Hyundai IONIQ 5 Owner's Manual page 397

Turn signals
When you tow a trailer, your vehicle has
to have a different turn signal flasher and
extra wiring. The green arrows on your
instrument panel will flash whenever you
signal a turn or lane change. Properly
connected, the trailer lights will also flash
to alert other drivers you're about to turn,
change lanes, or stop.
When towing a trailer, the green arrows
on your instrument panel will flash for
turns even if the bulbs on the trailer are
burned out. Thus, you may think drivers
behind you are seeing your signals when,
in fact, they are not. It's important to
check occasionally to be sure the trailer
bulbs are still working. You must also
check the lights every time you
disconnect and then reconnect the wires.
WARNING
Do not connect a trailer lighting system
directly to your vehicle's lighting system.
Use an approved trailer wiring harness.
Failure to do so could result in damage to
the vehicle electrical system and/or
personal injury. Consult an authorized
HYUNDAI dealer for assistance.
Driving on hills
Reduce speed before you start down a
long or steep downgrade.
On a long uphill grade, reduce your speed
to around 45 mph (70 km/h) to reduce the
possibility of motor overheating.
NOTICE
To prevent motor overheating:
When towing a trailer, your vehicle speed
may be much slower than the general
flow of traffic, especially when climbing
an uphill grade. Use the right hand lane
when towing a trailer on an uphill grade.
Choose your vehicle speed according to
the maximum posted speed limit for
vehicles with trailers, the steepness of the
grade, and your trailer weight.
Parking on hills
Generally, if you have a trailer attached to
your vehicle, you should not park your
vehicle on a hill.
However, if you ever have to park your
trailer on a hill, here's how to do it:
1. Pull the vehicle into the parking space.
Turn the steering wheel in the direction
of the curb (right if headed down hill,
left if headed up hill).
2. Shift the gear to P (Park).
3. Set the parking brake and shut off the
vehicle.
4. Place wheel chocks under the trailer
wheels on the down hill side of the
wheels.
5. Start the vehicle, hold the brakes, shift
to neutral, release the parking brake
and slowly release the brakes until the
trailer chocks absorb the load.
6. Reapply the brakes and parking brakes.
7. Shift the gear to P (Park) when the
vehicle is parked on a uphill grade and
in R (Reverse) on a downhill.
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