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  • KINGBOLEN EL-50448 red handheld TPMS tool with one white button and TX and LOWBAT lights
  • KINGBOLEN EL-50448 made for GM 2006–2023 315/433 MHz TPMS, with one-button activate relearn
  • KINGBOLEN EL-50448 held at the valve stem, showing correct vertical and parallel antenna positions
  • KINGBOLEN EL-50448 GM TPMS relearn tool aimed at a wheel, labeled 315/433 MHz
  • EL-50448 use cases: new sensors, tire-pressure service, seasonal tire change, and a TPMS warning light
  • KINGBOLEN EL-50448 TPMS tool for GM light trucks, pickups, SUVs, and cars
  • KINGBOLEN EL-50448 front and back showing antenna, TX and low-battery lights, power button, and 6 by 2.3 inch size
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Kingbolen

KINGBOLEN EL-50448 GM TPMS Relearn Tool

$9.90 USD
$9.90 USD $19.90 USD
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The KINGBOLEN EL-50448 is a compact TPMS relearn and tire pressure sensor activation tool designed for compatible GM-series vehicles with 315 MHz or 433 MHz factory TPMS. It helps the vehicle relearn all four tire positions after tire rotation, sensor replacement, or receiver module service. Simply place the vehicle in TPMS learn mode, hold the tool near the valve stem, and press the button until the horn confirms activation. A 9V battery is required and not included.

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  • US warehouse
  • 30-day returns
  • 1-year seller warranty
  • GM TPMS Relearn Tool – Designed for compatible Opel, Buick, Cadillac, Chevrolet, GMC, and other GM-series vehicles.
  • 315/433 MHz Sensor Activation – Activates compatible original factory TPMS sensors operating at 315 MHz or 433 MHz.
  • Essential After Tire Service – Helps relearn all four tire positions after tire rotation, TPMS sensor replacement, or receiver module replacement.
  • Simple One-Button Operation – Enter the vehicle’s TPMS learn mode, position the tool near the valve stem, and press the activation button.
  • Fast Relearn Procedure – Typically completes activation of all four compatible tire sensors in approximately 1–2 minutes.
  • Compact and Durable Design – Lightweight PVC housing is dust-resistant, wear-resistant, and impact-resistant for convenient vehicle or toolbox storage.

Learn more

What is the KINGBOLEN EL-50448 used for?

It is a TPMS activation / relearn tool for GM-series vehicles. Use it after tire rotation, new TPMS sensor install, tire replacement, seasonal tire swap, or after repairs when the TPMS light needs to be reset so the vehicle ECU relearns each sensor position.

Which vehicles are compatible?

It is designed for GM series vehicles equipped with 315 MHz or 433 MHz tire pressure monitor sensors — including Chevy, Buick, GMC, Opel, Cadillac, and similar GM models. Confirm your vehicle has an original factory TPMS before purchase.

When do I need a relearn tool?

Common cases include: new TPMS sensors that the system will not recognize by airing up/down alone; tire rotation without an easy ECU relearn; TPMS light still on after maintenance; low pressure/leakage/sensor damage/replacement; or swapping winter and summer tires.

How do I put the car into TPMS relearn mode?

Put the gear in Park, use the vehicle menu/cruise controls to select TPMS relearn mode. The horn typically rings twice and the TPMS indicator flashes (message center may show LF/front-left). Then use EL-50448 at each tire in order.

How do I use the EL-50448?

1)Set the car into TPMS relearn mode (horn twice). 2) Start at the left-front tire — hold the tool next to the valve stem and press the white button; horn bleats once. 3) Continue front-right → rear-right → rear-left. After all sensors are done, the car horns twice to confirm relearn finished.
 View Product Details
KINGBOLEN EL-50448

The KINGBOLEN EL-50448 is a compact one-button TPMS relearn and tire pressure sensor activation tool designed for compatible GM-series vehicles equipped with 315 MHz or 433 MHz factory TPMS sensors. It helps the vehicle relearn the position of all four tire sensors after common tire and TPMS service procedures.

DESIGNED FOR GM-SERIES VEHICLES
315 MHz & 433 MHz TPMS Compatibility

The EL-50448 is designed for compatible GM-series vehicles, including selected Opel, Buick, Cadillac, Chevrolet, and GMC models equipped with original 315 MHz or 433 MHz tire pressure monitoring systems. Approximate compatibility covers model years 2006–2023, but vehicle compatibility should always be confirmed before purchase.

RELEARN SENSORS AFTER TIRE SERVICE
Restore the Correct Tire Positions

Use the EL-50448 after tire rotation, original TPMS sensor replacement, seasonal tire changes, or remote door lock receiver module replacement. The tool activates each compatible sensor so the vehicle can relearn and store the correct position of all four tires.

SIMPLE ONE-BUTTON OPERATION
Activate Sensors in Three Basic Steps
1. Set the vehicle to TPMS learn mode according to its service procedure. 2. Hold the tool against the tire sidewall near the valve stem. 3. Press the activation button until the vehicle horn confirms the sensor.
FAST TPMS SENSOR ACTIVATION
Complete a Typical Relearn in 1–2 Minutes

The responsive one-button design helps activate compatible factory TPMS sensors quickly. When the vehicle is correctly placed in learn mode and the tool is properly positioned, the four-sensor relearn procedure can typically be completed in approximately 1–2 minutes.

CORRECT TOOL POSITIONING
Place the Antenna Near the Valve Stem

For reliable activation, hold the antenna against the tire sidewall close to the valve stem. Keep the antenna correctly aligned while pressing the button. The required position and activation time may vary between vehicles and tire designs.

COMPACT & DURABLE DESIGN
Easy to Carry and Store

The lightweight PVC housing is dust-resistant, wear-resistant, and impact-resistant for routine garage and roadside use. Its compact handheld design makes the EL-50448 easy to keep in a vehicle, glove box, service cart, or toolbox.

Important Compatibility Notes
Designed for compatible original factory TPMS systems only. Not compatible with heavy trucks or external and aftermarket TPMS systems. This tool activates sensors for relearn; it does not program blank TPMS sensors. It is not a full-system OBD2 diagnostic scanner. Confirm the vehicle model, year, sensor type, and relearn procedure before purchase. A 9V battery is required and is not included.
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