Jeep Wrangler Tire Pressure (Recommended PSI)
TL;DR
Most JL-generation Wranglers call for 37 PSI front and rear on factory LT tires; JK and TJ generations vary by trim and tire size, so check your door placard for the exact number.
Where to find the real number for your Jeep
Every Wrangler has a tire and loading information placard on the driver's door edge or door jamb, listing the factory cold-inflation pressure for the specific tire size that left the factory on that vehicle. This is the only figure that is correct for your exact truck - not the number molded into the tire sidewall, which is only the tire's maximum pressure rating. The owner's manual repeats the same figure and adds notes for towing or full-load conditions.
Why Wrangler pressures differ so much between trims
Unlike many passenger cars, Wrangler trims often ride on different tire sizes and load ranges (Sport and Sahara commonly use 255/75R17, Rubicon uses 285/70R17, and off-road packages like Xtreme Recon use 35-inch tires on unique wheels). Because these are Light Truck (LT) rated tires, Jeep frequently specifies the same relatively high pressure, commonly 37 PSI, across several trims - but this is not universal across every generation, tire size, or model year, and some placards show 33-36 PSI instead. Always match the number to your own placard rather than assuming one figure fits every Wrangler.
What we could verify
Multiple independent sources (owner forums quoting their own placards, and tire-pressure reference sites) agree that current JL Wranglers with factory 255/75R17 or 285/70R17 tires are commonly placarded at 37 PSI front and rear. For the JK generation, sources report a wider spread, roughly 32 to 37 PSI, depending on model year, trim, and tire size, so we present that as a range rather than a single number. For the TJ generation, available sources were not consistent enough to state a reliable figure, so check your own placard or owner's manual.
Practical tips
- Check pressure when tires are cold, before driving more than a mile or sitting in direct sun
- Re-check after switching to a different tire size than the factory-fitted one - the placard number no longer applies
- Use the placard figure as the baseline, then adjust slightly for heavy loads or towing per the owner's manual
| Generation / years | Trim or tire size | Front (PSI) | Rear (PSI) |
|---|---|---|---|
| JL (2018-present) | Sport/Sahara, 255/75R17 | 37 | 37 |
| JL (2018-present) | Rubicon, 285/70R17 | 37 | 37 |
| JL (2018-present) | Xtreme Recon package (35-inch tires) | Check placard | Check placard |
| JK (2007-2018) | Varies by trim/tire size | 32-37 (range, sources vary) | 32-37 (range, sources vary) |
| TJ (1997-2006) | Varies by trim/tire size | Check placard | Check placard |
Summary
| Vehicle type | SUV (body-on-frame) |
|---|---|
| Where to check | Driver's door jamb placard and owner's manual |
| JL common figure (255/75R17, 285/70R17) | 37 PSI front/rear |
| JK typical range | 32-37 PSI (varies by trim/tire size) |
| TJ figure | Not reliably verifiable - check placard |
| Check pressure | When tires are cold |
| Never use | The max PSI molded on the tire sidewall as a driving pressure |
Full diagnostics
For the complete step-by-step diagnostic and repair guide, see Jeep Wrangler: Common Problems, Fault Codes & Repairs.
Frequently asked questions
Is 37 PSI correct for every Jeep Wrangler?
No. 37 PSI is the commonly reported placard figure for current-generation JL Wranglers on their standard 255/75R17 or Rubicon 285/70R17 factory tires, because those are LT-rated tires. It is not a universal number for every Wrangler generation, trim, or aftermarket tire size - always check the placard on your own door jamb.
Why does the tire sidewall show a different, higher pressure than the placard?
The number molded into the tire sidewall is the tire manufacturer's maximum cold-inflation pressure for that tire's maximum load capacity, not the recommended driving pressure. The vehicle manufacturer's placard figure accounts for the actual Wrangler's weight and handling and should always be used instead.
Should I lower tire pressure for off-roading?
Many Wrangler owners reduce pressure for off-road traction, but this is a driving technique, not a replacement for the placard figure, and pressures should be returned to the placard setting for normal road driving. If you plan to air down, follow guidance specific to your tire size and load, and always re-inflate before highway speeds.
My Wrangler has aftermarket 35-inch or 37-inch tires - what pressure should I use?
The factory placard only applies to the original tire size and load rating. With different tires, the correct starting pressure depends on that tire's load rating and the actual weight on each axle - consult the tire manufacturer's load-inflation table or a shop scale rather than reusing the factory placard number.