Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P1825 and P1915 are Type A DTCs.
The TCM commands maximum line pressure.
The TCM turns OFF all solenoids.
The TCM freezes transmission adaptive functions.
The TCM defaults the transmission to third gear if the current gear is 1st, 2nd, or 3rd; or fifth gear if the current gear is 4th, 5th, or 6th gear.