TRISCO TPMS Relearn Tool U508 — Universal 315/433 MHz Handheld Reset for GM & Ford

The TRISCO U508 is a handheld TPMS relearn tool that quickly activates and resets tire pressure sensors on compatible GM, Jeep, Ford, Chrysler and Dodge vehicles in minutes.

If you replace a tire sensor, change wheels, or see a persistent TPMS warning light, the U508 gives you a fast, low-cost way to re-learn the vehicle’s sensors without a trip to the dealer. It transmits at 315 MHz or 433 MHz and follows the vehicle’s stationary relearn process to register each sensor in sequence.

How does the U508 actually reset my vehicle’s TPMS light?

The U508 sends the activation signal to each tire’s sensor while the vehicle is in its relearn mode. Once a sensor is detected, the unit chirps and you move on to the next wheel until the car confirms completion.

• Requires vehicle-specific stationary relearn mode (car horn confirmation).
• Use a fresh 9V battery (not included) for reliable transmission.
• Follow the wheel order: front left, front right, rear right, rear left.
• Tool confirms each successful read with an audible tone.

Will the U508 work with aftermarket sensors or any car model?

The U508 can reset sensors that are already programmed and operating on compatible frequencies (315 MHz or 433 MHz), but it does not program blank or incorrectly-frequency sensors. Compatibility depends on vehicle make, model year, and sensor frequency.

• Compatible with many Cars, SUVs and pickups using stationary relearn.
• Not for heavy trucks with more than four tires or unsupported relearn methods.
• Check your vehicle year and sensor frequency before purchase (e.g., 2013 Ford Escape frequency matters).
• The tool resets but does not program new blank sensors.

What do I need to prepare before using the TRISCO U508?

Preparation reduces troubleshooting: ensure your vehicle can enter relearn mode, install a new 9V battery, and confirm each sensor is an OEM or correctly-programmed replacement. Also position the vehicle straight and place the antenna over the correct tire area.

• Confirm stationary relearn support in your owner’s manual.
• Install a fresh 9V battery for full signal strength.
• Ensure tires are straight for front sensor reads when instructed.
• Use only programmed sensors at the correct frequency (315/433 MHz).

How long does a full relearn take and what should I expect?

A typical relearn takes about 1–2 minutes per sensor; the whole process usually finishes within 5–10 minutes for four tires. Expect audible confirmations from both the U508 and the vehicle (horn chirps) when registration is successful.

• About 1–2 minutes to activate each sensor.
• Move the tool to each wheel in the prescribed order after the chirp.
• Car horn confirmation indicates a completed relearn cycle.
• If a sensor isn’t recognized, recheck frequency and programming of the sensor.

Who is this for: the TRISCO U508 is built for DIYers, tire shops, and fleet managers who need a fast, portable way to re-learn TPMS sensors on supported GM, Jeep, Ford, Chrysler and Dodge vehicles. It’s ideal if you swap wheels, replace sensors with pre-programmed units, or want to avoid repeated service visits — provided your vehicle uses the stationary relearn method and your sensors use the correct frequency.