Headlights won't work 2001 Hyundai elantra gls

SOURCE: Hyundai elantra headlights and dashboard lights

I've had my elantra for a year and a half and Im on my 5TH pair of halogen headlight lamps what's the problem??

PAUL MC G

• 1280 Answers
• Posted on Sep 10, 2009

SOURCE: 2003 hyundai elantra gls abs/tcs light on

unless you can discover what DTC (Diagnostic Trouble Code) has been recorded/set in the control module, it's anyone's guess.

Testimonial: "thankyou"

SOURCE: heater quit working 2001 Hyundai Elantra. Checked

If the heater is blowing cold air, it could be your thermostat. They cost $20-50 at an auto parts store. Also, after the car has been ran for awhile does it come up and stay at normal operating temperature? Is your coolant level normal? If the car is high in mileage and the cooling system has never beeen flushed, it may just need flushed.

SOURCE: 2002 Hyundai Elantra GLS, headlights burn out constantly

Folks, I had this problem for years...it turned out that the voltage control module on the alterntor wasn't working correctly. It eventually led to a major problem with consistant operation of the vehicle. the dealer couldn't figure it out...it took a seasnoned mechanic to solve the problem. I haven't had a problem since I got the alternator replaced. Wear your gloves when you change them, yes, but don't discount your alternator.

SOURCE: 2003 Hyundai Elantra GLS. Check engine light, code PO133

Did you use a aftermarket O2 sensor or a genuine Hyundai one? If it's an aftermarket one it may be bad or not as good as the OEM one. See here for more details and other potential causes: P0133