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TPMS stands for Tire Pressure Monitoring System. It’s a vehicle safety feature that alerts you when one or more tires are significantly underinflated. If the TPMS warning light appears on your dashboard, check your tires and measure their pressure as soon as it’s safe. A solid light usually means low tire pressure, while a light that flashes for about a minute before staying on generally indicates a system malfunction. Whether you’re commuting around Blair, driving through Omaha, or dealing with Nebraska’s changing temperatures, understanding your TPMS can help you recognize tire problems before they become more serious.
TPMS means Tire Pressure Monitoring System. The system monitors tire inflation directly or indirectly and warns the driver when tire pressure falls below the system’s specified threshold. A low-pressure warning gives you an opportunity to check the tires and address a possible problem.
The most common TPMS dashboard symbol looks like a tire cross-section or horseshoe shape with an exclamation point in the middle. Some vehicles also display text such as “Low Tire Pressure,” “Check Tire Pressure,” or “Service Tire Monitor System.”
TPMS is required on U.S. passenger cars, light trucks, and vans beginning with the 2008 model year. Some earlier vehicles also have the feature. Although the system is helpful, it doesn’t replace regular tire inspections or monthly pressure checks.
A steady tire pressure warning light generally means one or more tires are significantly underinflated. A flashing TPMS light that becomes solid commonly indicates a malfunction. The correct response depends on the warning behavior and whether the tires are visibly damaged.
| TPMS Warning | Possible Meaning | Recommended Action |
|---|---|---|
| Solid yellow tire pressure light | One or more tires are significantly underinflated. | Stop safely, inspect the tires, and check inflation with a gauge. |
| Flashes for about 60–90 seconds, then stays solid | A TPMS system malfunction may be present. | Check tire pressure manually and arrange system diagnosis. |
| Appears during cold weather, then disappears | Borderline low tire pressure may change as the tires warm up. | Check every tire cold and inflate to the manufacturer’s recommendation. |
| Stays on after air is added | Pressure may still be low, a leak may be present, or the system may need to update or be serviced. | Confirm cold pressure and follow the vehicle-specific troubleshooting procedure. |
| Warning after tire replacement or rotation | Pressure may need adjustment or sensor positions may require relearning. | Check tire inflation and the manufacturer’s TPMS relearn requirements. |
Important: Don’t ignore a TPMS warning simply because the tires look normal. A significantly underinflated tire may not appear visibly flat. Always use an accurate tire pressure gauge to verify inflation.
TPMS works by monitoring tire pressure or changes in wheel rotation and alerting the driver when an underinflation condition is detected. There are two main types: direct TPMS and indirect TPMS.
Direct TPMS uses pressure sensors associated with the wheels to measure tire inflation. The sensors communicate information to the vehicle’s monitoring system, which can activate a dashboard warning when pressure falls below the required threshold.
Many Chevrolet vehicles use direct TPMS and may display individual tire pressure readings on the driver information screen. Depending on the model, sensor identification and wheel positions may need to be relearned after certain tire services.
Indirect TPMS estimates tire underinflation using information from wheel-speed sensors and other vehicle systems. A tire with reduced pressure may have a different effective rolling circumference, which the system can use to detect a possible problem.
Indirect systems generally require a manufacturer-specific calibration or initialization process after pressure adjustments or certain tire services. Their operation differs from systems using individual in-wheel pressure sensors.
Both systems are designed to provide an underinflation warning. Neither guarantees that every tire problem will be detected immediately.
If your TPMS warning light comes on and stays illuminated, find a safe place to stop, visually inspect the tires, and check their pressure. If a tire is severely underinflated or visibly damaged, don’t continue driving on it.
If the tires are warm from driving, remember that pressure naturally increases as they heat up. Do not release air from warm tires simply to match the recommended cold pressure. Recheck inflation when the tires are cold.
For a complete inflation walkthrough, read our guide to filling car tires with air.
Cold weather can trigger the tire pressure warning light because air pressure decreases as temperatures fall. As a general rule, tire pressure changes by approximately 1 PSI for every 10°F change in temperature, although actual changes vary.
For example, a tire that was properly inflated during warm weather may fall below its TPMS warning threshold after a sharp overnight temperature drop. As the tire warms during driving, its pressure may rise enough for the warning to turn off.
This can happen frequently during Nebraska’s fall and winter temperature swings around Blair, Omaha, and Fremont.
To reduce recurring cold-weather TPMS warnings:
If you repeatedly need to add air to the same tire, have it inspected for a puncture, damaged valve stem, wheel leak, or another problem.
A TPMS warning that flashes for approximately 60 to 90 seconds and then remains illuminated generally indicates a malfunction in the monitoring system. This differs from a solid low-pressure warning.
Possible causes include:
A flashing warning does not automatically mean the sensor battery is dead. The specific fault must be identified through the manufacturer’s diagnostic procedure.
Because the system may not be able to warn you reliably about low tire pressure during a malfunction, check tire inflation manually and arrange inspection if the warning continues.
If the TPMS warning remains on after you add air, first confirm that every tire has the correct cold pressure. A tire can look full while still being underinflated, and an inaccurate air-pump gauge can leave the tire below the required value.
Other possible explanations include:
If all tires are correctly inflated when cold and the light remains on, follow your owner’s manual or arrange professional diagnosis. Do not deliberately deflate the tires or disconnect the battery as a general reset method.
