OBD-II code · Powertrain (generic, extended)
P270B Transmission Friction Element B Temperature Too High
Friction element B inside the automatic transmission has reached over-temperature.
Is it safe to drive with P270B?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyExcessive slip due to worn clutch or low pressure
- PossibleRestricted transmission fluid cooler
- PossibleSustained heavy load such as trailer towing
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 3–10 h
- Emissions test
- Usually unaffected
- Parts involved
- Friction Element B, Transmission Fluid, Cooler
Related codes
- P270ATransmission Friction Element A Temperature Too High
- P270CTransmission Friction Element C Temperature Too High
- P270DTransmission Friction Element D Temperature Too High
- P270ETransmission Friction Element E Temperature Too High
- P270FTransmission Friction Element F Temperature Too High
- P2708Shift Solenoid F Stuck On
- P2709Shift Solenoid F Electrical
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.