Question: DEF warning came back shortly after refill
2021 Chevrolet Silverado 1500 LTZ 6.2, about 118,000 miles. Filled the DEF tank but warning returned sooner than expected. Before blaming the sensor, can old/contaminated fluid or crystallization cre…
PistonTech95Community StarterMar 13, 20262021 Chevrolet Silverado 1500 LTZ 6.2New York1 reply0 helpful