Clean speed sensor on wheel

I have a 2011 Jeep Liberty Sport and the ABS and traction control lights come on in wet weather, and seem to go off once the weather is dried up.  The mechanics first instinct was to replace the sensor which involved buying a hub—$350 for labor and parts.  After reading some other posts I’m wondering if I need to clean the sensor and then apply dielectric grease to it and see if that solves the problem.   I also am wondering if I can clean and apply the grease without taking the wheel off—I don’t have the tools or expertise for that.   

Ask a Question if you need help with your car.

Can you answer these questions?

HYUNDAI elantra EC
By inspjacktan 14 hours 57 minutes ago
Vehicle: Hyundai » Elantra » 2007-2010
3 series airbag light problems
By SETHB093 20 hours 49 minutes ago
Vehicle: BMW » 3-Series » 2004-2013
car start
By Tiger72 1 day 7 hours ago
Vehicle: Mercedes » E-Class » 1996-2003
Car accident report
By tiffanie89 1 day 8 hours ago
Vehicle: Hyundai » Sonata » 2006-2010
knocking sound when braking
By James Beyer 1 day 22 hours ago
Vehicle: Mercedes » E-Class » 2003-2009