[twanlo456]

The passenger side headlamp is out on My 2014 XTS. The daytime running lights when out first and now the actual headlamp is done as well. The parking lights still works though. Does the headlamp bulb ignite the daytime light strip also or does it sound like I need the entire headlight assembly? Hoping it’s just a bulb. Has anyone experienced this that can provide any tips? Thanks in advance for any and all replies!!!

 

[GFK]

I replaced my bulb awhile back. As I recall, I paid about $125 for the bulb (GMDirectParts). Then, I paid the dealership to install it. I think it may have been around $75. Being, I did not want to void the 1 year warranty through GM. Next time, I may try it myself.

My Acadia has a similar setup. I bought the bulb at Wal-Mart ($30 I think), and was able to install it. I removed the wheel well. The dealership stated that the process included removing the bumper. I guess backyard mechanics are being put out of a job.

 

[twanlo456]

Was your complete headlight out? (Circular headlight/daytime running light strip). Or just the actual circular headlight bulb? The dealership hasn’t checked it yet but they’re quoting $299 for a bulb, $1300 for a headlight assembly! I guess I’m trying to figure out if the bulb ignites the actual headlamp and daytime running lights....

 

[genoliver]

plenty of ways to change yourself on youtube without removing the bumper

 

[twanlo456]

Very true, great vids on YouTube! Does that singular bulb they show ignite the headlamp and strip of daytime running lights beside the actual headlamp? I’ve watched the vids, but you never see them turn the lights on. My dealer is telling me if the daytime lights are out (the strip of lights) and the circular headlamp, I’ll need to change the entire assembly.

 

[ccclarke]

The headlights and DRLs are separate circuits - the headlights do not light up the DRLs. (The DRLs can be on during the day with the headlights off.)

The DRLs illuminate continuously during the following conditions:

• The ignition is in the RUN or CRANK position
• The shift lever is out of the PARK position for vehicles equipped with automatic transmissions or the parking brake is released for vehicles with manual transmissions
• The Low and High-beam headlamps are OFF

If both are dead, the entire headlamp assembly is suspect after the voltage supply to the assembly is verified. Your dealer can check the ballast status with their diagnostic tools.

Typically, a failing headlight may change color, turn on and off as the ballast keeps re-striking, or just fail outright.

CCC

 

[GFK]

I had both my headlight bulbs fail. The driver's side under warranty, and the passenger's side was not. One was out. The other was a pale blue. There are some videos that show how the bulb could be replaced. I just did not want to take a change on damaging a $120 some odd bulb and have to buy another one. Hopefully, the price of the bulb will go down as the vehicle gets older.

 

[92873]

I had left side headlight replaced. DRLight on that side was out too....turned out to be the plug into the DRL Shorted out the bulb (don't ask why, I know why plug was bad, ooops). Had wire replaced and DRL work fine now.

 

[twanlo456]

I was hoping to change the bulb and/or ballast to resolve it. The dealership of course was suggesting an assembly replacement for $1300, without even checking the car.