TSB: Escalade Kinked Hose

This bulletin applies to 2021 Cadillac Escalade vehicles equipped with an LM2 engine. The MIL may be on and DTC P026A may be set in the ECM. This may be due to a kinked hose at or near the low temperature auxiliary coolant pump. If this condition is encountered, loosen the hose clamp and rotate the hose to allow for proper coolant flow.