If your Trax’s TPMS warning light stays on after you’ve verified that the tire pressure is correct, jump down to the next section.Ĭhevy Trax: TPMS Light Staying On Causes 1. If you need help filling a tire, there’s a section on inflating tires at the end of this article. Some service stations will let you program the air pressure, while others only have an air hose. Most gas stations have an air compressor that you can use to add air. If the tires are overinflated, let some air out. It has the manufacturer’s recommended tire PSI and size. Use the sticker on the inside of your Trax’s door. Overinflated tires can be just as dangerous as underinflated tires. Verify that they match the Chevy’s recommended psi (there’s a sticker that’ll tell you inside the driver’s door). Check the Tire PressureĬheck the tire pressure on all four of your vehicle’s wheels with a tire pressure gauge. You should check all of your Trax’s tires simultaneously to avoid going through this process again in a few weeks (tires without leaks lose pressure at about the same rate). Once you know the tire pressure checks out, the TPMS light stops becoming a safety concern, even if it doesn’t turn off.ĩ9% of the time, getting the tire pressure back to the recommended pressure will turn off your Trax’s TPMS light. It’s unlikely your Chevy Trax has this system.Ĭheck and fill all the tires. The wheel speed sensors pick up on this and report it to the PCM. If a tire gets too low, it’ll turn minutely faster than a full tire. It uses this data to report if the tire pressure is low. Indirect tire pressure monitoring takes data from the wheel speed sensors. TPMS Light– Indicates that one of the tire pressure sensors has detected an improperly inflated tire or there is an issue with the TPMS system.Receiver– The sensors are wireless and transmit data to a receiver if the data from any of these sensors indicate that your Trax’s tire pressure is too low (usually 25% under the recommended pressure), the TPMS light will come on.Tire Pressure Sensors- They monitor the tire pressure in each wheel directly. They are battery-powered, transmit data wirelessly, and usually last about ten years.Direct Monitoringĭirect tire pressure monitoring systems come on virtually all new vehicles. Your Chevy Trax almost certainly has the “direct” version. There are two main types of tire pressure monitoring technology. How Tire Pressure Monitoring Systems Work The most common reasons the TPMS light won’t go out are over or under-inflated tires or a tire pressure sensor-related issue. Once you very that your vehicle has the proper tire pressure, the TPMS is not a safety concern or breakdown risk. If your Chevy Trax has a tire pressure warning light, it can only be caused by a few things. If you have a TPMS warning light, your vehicle’s tire pressure must be checked. The tire pressure monitoring system (TPMS) light is the most common warning light on a modern vehicle. The TPMS light indicates that your Chevy Trax’s tire pressure is above or below the minimum threshold set by the manufacturer.
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