Warning Level 6

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Warning Level 6 is triggered when the estimated range remaining is less than approximately 0 km (0 mi) based on current DEF consumption rates. The driver will hear 4 chimes on entering Warning Level 6. The DIC displays the following messages:

For Non-Emergency vehicles and Emergency vehicles MY 2013 and older:

Exhaust Fluid Empty Refill Now
644 km (400 miles) until 105 km/h (65 mph) Max Speed

For Emergency vehicles MY 2014 and newer:

Exhaust Fluid Empty Refill Now
999 km (620 miles) until 105 km/h (65 mph) Max Speed

The messages are also displayed at the beginning of each ignition cycle. The Exhaust Fluid Empty Refill Now message remains on the DIC until acknowledged by the driver. The Max Speed mileage countdown until speed limitation will remain displayed in the DIC.

The DEF Indicator in the instrument panel is continuously illuminated. The vehicle remains in Warning Level 6 until the DEF reservoir is refilled or the first mileage countdown expires.

After the first mileage countdown expires, the system will advance from Warning Level 6 to Warning Level 7.