Toyota Auris 2013 Owner's Manual page 611

NOTICE
 When the DPF system warning light comes on (diesel engine)
If the DPF system warning light is left on without performing cleaning, after
an additional 100 to 300 km (62 to 187 miles), the malfunction indicator
lamp may come on. If this happens, have the vehicle inspected by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional immediately.
 If the fuel filter warning light comes on (diesel engine)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.
UK_AURIS/AURIS_HV_EE (OM12F76E)
7-2. Steps to take in an emergency
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