What to do when the Audi A4L tire pressure warning light is on but the tire pressure is normal?

[LeDakota]

First, check if the warning light is still on. If it is, locate the operation switch to perform a manual reset. Access the main menu, find the tire pressure monitoring system, and reset the tire pressure data. Save the settings once the data is successfully reset. Below is an introduction to the Audi A4L: 1. Introduction: The Audi A4L is a model officially launched by Audi on November 16, 2008. The new Audi A4L features a completely redesigned exterior and chassis, with front and rear designs that closely resemble the Audi A5. 2. Exterior: The exterior is stylish and dynamic, with smooth lines; the interior is finely crafted with good configurations; the sound system delivers excellent performance; the spacious interior is practical and comfortable; the brand is iconic. 3. Handling: The handling is comfortable with a sporty bias, offering a wide field of vision and a good steering wheel feel; the tires provide excellent grip, the chassis is solid, and the off-road performance is commendable; the brakes are responsive with minimal noise.

[VanJosiah]

I've been repairing Audis for nearly a decade, and false tire pressure warnings are quite common. Don't rush to continue your journey—first find a safe place to park and restart the engine. Sometimes the onboard computer acts up. If the warning persists after restarting, use the tire pressure gauge that came with the car to check all four tires meet the standard values listed on the B-pillar sticker (usually 2.3-2.5 bar). If the pressure is indeed normal, go to the vehicle settings in the central display, find the tire pressure monitoring option, and manually reset to store the current pressure. After resetting, drive 2-3 kilometers to let the system relearn—in most cases, the warning will disappear. However, I've seen many cases where the sensor battery is depleted, especially in cars over five years old. If the warning light keeps coming back after resetting, you'll need to visit a shop to read the fault codes with a diagnostic tool and replace the sensor.