Toyota Yaris Owner's Manual page 399

Emergency towing
If a tow truck is not available in an emergency, your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet. This should only be attempted on hard surfaced roads
for 80 km (50 miles) at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle's wheels, drive train, axles, steering and brakes must be in
good condition.
Emergency towing procedure
1
Take out the towing eyelet. (P. 419)
2
Remove the eyelet cover by
turning.
3
Insert the towing eyelet into the
hole and tighten partially by
hand.
8-2. Steps to take in an emergency
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