What is the normal tire pressure for the Buick Excelle?

2 Answers
Brantley
07/29/25 5:55am
The normal tire pressure range for the Excelle is 2.4-2.5 bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2 bar in winter and decreased by 0.1 bar in summer. This data is based on the international GBT2978-2008 standard requirements. The Excelle's tire pressure monitoring system is indirect, utilizing the vehicle's ABS balance control, and only displays low pressure when there is a leak. To check the tire pressure, first prepare a tire pressure gauge, locate the original tire pressure label, press the gauge onto the tire valve to measure and read the pressure, and remember to replace the valve cap after measurement. Generally, a tire pressure above 2.8 bar is considered too high, while a pressure below 2.0 bar is too low. Hazards of overinflated tires: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; overstretches the tire cords, reducing elasticity and increasing the load on the vehicle during driving. Hazards of underinflated tires: Increased friction coefficient with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement of tire components, causing abnormal heat due to excessive rolling; reduces the functionality of cords and rubber, leading to delamination or cord breakage and excessive friction with the rim, damaging the tire bead and causing abnormal wear; multiplies friction with the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing strength. High-speed driving may lead to tire blowouts. If the tire pressure monitoring indicator light illuminates (a yellow symbol with an irregular circle, no stamp above, four small spikes below, and an exclamation mark inside), there are generally three possible reasons: Abnormal tire pressure: Typically, it will alert if pressure is below 1.8 bar or above 3.0 bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset promptly, the system will still record the previous data, causing the indicator light to remain on. Simply reset the tire pressure to resolve this. Damaged tire pressure sensor: The tire pressure sensor, installed inside the tire and connected to the inflation valve, monitors tire pressure. If the sensor is damaged due to impact while driving, the tire pressure warning light will illuminate. A damaged sensor must be replaced with a new one.
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Mercedes
08/12/25 9:26am
When driving my Buick Excelle, I regularly check the tire pressure, which typically ranges between 2.2 and 2.5 bar, as indicated on the door frame sticker or the owner's manual—it's usually measured when the vehicle is cold to avoid inflation effects from heat. I remember my car's optimal pressure is marked at 2.4 bar. During hot summers, I slightly reduce it to 2.3 bar to prevent blowouts, while in cold winters, I increase it to 2.5 bar for better traction. Overinflated tires make the ride harsh and uncomfortable, while underinflation wastes fuel, accelerates sidewall wear, and poses safety risks. That's why I've made it a habit to check with a simple pressure gauge every two weeks—it's both convenient and safe.
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