Automatic Transmission Fluid Pump Pressure High or Low

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
Automatic Transmission Fluid Pump Motor	Faulty fluid pump motor assembly Faulty fluid pump motor wiring Low fluid level Inspect for leaking or damaged fluid pump outlet seal and fluid filter seal Inspect for improperly installed or damaged fluid filter
Control Solenoid Valve	Inspect for leaking or damaged control solenoid valve seals Inoperable control solenoid valve Inspect for damaged control solenoid electrical connector or wiring Inspect for damaged or worn control solenoid valve accumulator or accumulator bore
Control Valve Assembly	Inspect for leaking or damaged control valve body spacer plate Inspect for damaged or stuck open line pressure blow-off ball valve Inspect for a sticky or stuck line pressure regulator valve Inspect solenoid module assembly for damage to plastic body or seal plate Inspect for other sticky or stuck valves within the control valve assembly Inspect for other leak paths within the line pressure hydraulic circuit or control valve solenoid hydraulic circuitry