One problem related to check engine light on has been reported for the 2016 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Volkswagen Jetta based on all problems reported for the 2016 Jetta.
I just purchased a 2016 vw Jetta s 1. 4 gasoline turbo engine on 3/5/16. It has under 400 miles on it with light driving. The check engine light came on within a week of purchase and was taken to vw dealer service immediately. I was told issue was "defective brake vacuum and relay". There is currently an NHTSA open recall (23r1) that applies to the 1. 8 and 2. 0 turbo gasoline engine, but it should clearly include the 1. 4 turbo gas engine. This is a major, safety critical issue to sell a car with. Brake failure could likely lead to fatalities driving in either highway or city conditions the Jetta 1. 4 turbo gas engine model should be included with recall 23r1, NHTSA campaign number: 15v705000 I feel fortunate that I was not driving the car to experience brake failure, collision or death. This is completely unacceptable in a new car and has caused me to lose faith in the safety of the vehicle.