Intermittent light operation reduces the ability to warn other motorists of the driver's intentions, increasing the risk of a crash.

Over time, increased resistance at the taillight electrical contact points may cause damage to the ground terminal and housing of the connector resulting in an intermittent or permanent loss of functionality of one or more rear lamp functions (tail, brake, turn-signal, reverse).

What to do: Book it in at your next service. There is no deadline and no charge.