lever to NEUTRAL (manual) or PARK (automatic). DO NOT STOP 
THE ENGINE. 
 
2.  Turn off the air conditioning and, after opening all the windows, turn the heater on to 
maximum hot and the fan to its highest speed. The heater core in your vehicle is just like a 
miniature engine radiator and will provide an extra cooling surface to help reduce engine 
temperature.  
 
3.  If the temperature does not drop or continues to increase, stop the engine immediately.  
 
*See your vehicle owner’s manual for additional indications that your vehicle may be overheating.