It may.
If hybrid what voltage is on the 12v battery? Measure it from inside the engine bay fuse box (pos 12v tag under the red cover)
Should be about ~12.4v before you turn on ignition. (If Hybrid Ignition on will charge 12v battery from the hybrid battery and raise it to about 14.2)
In hybrid 12v battery only runs lights, tailgate accessories etc.
If petrol only, battery may be about 12.2v. See what it drops to when tailgate operated BEFORE starting engine.
Does it work ok if engine started, if so battery may be faulty.
Baz