Reset the Tyre Pressure Monitor (TPMS)

Reviewed by the Service Reset editor · Updated August 18, 2026 · How we verify
Quick referenceToolsNoneTime~5 minMethodMenu reset or drive to relearn

These instructions apply to the Jeep Gladiator Mk1 (JT) 2020-Present.
For other models, please choose your vehicle here.

If the tyre-pressure warning has come on in your Jeep Gladiator (2020–present) after you’ve adjusted the pressures or changed a wheel, this generation uses an indirect system — there are no sensors in the wheels, so you reset it by setting the pressures and driving. A lit TPMS lamp here just means the truck has spotted a difference from what it last learned; it’s a normal prompt to check the tyres, not a mechanical fault. Here’s how.

Jeep Gladiator Mk1 — the vehicle covered in this reset guide.
Jeep Gladiator Mk1. Photo by Kevauto via Wikimedia Commons, licensed CC BY-SA 4.0.

How the System Works

The indirect TPMS reads wheel-speed data to spot a tyre going soft, so after any pressure change you set the correct pressures and let the truck relearn them on the move. A soft tyre has a slightly smaller rolling radius and turns fractionally faster than the others, and the system watches for that difference. Because it works from wheel speed rather than an in-wheel gauge, there’s nothing to physically read a psi value — the reset is simply a short learn drive with everything set correctly first.

Jeep Gladiator Mk1 tyre-pressure (TPMS) warning light and reset reference.
What the TPMS light means on the Jeep Gladiator Mk1, and how to reset it after setting the correct pressures.

Before You Begin

  • Check the tyres cold — set them before driving, or at least a couple of hours after, so heat doesn’t mask a low corner.
  • Use the door-shut placard figure, and confirm the right pressure if you’ve fitted larger off-road tyres.
  • Set every corner accurately — an indirect system relearns from a matched set, so consistency across all four matters.
  • Plan a steady drive where you can hold roughly 25 km/h (15 mph) or more without constant stops.

Resetting the System

  1. Park level and set all four tyres to the correct cold pressures (placard in the driver’s door shut — check the figure if you’ve fitted larger off-road tyres).
  2. Drive the vehicle for about 20 minutes at a steady speed above roughly 25 km/h (15 mph).
  3. The new pressures are stored as the baseline and the warning clears.

If the Warning Stays On

  • Recheck every tyre — one below spec keeps the warning on. Don’t forget the spare if it’s monitored.
  • Complete the learn drive — short, stop-start trips may not give the system enough steady running to finish relearning.
  • After fitting bigger tyres, set them to the recommended pressure for that size before driving.
  • Watch a corner that keeps dropping — if one tyre falls again after you set it, suspect a slow puncture or a leaking valve.
  • Still showing with correct pressures? A fault may be stored — look it up on autodtcs.com.

After the Reset

Once all four are set correctly and the learn drive is complete, the warning clears and stays off for the trip. Because the system works from wheel speed, it needs that steady run to settle — so the light may linger for a few minutes after you set the pressures before it goes out. Expect it to reappear after a cold spell, when pressures naturally drop; a top-up and another short drive clears it again.

Frequently Asked Questions

How do I reset the tyre pressure light on a Jeep Gladiator?

Set all four pressures correctly cold to the door-shut placard figure, then drive about 20 minutes above roughly 25 km/h (15 mph). The system relearns the matched set as its new baseline and the warning clears once the learn drive is complete.

Does it have sensors in the wheels?

This generation uses an indirect, wheel-speed-based system, so there’s no in-wheel sensor and no sensor battery to fail. That also means there’s nothing to match with a tool after a tyre change — you just set the pressures and complete the learn drive.

Why won’t the warning clear after fitting off-road tyres?

Make sure all four (and the spare, if monitored) are at the correct pressure for the new size, then redo the learn drive. Bigger or heavier tyres can have a different recommended pressure, and the system won’t settle until every corner is consistent and you’ve driven long enough to relearn.

Dashboard tyre-pressure (TPMS) readout.
Dashboard tyre-pressure readout (illustrative). Adapted from a photo by WillisMoon via Wikimedia Commons, CC BY 4.0.

Do I need a tool?

No — setting the pressures and driving is all that’s needed. Because the Gladiator’s indirect system reads wheel speed rather than in-wheel sensors, there’s nothing to program with a garage tool; the reset is purely a correctly-inflated learn drive.

Why did the light come on in cold weather?

Air contracts as it cools, so a cold morning can drop a tyre below spec and trip the warning even with no leak. Top every tyre back up to the placard figure, then complete a short steady drive so the system relearns; the lamp then clears.

If the warning came on with other lights, decode the code on autodtcs.com.

Independent guide — not affiliated with Jeep. Always follow your official service manual and safety precautions. Read our full disclaimer.

Tyre tools: Changed tyre size or just adjusting pressures? Use our free non-stock tyre pressure calculator, bar/PSI/kPa converter and tyre size comparison tool.
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