Buick Allure Vehicle Speed Sensor in US

The vehicle speed sensor on the Buick Allure is a single component whose data feeds multiple vehicle systems at once on your Allure. When it fails on the Buick Allure, the effects appear across your Allure speedometer, transmission, cruise control, and ABS simultaneously, making diagnosis less straightforward than a fault that affects only one system on the Buick Allure.

Signs of a Failing Vehicle Speed Sensor on the Buick Allure

• Speedometer on your Buick Allure reading zero, displaying erratically, or showing an inaccurate speed
• Harsh, erratic, or delayed transmission shifting on the Allure, the TCM uses speed data to determine shift points
• Cruise control on your Buick Allure refuses to engage or cuts out unexpectedly during use
• ABS or traction control warning lights illuminated on the Allure dashboard
• Check engine light on your Buick Allure with stored codes P0500, P0501, or P0502
• Allure transmission entering limp mode, locking into a single gear to prevent damage

Transmission-Mounted vs. Wheel-Mounted Speed Sensors on the Buick Allure

On older Buick Allure vehicles and most rear-wheel-drive designs, a dedicated transmission-mounted speed sensor monitors output shaft speed on the Allure and serves as the primary reference for the Allure speedometer and transmission control module. On modern Buick Allure front-wheel-drive and all-wheel-drive platforms, wheel hub sensors serve the dual function of ABS speed sensing and vehicle speed data delivery on the Allure, one sensor feeding multiple Buick Allure systems from a single mounting point.

Why GeoBrakes for the Buick Allure Vehicle Speed Sensor

Signal accuracy is the defining specification for a Buick Allure vehicle speed sensor. A sensor that generates the wrong pulse frequency for your Allure control modules produces incorrect speedometer readings, mis-timed transmission shifts, and inaccurate ABS calibration on your Buick Allure, even if it passes a basic resistance test. Every speed sensor in the GeoBrakes catalogue is sourced to the correct signal frequency for the Buick Allure exact year, make, model, and sensor position.

Frequently Asked Questions - Buick Allure Vehicle Speed Sensor

Can a faulty speed sensor affect the transmission on my Buick Allure?

Yes. The Buick Allure transmission control module relies on vehicle speed data to calculate correct shift timing. A failed Allure speed sensor can cause erratic shifting, delayed upshifts, incorrect downshifts, or trigger Allure limp mode.

Will a bad vehicle speed sensor turn on the check engine light on my Buick Allure?

Yes. A failed Buick Allure vehicle speed sensor typically stores fault codes P0500, P0501, or P0502. Depending on the Allure, it may also trigger ABS, traction control, or transmission warning lights simultaneously.

Is the vehicle speed sensor the same as the ABS wheel speed sensor on my Buick Allure?

On many modern Buick Allure vehicles, yes, wheel hub sensors serve both the ABS system and vehicle speed sensing simultaneously on your Allure. On older Allure vehicles with transmission-mounted speed sensors, they are separate components. Use the GeoBrakes vehicle selector to confirm the correct sensor type for your Buick Allure.