These instructions apply to the RAM 1500 Mk3 (DR/DH) 2002-2008.
For other models, please choose your vehicle here.
Only the 2008 Dodge Ram 1500 has tire-pressure monitoring; 2002–2007 trucks have none. It is a direct system that relearns on its own, so there is no reset button.
- Set every tire — including the spare if it carries a sensor — to the pressure on the driver’s door-jamb placard (typically 35 psi front and rear).
- Drive above 15 mph for about 20 minutes so the system reads each wheel sensor.
- The low-pressure warning light goes out once all four pressures are correct. If it keeps blinking after the drive, a sensor may need registering by a dealer.
Recommended cold tire pressures
These are the typical cold pressures for the common factory sizes. Always confirm against your own truck’s door-jamb placard, and follow the placard for LT (light-truck) tires or when carrying heavy loads.
| Tire size | Front | Rear |
|---|---|---|
| P245/70R17 | 35 psi | 35 psi |
| P265/70R17 | 35 psi | 35 psi |
| P275/60R20 | 35 psi | 35 psi |
Frequently Asked Questions
Does the 2002–2007 Dodge Ram 1500 have TPMS?
No — tire-pressure monitoring arrived on the Ram 1500 for 2008. Earlier trucks have no sensors and no warning light.
How do I reset the 2008 Ram tire-pressure light?
There is no button. Set all tires to the placard pressure and drive above 15 mph for about 20 minutes; the direct system relearns automatically.
What tire pressure should a 2008 Ram 1500 run?
Typically 35 psi front and rear on the common P-metric sizes. The door-jamb placard is the authority for your exact fitment and for LT tires.
Servicing your Ram? Browse the Ram 1500 guides, and decode any fault code on autodtcs.com.
Independent guide — not affiliated with RAM. Always follow your official service manual and safety precautions. Read our full disclaimer.