What size tires fit a 2014 GMC Sierra?

The 2014 GMC Sierra uses P255/70R17 110S as the OEM tire size.

What tire pressure should a 2014 GMC Sierra have?

The recommended tire pressure for the 2014 GMC Sierra is 35 PSI front and 35 PSI rear (cold).

Can I use a different tire size on my 2014 GMC Sierra?

It is recommended to use the OEM size P255/70R17 110S. Alternative sizes may affect speedometer accuracy, handling, and clearances.

Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2014 GMC SierraTire Size & Pressure

OEM spec from the factory service manual for the Base, 2D Pickup, 4.3L Eng VIN H, 4WD variant.

Quick Answer

OEM Tire Size

P255/70R17 110S

Pressure (Front / Rear)

35 / 35 PSI

Load Index

Source: Factory service manual — 2014 GMC Sierra Base, 2D Pickup, 4.3L Eng VIN H, 4WD. View full manual section →

Other specs:All specs Oil Type Coolant

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P255/70R17 110S for GMC Sierra

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Frequently Asked Questions

What size tires fit a 2014 GMC Sierra?: The 2014 GMC Sierra uses P255/70R17 110S as the OEM tire size.
What tire pressure should a 2014 GMC Sierra have?: The recommended tire pressure for the 2014 GMC Sierra is 35 PSI front and 35 PSI rear (cold).
Can I use a different tire size on my 2014 GMC Sierra?: It is recommended to use the OEM size P255/70R17 110S. Alternative sizes may affect speedometer accuracy, handling, and clearances.