OBD-II code · Powertrain (generic)
P088A Transmission Fluid Filter Deteriorated
The TCM detects a deteriorated transmission fluid filter based on differential pressure or flow restriction. Filter change recommended.
Is it safe to drive with P088A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyFilter loaded with debris
- PossibleService interval overdue
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Transmission Fluid Filter
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.