Re: 2013 Grand Cherokee Trailhawk
Welcome to JeepGarage!! Check out the WK2 section of the forums and look in the subsections for answers to your question. It shouldn't be any different of a bulb than normal.
2017 Grand Cherokee Limited Lux II Granite Metallic
2014 Jeep Grand Cherokee Limited Max Steel V6
2001 Jeep Grand Cherokee Laredo Black 4.0 I6
1997 Jeep Grand Cherokee Laredo Silver I6