The correct TPMS reset procedure depends on your vehicle’s year, make, model, and monitoring system. Some vehicles automatically clear the warning after correct tire inflation and normal driving. Others require a calibration or sensor relearn.
For many Chevrolet vehicles equipped with direct TPMS, sensor identification or wheel position relearning may require a compatible TPMS activation tool. Other vehicles have different procedures.
Before attempting any reset:
A reset does not repair an underinflated tire or a malfunctioning sensor. Review our tire pressure light troubleshooting guide for related information, but always prioritize the manufacturer’s instructions for your vehicle.
Some vehicles require a TPMS sensor relearn after tire rotation so the displayed wheel positions match the sensors’ actual locations. Others can update automatically or use a different calibration method.
On vehicles that show individual tire pressures, an incorrect sensor position can cause the display to identify the wrong tire as low. That can make diagnosing a leak or inflation problem confusing.
When tires are rotated, the technician should also check whether front and rear inflation pressures differ and adjust them for their new positions.
Learn more about routine tire maintenance in our guide to why tire rotation is important.
Driving with a TPMS warning can be unsafe if a tire is significantly underinflated. Underinflation affects tire temperature, handling, wear, and the ability of the tire to carry the vehicle’s load.
If the warning appears, check the tires as soon as it’s safe. A tire that is flat, visibly damaged, or severely underinflated may require roadside assistance rather than continued driving.
If the warning indicates a monitoring-system malfunction but tire pressures have been independently verified as correct, the vehicle may still have properly inflated tires. However, the warning system may not be reliable until it is repaired, so manual tire pressure checks become especially important.
Do not assume that the TPMS light alone can tell you whether a tire is safe to drive on. Tire condition, damage, inflation, and vehicle behavior must also be considered.
Proper tire inflation helps support vehicle handling, braking traction, tire durability, and efficiency. TPMS is useful because it alerts drivers to significant underinflation, but keeping tires at the correct pressure requires regular checks.
Correct inflation does not guarantee protection against hydroplaning, punctures, or other tire problems. Adequate tread depth, appropriate tire selection, safe driving speeds, and regular inspections remain important.
Check your tire pressure at least once a month and before long trips, even if your vehicle has TPMS. The system is designed to warn about significant underinflation, not to replace regular maintenance.
For an accurate reading, check your tires when they’re cold, generally after the vehicle has been parked for at least three hours. Use the recommended pressure listed on the driver’s door placard, not the maximum inflation pressure molded into the tire sidewall.
You should also inspect the tires for cuts, bulges, embedded objects, cracking, and uneven tread wear. If the vehicle uses a temporary spare, check its required inflation separately according to the manufacturer’s instructions.
TPMS repair costs depend on the vehicle, the reason for the warning, and whether the issue involves tire inflation, sensor replacement, valve service, programming, or additional diagnosis.
Several factors may affect the estimate:
For a vehicle-specific estimate, our Sid Dillon Chevrolet Tire Center can inspect the tires and monitoring system. You can also review our service and parts specials for available offers.
If your tire pressure warning light won’t go away, a tire keeps losing air, or your vehicle displays a “Service Tire Monitor System” message, Sid Dillon Chevrolet Blair can help identify the cause.
Our Chevrolet service center in Blair, Nebraska assists drivers from Omaha, Fremont, Washington County, and surrounding communities with tire pressure checks, tire inspections, TPMS concerns, tire rotations, and replacement tires.
Ready to get your warning light checked? Schedule your service appointment online, call our main dealership number at (402) 426-4121, or explore our Tire Center for additional tire care services.
TPMS stands for Tire Pressure Monitoring System. It is a vehicle safety feature that warns the driver when one or more tires are significantly underinflated. Depending on the vehicle, the system uses sensors inside the wheels or information from other vehicle sensors to detect potential low tire pressure.
Find a safe place to stop, inspect your tires, and check their pressure with an accurate gauge. Inflate to the manufacturer’s recommended cold pressure if the tires are otherwise safe. If a tire is flat, severely underinflated, or visibly damaged, avoid driving on it and arrange appropriate assistance.
A solid TPMS warning generally indicates that one or more tires are significantly underinflated. A warning that flashes for about 60 to 90 seconds before remaining solid generally indicates a monitoring-system malfunction. Check tire pressure manually and have a persistent system fault diagnosed.
Tire pressure decreases as temperatures fall, often by approximately 1 PSI for every 10°F temperature change. A tire that is slightly low may trigger the warning on a cold Nebraska morning, even if the light disappears after driving. Check each tire when cold and inflate it to the manufacturer’s recommended pressure.
Possible causes include inaccurate or warm tire readings, a slow leak, a delayed system update, incorrect sensor positions after rotation, or a TPMS malfunction. Confirm all tires meet the recommended cold pressure, then follow your vehicle’s troubleshooting or relearn instructions. A persistent warning may require professional diagnosis.
Some vehicles require a TPMS sensor position relearn after tire rotation, while others update automatically or use a different calibration procedure. If your vehicle shows individual tire pressures, the relearn helps identify the correct wheel position. Follow the owner’s manual and adjust tire pressures for the new positions when required.
Do not ignore the warning. A solid light may indicate significant underinflation that can affect handling, generate heat, and damage a tire. Stop safely and check the tires before continuing. If a tire is severely underinflated or damaged, do not drive on it. A TPMS system malfunction also needs attention because the warning system may not operate reliably.
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