Fuel Gauge Operation
September 18, 2014
There may be some questions from owners about fuel gauge operation on 2013-2015 Acadia, Enclave and Traverse models. (Fig. 12)
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The fuel gauge will read full when there is 19.8–21.8 gallons (75–82.5 L) in the fuel tank. When the fuel tank is more than 15 percent full, the ECM uses the signal circuit of the fuel level sender to calculate the remaining fuel level percent in the fuel tank.
Once the fuel level drops below 15 percent, the ECM switches to a Low Volume Fuel Consumption mode and stops using the fuel sender reading. The remaining fuel level is calculated based on fuel injector pulses. This is done to reduce gauge fluctuation due to sloshing fuel.
When refueling the vehicle, enough fuel must be added to bring the fuel level to 18 percent or more in order for the system to exit Low Volume Fuel Consumption mode. If only a small amount of fuel is added and the fuel level does not reach 18 percent, the fuel gauge needle will not move.
TIP: The fuel level must be more than 8 percent in order for the Remote Start system to operate.
On 2013-2014 models, the low fuel warning message displays when there is approximately 1.7 gallons (6.4 L) left in the fuel tank. The range accuracy for miles remaining depends on driving conditions. For example, steady driving with the fuel level below a quarter tank tends to average higher remaining miles than stop-and-go driving. The miles to empty fuel range reading should not be relied upon as an absolute indication.
To help address this situation on 2015 models, the low fuel warning message will display when there is approximately 2.5 gallons (9.5 L) left in the fuel tank.
During fuel system diagnosis, the fuel system can be forced into fast filtering mode by driving the vehicle at more than 2 mph (3.2 km/h), and then placing the shift lever into Park or Neutral for more than 45 seconds. After 45 seconds, the system will command the fuel gauge to display the current fuel level.
September 18, 2014
There may be some questions from owners about fuel gauge operation on 2013-2015 Acadia, Enclave and Traverse models. (Fig. 12)
The fuel gauge will read full when there is 19.8–21.8 gallons (75–82.5 L) in the fuel tank. When the fuel tank is more than 15 percent full, the ECM uses the signal circuit of the fuel level sender to calculate the remaining fuel level percent in the fuel tank.
Once the fuel level drops below 15 percent, the ECM switches to a Low Volume Fuel Consumption mode and stops using the fuel sender reading. The remaining fuel level is calculated based on fuel injector pulses. This is done to reduce gauge fluctuation due to sloshing fuel.
When refueling the vehicle, enough fuel must be added to bring the fuel level to 18 percent or more in order for the system to exit Low Volume Fuel Consumption mode. If only a small amount of fuel is added and the fuel level does not reach 18 percent, the fuel gauge needle will not move.
TIP: The fuel level must be more than 8 percent in order for the Remote Start system to operate.
On 2013-2014 models, the low fuel warning message displays when there is approximately 1.7 gallons (6.4 L) left in the fuel tank. The range accuracy for miles remaining depends on driving conditions. For example, steady driving with the fuel level below a quarter tank tends to average higher remaining miles than stop-and-go driving. The miles to empty fuel range reading should not be relied upon as an absolute indication.
To help address this situation on 2015 models, the low fuel warning message will display when there is approximately 2.5 gallons (9.5 L) left in the fuel tank.
During fuel system diagnosis, the fuel system can be forced into fast filtering mode by driving the vehicle at more than 2 mph (3.2 km/h), and then placing the shift lever into Park or Neutral for more than 45 seconds. After 45 seconds, the system will command the fuel gauge to display the current fuel level.
