When do Def warnings start on a GMC 2500?
The Engine Control Module (ECM) monitors the DEF level and consumption rate in order to calculate an estimated range in miles remaining until the DEF reservoir is empty. DEF levels are detected by the 3-position solid-state DEF level sensor. Typically, DEF warnings begin once the estimated mileage falls below 1,609 km (1,000 mi).
When does warning level 1 start on a GMC?
Warning Level 1 is triggered when the DEF level falls below the top-most position of the DEF Level Sensor and the estimated range remaining is greater than 1609 km (1000 mi). No prompts or warnings are presented to the driver.
When does a GMC diesel warning light come on?
In the event of a refill, the scan tool may show that fluid has been added, but the vehicle may not release from the warning level unless it is driven for greater than 6 mph (10 km/h) for approximately 5 minutes. Warning Level 8 is triggered when the ECM detects that additional fuel was added without a refill of the DEF reservoir.
Why does my GMC 2500 diesel go to sleep?
If the vehicle has been driven for a four to five miles (6.5 to 8.0 km), the DEF Fluid Level Percentage is 100% on the Tech 2, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC still will not update, the message may have become latched into the ECM.
The Engine Control Module (ECM) monitors the DEF level and consumption rate in order to calculate an estimated range in miles remaining until the DEF reservoir is empty. DEF levels are detected by the 3-position solid-state DEF level sensor. Typically, DEF warnings begin once the estimated mileage falls below 1,609 km (1,000 mi).
In the event of a refill, the scan tool may show that fluid has been added, but the vehicle may not release from the warning level unless it is driven for greater than 6 mph (10 km/h) for approximately 5 minutes. Warning Level 8 is triggered when the ECM detects that additional fuel was added without a refill of the DEF reservoir.
Warning Level 1 is triggered when the DEF level falls below the top-most position of the DEF Level Sensor and the estimated range remaining is greater than 1609 km (1000 mi). No prompts or warnings are presented to the driver.
If the vehicle has been driven for a four to five miles (6.5 to 8.0 km), the DEF Fluid Level Percentage is 100% on the Tech 2, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC still will not update, the message may have become latched into the ECM.