This is from the 2015 Nissan Versa Owners Manual page 9-17:
FLAT TOWING
Towing your vehicle with all four wheels on the
ground is sometimes called flat towing. This
method is sometimes used when towing a vehicle
behind a recreational vehicle, such as a motor
home.
CAUTION
? Failure to follow these guidelines can
result in severe transmission damage.
? Whenever flat towing your vehicle, always
tow forward, never backward.
? DO NOT tow any continuously variable
transmission vehicle with all four
wheels on the ground (flat towing). Doing
so WILL DAMAGE internal transmission
parts due to lack of transmission
lubrication.
? For emergency towing procedures refer
to “Towing recommended by NISSAN”
in the “In case of emergency” section of
this manual.
[COLOR=]Manual Transmission (if so equipped)
? Always tow with the manual transmission in
Neutral.
? After towing 500 miles (805 km), start and
idle the engine with the transmission in Neutral
for two minutes. Failure to idle the engine
after every 500 miles (805 km) of towing
may cause damage to internal transmission
parts.
Automatic Transmission (if so
equipped)
To tow a vehicle equipped with an automatic
transmission, an appropriate vehicle dolly MUST
be placed under the towed vehicle’s drive
wheels. Always follow the dolly manufacturer’s
recommendations when using their product.
Continuously Variable Transmission (if
so equipped)
To tow a vehicle equipped with a continuously
variable transmission, an appropriate vehicle
dolly MUST be placed under the towed vehicle’s
drive wheels. Always follow the dolly manufacturer’s
recommendations when using their product.