Defect
On certain vehicles, the rear turn signal bulbs could short circuit. If this happens, the turn signals and hazard lights may dim or may not work properly. Note: This problem can cause the turn signal indicator on the instrument panel to flash quickly.
Safety Risk
Turn signals that do not work properly could cause a following driver not to recognize that a vehicle ahead intends to turn. Hazard lights that do not work properly could make the vehicle less visible. This could increase the risk of a crash.
Remedy
Toyota will notify owners by mail and instruct you to bring your vehicle to a dealer to replace both rear turn signal bulbs. The dealer will also replace the rear turn signal lamp assemblies, if necessary.