One problem related to exhaust system emission control urea injection system (def) has been reported for the 2020 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Chevrolet Silverado 1500 based on all problems reported for the 2020 Silverado 1500.
The contact owns a 2020 Chevrolet Silverado 1500. While operating in negative (-41°f) degree winter conditions, the "service emission system" entered an epa-mandated speed limitation in limp mode messages were displayed. Dealer diagnostics confirmed dtc: p20b9 (heater control circuit open) and p20c1. The failure was identified as the melting of the diesel exhaust fluid (def) tank electrical connector due to undersized terminal pins overheating (joule heating). The contact stated that it was a latent design defect that posed a fire risk and a safety hazard due to sudden loss of motive power in arctic climates (-45°f). General motors acknowledged the defect in 2500hd models, special coverage: n212342980; but excluded the 1500 models. The failure mileage was 29,354.
| Engine And Engine Cooling problems | |
| Check Engine Light On problems | |
| Engine Cooling System problems | |
| Car Stall problems | |
| Emission Control problems | |
| Exhaust System Emission Control Urea Injection System (def) problems | |
| Coolant Leaking problems |