Hyundai Tech Tip: Very Brief, Slight Headlamp Dimming

Hyundai Tech Tip: Very Brief, Slight Headlamp Dimming

The 1999-2003 Sonata, 2001-2003 Santa Fe and 2003 Tiburon V6 may exhibit a very brief, slight dimming of the headlamps for only a few seconds immediately after: the A/C compressor clutch is activated; the rear defroster is turned on; the HVAC fan is turned on high; or any other large electrical load is encountered.

The 1999-2003 Sonata, 2001-2003 Santa Fe and 2003 Tiburon V6 may exhibit a very brief, slight dimming of the headlamps for only a few seconds immediately after:

• The A/C compressor clutch is activated;
• The rear defroster is turned on;
• The HVAC fan is turned on high; or
• Any other large electrical load is encountered.

In order to minimize engine RPM fluctuation, an electronic control system is utilized to gradually increase the electrical load on the generator.

This load control results in the very brief (less than 5 seconds), very slight dimming of the headlamps.

This condition does not adversely affect visibility or headlamp illumination in any manner. Some customers may notice this characteristic and may ask if this constitutes normal operation. This condition is NORMAL and does not reflect any malfunction of the electrical system. Do not attempt to repair this condition.

Courtesy of Mitchell 1.

For more information on Mitchell 1 products and services, automotive professionals can log onto the company’s website at www.mitchell1.com.

You May Also Like

Lexus and Toyota Camera Calibration (VIDEO)

Joe Keene discusses how to calibrate the camera on a 2021 Lexus UX where the camera was removed and reinstalled.

Joe Keene discusses how to calibrate the camera on a 2021 Lexus UX that suffered damage to the roof. The camera was not replaced but simply removed and reinstalled — but as with all ADAS vehicles, any time the camera is disrupted, removed, reinstalled or replaced, a calibration is necessary.

TechShop Reveal: Streamlight Stinger Color-Rite Flashlight

TechShop Reveal provides a 360 product video highlighting the industry’s latest innovations.

Utilizing NVH Tools

Technology has been improving on NVH tools over the years.

AAPEX 2022: Get to Know Performance Ride Technology

PRT displayed a new product line and its extensive portfolio of heavy-duty applications at AAPEX 2022.

The Striking Point Podcast: Getting Prepared for EVs

In an all-new video podcast series, John Forro of Autel sits down with the TechShop team to discuss all things EV.

Other Posts

Autel Energy Releases its Newest EV Charger

The AC Ultra features an 8-inch LCD touchscreen, a pedestal and a charging cable management system.

Struts and Memory Steer

We can summarize the cause of memory steer in one word: binding.

Limited-Slip Differentials And Diagnostics

A limited-slip differential helps to control the tangential forces.

Why Is This Brand New PS Pump So Noisy? (VIDEO)

There are several questions which you should ask yourself in this scenario. This video is sponsored by Rislone.