P0826

Up and Down Shift Switch Circuit

Q: Is it safe to drive with P0826?

Yes. The transmission still shifts automatically; you just lose the manual up/down function until the switch is repaired.

Q: Can I just clear P0826?

It returns until the switch or its wiring is fixed. It's a low-severity fault, but the manual shift feature stays disabled until repaired.

Transmission — manual shift input Generic OBD-II Low

What it means

P0826 refers to a circuit fault in the driver-operated up/down shift switch — the tap-shift lever or paddles that let you change gears manually on an automatic. When it fails, the manual mode may stop responding and the transmission reverts to shifting automatically. It's a minor, convenience-level fault: the car still drives and the engine still starts normally.

Low

Can I keep driving? Fine to drive — you may lose the manual up/down (tap-shift) function, but the transmission still shifts automatically and the engine starts normally.

Real-world scan data

Seen in

191

scans in the past year

Found in

<0.1%

of scans

0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Manual up/down (tap-shift or paddle) mode not working
No response to up or down shift inputs
Transmission stays in fully automatic mode
Check-engine light on

Common causes

Most likely first

Faulty up/down shift switchLikely
Damaged wiring or corroded connector in the switch circuitCommon
Loose or corroded electrical connectionsCommon
Failed transmission control module (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and watch the up/down switch state in live data while operating it.
Inspect the switch wiring and connector for damage or corrosion.
Test the switch for correct open/closed operation as it is pressed.
Repair wiring faults or replace the switch if it doesn't signal correctly.
Clear the code and confirm manual shift mode responds again.

FAQ

Quick answers

Is it safe to drive with P0826?+

Yes. The transmission still shifts automatically; you just lose the manual up/down function until the switch is repaired.

Can I just clear P0826?+

It returns until the switch or its wiring is fixed. It's a low-severity fault, but the manual shift feature stays disabled until repaired.

Read & clear P0826 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX