Fiat 500 X 2016 Owner's Manual page 379

Exterior Bulbs
Lamps
Low Beam/High Beam Headlamps
Front Position/Daytime Running Lights (DRL)
Front Direction Indicator Lamps
Front Fog Lamps
Side Indicators (Side View Mirror)
Tail/Brake Lights/Turn Indicators
Center High Mounted Stop Lamp (CHMSL)
Reverse
License Plate Lamp
IN CASE OF EMERGENCY 377
Bulb Number
HIR2
P21/5
PY21W
H8
WY5W
P21W
LED (Serviced at an Authorized Dealer)
P21W
W5W
8