Pontiac G8 Tire Pressure

Pontiac G8 models from 2008 to 2009 have recommended tire pressure of 36 psi to 39 psi based on model year, trim and original equipment tire size.

Pontiac G8 is a passenger car offered in 3 trims and equipped with 3 original equipment tire size sets. You can find recommended tire pressure for Pontiac G8 by model year, model trim or its original equipment tire size. Keep Pontiac G8 tires properly inflated at all times to enjoy a safe and comfortable drive.

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Select Pontiac G8 year to see its original equipment tire sizes and corresponding tire inflation pressures.

2009 Pontiac G8 Tire Pressure

Recommended tire pressure for 2009 Pontiac G8 is 36 psi for front tires and 39 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
245/40R19 94W 36 psi 39 psi
245/45R18 96V 36 psi 39 psi
P245/45R18 96V 36 psi 39 psi

2008 Pontiac G8 Tire Pressure

Recommended tire pressure for 2008 Pontiac G8 is 36 psi for front tires and 39 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
245/40R19 94W 36 psi 39 psi
245/45R18 96V 36 psi 39 psi
P245/45R18 96V 36 psi 39 psi

Select Pontiac G8 trim to see its original equipment tire sizes and corresponding tire inflation pressures.

Tire Pressure for Pontiac G8 Base Model

Recommended tire inflation for Pontiac G8 Base Model is 36 psi for front tires and 39 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
245/45R18 96V 36 psi 39 psi
P245/45R18 96V 36 psi 39 psi

Tire Pressure for Pontiac G8 GT

Recommended tire inflation for Pontiac G8 GT is 36 psi for front tires and 39 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
245/40R19 94W 36 psi 39 psi
245/45R18 96V 36 psi 39 psi
P245/45R18 96V 36 psi 39 psi

Tire Pressure for Pontiac G8 GXP

Recommended tire inflation for Pontiac G8 GXP is 36 psi for front tires and 39 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
245/40R19 94W 36 psi 39 psi

Recommended tire inflation for Pontiac G8 original equipment tire sizes with matching trims and model years.

Tire Size Front Tire Pressure Rear Tire Pressure
245/40R19 94W 36 psi 39 psi
Years: 2008 - 2009
Trims: GT GXP
245/45R18 96V 36 psi 39 psi
Years: 2008 - 2009
Trims: Base Model GT
P245/45R18 96V 36 psi 39 psi
Years: 2008 - 2009
Trims: Base Model GT

What is the correct tire pressure for Pontiac G8?

Recommended tire pressure for Pontiac G8 tires is 36 psi to 39 psi, set by Pontiac manufacturer and based on model's original equipment tire size to optimize vehicle performance, fuel efficiency and safety.

Where do I find the recommended tire pressure for Pontiac G8?

Pontiac G8 recommended tire pressure can be found in owner's manual, on a tire placard on the side of driver's door or door jam, on the trunk lid, in the console or on the fuel door. Tire inflation will be listed in psi (pounds per square inch), bar or kPa (kilopascals).

How to check Pontiac G8 tire pressure?

To check Pontiac G8 tire pressure you will first need to determine its recommended tire pressure for the front and rear tires. Take off tire valve caps and use a tire pressure gauge to check tire inflation in every tire. Adjust Pontiac G8 tire pressure to its recommended levels. If overinflated, let some air out by pressing down the center plunger in the valve stem. If underinflated, add air with tire inflator. Recheck tire pressure to make sure all tires are properly inflated. Replace the valve stem caps. Make sure to check tire pressure when tires are "cold" and have not been driven for at least 3 hours. Remember that the front and rear tire pressures may differ.

What is proper tire pressure for Pontiac G8 replacement tires?

If you replace Pontiac G8 original equipment tires with non-stock tires that have different size or load capacity, new tires may require substantially different inflation pressures. Use our Replacement Tire Pressure Calculator to find proper tire inflation when switching to a different tire size.

What is optimal winter tire pressure for Pontiac G8?

Tire pressure fluctuates with ambient temperatures. When temperatures drop, Pontiac G8 tires may lose approximately 1 psi of air pressure for every 10 degree Fahrenheit decrease. During winter Pontiac G8 tires can be inflated 3 to 5 psi above the recommended tire pressure settings to compensate for lower temperatures. Do not overinflate above the maximum tire inflation pressure value indicated on tire sidewall. Make sure to check tire pressure regularly in the winter to keep tires properly inflated for a safe ride on snow and icy roads.

Is my Pontiac G8 equipped with Tire Pressure Monitoring System (TPMS)?

If your Pontiac G8 is built after 2007, it is most likely equipped with a Tire Pressure Monitoring System. Check owner's manual to see if your model has TPMS.

Why is my Pontiac G8 TPMS warning light on?

If Pontiac G8 TPMS warning light comes on and stays on, it means at least one of the tires is underinflated. If TPMS warning light goes on and off, fluctuating ambient temperatures may be the reason. If Pontiac G8 TPMS warning light flashes for 90 seconds when you start the vehicle and then remains illuminated, the TPMS is not functioning properly and you should have it serviced.

How to reset Pontiac G8 Tire Pressure Monitoring System?

To reset TPMS on Pontiac G8, follow the instructions in owner's manual. If TPMS will not reset, there may be a problem with tire pressure sensors.

All listed data and/or calculations are for informational purposes only. TirePressure.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall.