Diesel Exhaust Fluid Tank
The Diesel Exhaust Fluid (DEF) tank is blow molded from High Density Polyethylene (HDPE). The DEF tank is located under the left rear wheel arch panel. The DEF tank is secured to the wheel arch panel by a bracket and 4 fixing bolts. The DEF tank is shield protected by the rear left wheel arch liner. The DEF tank unit contains the DEF supply module that is welded into the tank, and supplied as a unit. The DEF tank includes a 12% unusable volume to protect the internal components because of fluid expansion under freezing conditions.
If the ambient temperature falls below -11°C (12°F), the DEF will freeze in the DEF tank and this will provide difficulty with the refill procedure. In order to thaw the DEF in the DEF tank, place the vehicle in a warm place for 2 hours before refilling the DEF.
When the vehicle consumes more DEF than anticipated the Instrument Cluster (IC) message center displays a warning message to add DEF to the tank. For example extended vehicle use in extreme temperatures, 'at high altitude' or aggressive drive cycles.