These instructions apply to the Porsche 718 Boxster / Cayman 982 2016-Present.
For other models, please choose your vehicle here.
If the tyre-pressure warning has come on in your Porsche 718 Boxster or Cayman (2016–present) — the 982 — after you’ve adjusted the pressures or changed a wheel, you handle it through the central display (PCM). The 718 uses sensors in the wheels and runs staggered tyres (wider rears). A tyre-pressure alert on this car is normal behaviour rather than a fault: it means the live pressures no longer match what the system expects, usually because the tyres have cooled, you’ve corrected the pressures, or you’ve fitted a different set of wheels.
How the System Works on the 718
Each wheel carries its own sensor that reads the actual pressure and reports it to the car, so the display can show a real figure for every corner. Because the fronts and rears take different pressures — and because you can run road or track wheels, summer or winter — the car keeps a selected wheel/tyre profile as its reference. Getting the warning to clear is mostly about setting the right pressures and making sure the correct profile is chosen, then letting the sensors report as you drive.
Before You Begin
- Set the pressures with the tyres cold, before the car has been driven far.
- Use the door-jamb / fuel-flap placard figures and remember the front and rear pressures differ — set each axle to its own value.
- Switch the ignition on so the PCM / multifunction display is awake.
- Know which wheel/tyre profile you’re on (road/track, summer/winter) before opening the tyre-pressure page.
After Adjusting Pressures
For a simple top-up, no manual reset is needed — just drive the car and the system re-reads the corrected pressures.
After Changing Wheels or Tyres
- Set the tyres to the correct cold pressures (fronts and rears differ).
- On the PCM / multifunction display, open the tyre-pressure page.
- Select the correct wheel/tyre setting (e.g. road/track, summer/winter).
- Drive the vehicle to complete the procedure.
If the Warning Stays On
- Recheck every tyre against the correct front/rear figures — one below spec keeps the warning on.
- Pick the matching wheel/tyre profile after a seasonal or track-wheel swap.
- Drive a few minutes so the sensors report.
- Cold weather lowers pressure — a car set correctly in mild conditions can read low on a frosty morning; top up and let it re-read.
- A single corner that keeps dropping suggests a slow puncture or a leaking valve rather than a system fault.
- Still showing with correct pressures? A sensor may have a flat battery — look up the code on autodtcs.com.
After the Reset
With the pressures correct and the right profile selected, the warning should clear within a few minutes of driving as each sensor reports in. It then stays off for the rest of the trip. The system carries on monitoring, so if a tyre later falls below its target the alert returns — a prompt to check that corner, not a sign the reset didn’t take.
Frequently Asked Questions
How do I reset the tyre pressure warning on a Porsche 718?
After a top-up just drive; after a wheel/tyre change, select the correct wheel/tyre profile on the PCM tyre-pressure page and drive to confirm.
Do the front and rear pressures differ?
Yes — the 718 runs wider rear tyres, so set each axle to its own figure. Use the values on the door-jamb placard rather than a single number for all four, and always set them cold. Mixing the axles up is a common reason the warning refuses to clear.
Why won’t it clear?
Usually a tyre still below spec, or the wrong wheel/tyre profile selected after a wheel change.
Do I need a tool?
No for a normal reset; a tool is only needed if a sensor is replaced.
Do I need to reset after fitting track wheels?
Set the correct cold pressures for that set, then open the tyre-pressure page on the PCM and choose the matching wheel/tyre profile before driving. Selecting the right profile is what tells the car which reference pressures to watch, so it stops the warning nagging when you switch between road and track wheels.
The warning came on after a cold night — is that normal?
Yes. Pressure falls as temperature drops, so a tyre set correctly in warmer weather can read low overnight and trip the alert. Check and top up all four to the placard figures with the tyres cold, then drive; once the sensors report the correct pressures the light goes out.
If the warning came on with other lights, decode the code on autodtcs.com.
Independent guide — not affiliated with Porsche. Always follow your official service manual and safety precautions. Read our full disclaimer.