Q: Bad lighting coming from the low beams

asked by on

The headlight performance in my 2014 GMC Sierra is unacceptable. The lights are so dim that I drive where there are street lights before the sun goes down! This is making my truck way less useful and it is already driving me crazy at only 8,000 miles! This is a brand new truck! How do I fix this?

Your Body Control Module (BCM) controls the headlights on your truck. According to GMC your headlights meet all safety standards; however they have a technical service bulletin (TSB) that may pertain to your situation. The TSB number PIT5374 dated February 2015 states some customers in low light situations feel that the headlights are not bright enough. The TSB calls for the BCM to be reprogrammed to increase the voltage and brightness to the low and high beam headlights. Since you are still under basic warranty then take it to a dealer and request they check to see if your truck BCM can be reprogrammed under this TSB.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Bad lighting coming from the low beams

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Ocassional shifting problems

Hello there, a few different faults could cause the vehicle to shift poorly. The most common would be low transmission fluid level, a shift solenoid, transmission linkage damaged, or a transmission range sensor. Always the first thing checked in any...

Q: 2014 Madza CX-5 rear tires are almost completely bald, while front tires look new. I was rear ended on the highway back in July.

The rear tires are most likely getting worn too fast due the the rear alignment is out of specifications with excessive toe in or toe out due to the accident. Have alignment checked and also see if the suspension is...

Q: A/C fan blows, but no cold air

Hello. Unfortunately there is not a switch for the seasons on this vehicle. If it is not blowing cold then it is usually an issue with low refrigerant. The system gets low due to a leak and the compressor will...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...