P2829 code meaning
Pressure Control Solenoid K Performance/Stuck Off
Powertrain system Generic code P28xx codes Check engine light
What P2829 means
P2829 means valve K remains hydraulically inactive although it is commanded on. In GM's 2023 Corvette dual-clutch transmission K is the selector pilot valve, which steers the selector spool of the shift-rod hydraulics. The check runs inside a synchronizer integrity routine that starts after a gear or component fault: the TCM orders small rod movements and measures them. If the rods respond as though the selector were off (no more than 100 µm of intended travel, over 100 µm on the complementary rod) and the valve's current profile check fails three times, with cooler-out oil at 40 °C or warmer, the Type A code is stored. Ford handles the same selector pilot valve of its TR9070 under P27D9 rather than a K code. Gear selection on one shaft may be lost.
P2829 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor2 to 12 hours
- Clears after repairAfter a drive cycle
Symptoms of P2829
- Some gears unavailable
- Hesitation or failed gear preselection
- MIL on
Common causes of P2829
- Most likelySelector pilot valve stuck in the off position
- PossibleAbrasion particles in the transmission fluid
- Less likelySelector spool itself stuck (same symptom, different part)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Pressure control solenoid kValve body
What each part of P2829 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| 29 | The exact fault in that area. |
What to do next
- Note P2829 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2829
What does P2829 mean?
P2829 means "Pressure Control Solenoid K Performance/Stuck Off". P2829 means valve K remains hydraulically inactive although it is commanded on. It is a generic code, so it means the same on every make.
Is it safe to drive with P2829?
Drive gently and only to a workshop. With P2829 the car can go into limp mode (reduced power) to protect itself.
Will P2829 fail an emissions test?
Yes, it can. P2829 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2829 to fix?
Difficulty: workshop only. A typical repair takes 2 to 12 hours of work. This is a job for a workshop.
Will P2829 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.