29400 Special Coverage. Certain vehicles that are equipped with a diesel engine (RPO LML/LGH/LUZ), a malfunction-indicator light (MIL) may illuminate due to an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir or increased DEF tank-heater resistance. Dealers are to replace the DEF tank reservoir. The repairs will be made at no charge to the customer.
