A wrench that flashes when you turn the car on indicates that the car has reached it's service interval.
Generally a dealership will reset the "wrench" to come on every 5000 miles, although many models which require an oil change less frequently, are set to come on every 10,000 miles. Reading the owner's manual will answer this, and many other questions you might have
The EPA range estimate for the 2011 Volkswagen Jetta is 348.0 mi. in the city, 493.0 mi. on the highway.
The EPA range estimate for the 2008 Volkswagen Jetta is 304.5 mi. in the city, 420.5 mi. on the highway.
The EPA range estimate for the 2010 Volkswagen Jetta is 319.0 mi. in the city, 435.0 mi. on the highway.
The EPA range estimate for the 2006 Volkswagen Jetta is 275.5 mi. in the city, 406.0 mi. on the highway.
The EPA range estimate for the 2012 Volkswagen Jetta is 348.0 mi. in the city, 493.0 mi. on the highway.
The EPA range estimate for the 2004 Volkswagen Jetta is 304.5 mi. in the city, 406.0 mi. on the highway.
The EPA range estimate for the 2005 Volkswagen Jetta is 304.5 mi. in the city, 406.0 mi. on the highway.
The EPA range estimate for the 2013 Volkswagen Jetta is 348.0 mi. in the city, 493.0 mi. on the highway.
The EPA range estimate for the 2009 Volkswagen Jetta is 304.5 mi. in the city, 435.0 mi. on the highway.
The EPA range estimate for the 2001 Volkswagen Jetta is 304.5 mi. in the city, 406.0 mi. on the highway.
The EPA range estimate for the 2002 Volkswagen Jetta is 304.5 mi. in the city, 406.0 mi. on the highway.
The EPA range estimate for the 2003 Volkswagen Jetta is 304.5 mi. in the city, 420.5 mi. on the highway.