Will this work on a 2015 and 2017 gmc sierra?

yes,it works on my 2016 chevy express and my 2010 savana

Do you have to keep button pressed til horn beeps or do you press and release then wit?

Press and hold button until horn beeps. Read the instructions you should have received when purchasing it... CBN......

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JDIAG EL-50448 TPMS Relearn Tool for Auto Tire Pressure Monitor System Sensor Activation TPMS Reset Tool OEC-T5 for Buick/Chevy/Cadillac Series Vehicles 2026 Edition

Product ID: 471618127

Details

Brand
JDIAG
Material
Plastic
Maximum Supply Voltage
9 Volts
Measuring Range
15 - 150 PSI
Style
Modern

⚡Faster sensor activation

📏5cm precise sensing distance

🔋Energy-saving design

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Reset Smarter, Drive Safer — The Ultimate TPMS Tool for the Modern Driver

SAVE 20 80 INSTANTLY - Avoid costly dealer visits—activate and reset your tire sensors in under 2 minutes.
EFFORTLESS 3 STEP RESET - Simplify your TPMS reset with just three easy steps—no mechanic needed.
ENERGY EFFICIENT DURABLE - Upgraded design uses less power while delivering stronger, more sensitive performance.
PRECISION SENSOR ACTIVATION - 5cm sensing distance ensures accurate and reliable tire pressure monitor relearning every time.
UNIVERSAL 2006 2026 COVERAGE - Supports Chevy, Buick, Cadillac & more with 315/433 MHz sensors across 20 years of models.

The JDIAG EL-50448 TPMS Relearn Tool is a 2026-updated, energy-efficient device designed to quickly activate and reset tire pressure sensors on Chevy, Buick, Cadillac, and other vehicles from 2006 to 2026. Featuring a precise 5cm sensing range and simple 3-step operation, it saves users $20-$80 by eliminating dealer visits, making tire maintenance faster, easier, and more cost-effective.

Specifications

ASIN	B0B9267ZF3
Best Sellers Rank	#20,356 in Automotive ( See Top 100 in Automotive ) #66 in Replacement Tire Pressure Monitoring System (TPMS) Sensors
Brand Name	JDIAG
Customer Reviews	4.2 4.2 out of 5 stars (6,608)
Manufacturer	JDIAG
Material Type	Plastic
Maximum Supply Voltage	9 Volts
Measuring Range	15 - 150 PSI
Model	EL-50448
Mounting Type	Tire Mount
Output Type	Analog
Part Number	EL50448
Sensing Distance	5 Centimeters
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Pressure
Style Name	Modern
UPC	789513420559
Unit Count	1.0 Count

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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