P2788

Auto Shift Manual Adaptive Learning at Limit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–278 (est.)

Symptoms

Hard or delayed manual shifts
Shifting to neutral when trying to manually shift
Check Engine Light Illuminates
Reduced vehicle dynamics
Activation of emergency operation mode of automatic transmission

Causes

Wear of automatic transmission friction elements
Low level or deterioration of transmission fluid
Problems with shift solenoids
Malfunctions of automatic transmission shaft speed sensors
Software errors in the transmission ECU

How to Fix

Check the level and condition of the transmission fluid
Diagnose the condition of automatic transmission solenoids and sensors
Perform hardware diagnostics of the transmission ECU
Carry out the automatic transmission adaptive learning procedure using a scanner
If necessary, replace worn transmission components

Related codes

P2787 P2789 P2790