How do you fix TPMS malfunction?
Treat a TPMS malfunction by diagnosing the fault, ensuring proper tire pressure, and then resetting or relearning the system or replacing faulty sensors as needed.
TPMS, or Tire Pressure Monitoring System, is designed to alert you when a tire is underinflated or when the system itself has a fault. Malfunctions can arise from simple inflator errors, aging sensors, or software issues. This guide walks you through practical steps, from quick checks you can do at home to when to seek professional help.
Understanding TPMS and common causes
TPMS problems can stem from a combination of tire pressure issues, sensor health, and system software. Knowing the likely culprits helps you target the right fix without unnecessary service calls.
Before you begin any fixes, consider these common causes that trigger a malfunction warning or a non-responsive system.
Addressing these potential causes often resolves the issue without replacing parts. If the warning persists after addressing these items, deeper diagnostics may be required.
Immediate checks you can perform
The quickest path to a fix is to start with basic checks and simple adjustments. These steps are typically safe for most drivers to perform themselves.
After these checks, recheck the TPMS indicator after driving for a short distance. If the light remains on or flashes, proceed to reset or relearn the system or seek professional help.
Resetting or relearning the TPMS
Many vehicles require a relearn or reset procedure after inflating tires, rotating wheels, or changing sensors. The exact method varies by make and model, so consult your owner’s manual for model-specific instructions.
- In many cars, you must drive at highway speeds (often 30–50 mph or higher) for 10–20 minutes to complete a relearn
- Some vehicles require a dedicated TPMS relearn trigger or a button sequence (for example, a TPMS button, or a menu option under Vehicle Settings)
- If the light does not reset after the relearn attempt, a diagnostic scan with a TPMS-enabled tool may be needed to program wheel sensor IDs or check for a faulty sensor
Successful relearn should result in the TPMS light turning off within a few minutes of normal driving. If it remains on, more in-depth diagnostics are warranted.
Sensor health and replacement options
TPMS sensors live in each wheel and contain a battery that degrades over time. When sensors fail, replacement is typically required, often accompanied by programming to the vehicle.
After sensor replacement, ensure the system is relearned and tested for proper operation. Sensor replacement costs vary by vehicle and whether the sensor is direct- or indirect-style TPMS.
Professional help and when to seek it
When home troubleshooting does not resolve the malfunction, or if you notice tire damage or a persistent warning, professional service is advisable. Technicians can perform precise diagnostics and ensure proper sensor relearn and calibration.
- If the TPMS warning persists after inflating tires and attempting a relearn
- If you suspect a faulty sensor, damaged wiring, or a malfunctioning TPMS control module
- If tires were recently replaced or rotated and a proper relearn cannot be completed
- If you lack access to the diagnostic tools required for TPMS programming
A certified tire shop or dealership can diagnose with a TPMS-enabled scan tool, replace sensors if needed, and perform the correct relearn procedure for your vehicle.
Prevention and safety tips
Preventing TPMS malfunctions involves ongoing maintenance and awareness of tire health. Regular checks help keep you safe on the road.
Regular maintenance and prompt attention to TPMS warnings reduce the risk of sudden tire underinflation issues and help extend tire life and vehicle safety.
Summary
A malfunctioning TPMS can be addressed with systematic checks: verify correct tire pressures, inspect tires and sensors, perform a relearn or reset as prescribed, and replace faulty sensors when needed. If basic steps don’t resolve the issue, professional diagnostics and service are recommended to ensure accurate readings and ongoing vehicle safety.
Can AutoZone fix TPMS sensors?
At AutoZone, we carry replacement TPMS sensors for most makes and models. And if you need help resetting the TPMS light, we can offer helpful advice or refer you to a shop in our professional network.
Where is the TPMS reset button?
The TPMS reset button is typically located under the steering wheel, on the dashboard, or inside the glove box. If your car has a touchscreen display, the reset function is often found in the "vehicle settings" or "TPMS calibration" menu. For specific locations, check your owner's manual or look for a button with the TPMS icon (a tire with an exclamation mark).
You can watch this video to learn how to reset the low-tire-pressure indicator on a display audio model: 1mHondaYouTube · May 15, 2019
Common locations
- Under the steering wheel: Look for a button on the left side of the steering column.
- Glove box: Some vehicles have a hidden button located inside the glove box.
- Dashboard: The button might be on the side of the dashboard or integrated into the instrument panel.
- Touchscreen display: Many modern vehicles have the option in the main menu, often under "Vehicle Settings" or a dedicated "TPMS" menu.
How to reset
- Adjust tire pressure: Ensure all tires are inflated to the correct pressure, which is usually listed on a sticker in the driver's side door jamb.
- Find the reset button: Locate the physical button or navigate to the TPMS menu on the dashboard's infotainment screen.
- Press and hold: Press and hold the reset button until the TPMS light flashes three times, or follow the on-screen instructions to select "calibrate".
- Drive the vehicle: Drive for at least 5-10 minutes to allow the system to reset.
This video demonstrates how to reset the TPMS on a Chevy Equinox: 59sPro Tips PlusYouTube · May 4, 2024
How to fix a malfunctioning TPMS sensor?
Take all your tpms sensors out. Replace with a standard stem. Get a 4'' steel pipe, cap on end. Thread a nipple onto another cap end. Throw good tpms sensors into pipe. Cap the pipe. Pressurize to desired psi. Toss under seat and next time the sensor goes out, fish out the faulty sensor and replace.
How much does it cost to repair a TPMS sensor?
The average cost to repair a TPMS (Tire Pressure Monitoring System) is between $70 and $250 per sensor, including parts and labor. Costs can vary depending on the vehicle, the type of sensor, and whether you choose a dealership, an independent mechanic, or a DIY approach. The total price depends on the number of sensors that need replacement, as it's common for other sensors to fail around the same time.
Professional replacement
- Average cost: $70 to $250 per sensor
- Dealership: Often more expensive due to higher labor rates, but uses certified technicians and OEM parts
- Independent mechanic: Generally lower labor rates but ensure they have experience with TPMS systems
- Other options: Some tire retailers like Costco or Sam's Club may offer lower prices, but costs can vary
DIY replacement
- Cost: Significantly lower, only paying for the cost of the sensors
- Sensor cost: Varies from $20 to $150 or more depending on the brand
- Additional costs: May include the cost of tools, potting compound, valve stem mounting kits, and other parts
Factors that affect the cost
- Vehicle make and model: Luxury or newer models may have more sophisticated and expensive sensors
- Type of sensor: Direct TPMS sensors are more expensive than indirect ones
- Number of sensors: Replacing multiple sensors can be cheaper per-sensor if you can get a package deal
