Dodge 2010 Challenger - Owner Manual - Manual (Page 421)

12. Reinstall the tail lamp assembly, fasteners, electrical
connector, and trunk liner.
13. Reinstall tail lamp retainer.
14. Close the trunk.
Center Tail/Backup Lamp
See your authorized dealer for bulb replacement.
Center High-Mounted Stop Lamp (CHMSL)
The CHMSL uses LED lamps that are not serviceable
separately. The CHMSL must be replaced as an assembly,
see your authorized dealer.
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MAINTAINING YOUR VEHICLE 419