Front and Rear Light Bulbs may Fail Prematurely on Cadillac CTS

The front and rear light bulbs are prone to premature failure. Our technicians tell us that the front bulbs can be very difficult to replace.

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Average mileage: 83,909 (40,999–178,000)
9 model years affected: 2003, 2004, 2005, 2006, more2007, 2008, 2009, 2010, 2012
32 people reported this problem
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Viewing 1 - 14 of 14 problem details
2006 Cadillac CTS 73,000 mi,
changed out LH brake light 3 times and RH brk lt 2 tms in 4 yrs. Possible wiring issue?
2005 Cadillac CTS 50,000 mi,
the front right turn signal will fail for a week work the next week then fail again for god knows how long.
DRL failed. Cost nearly $100 in labor to replace due to design -- front bumper has to be be partially removed.
2006 Cadillac CTS 178,000 mi,
neither brake lights or headlights work, car is in repair now cost over $500
One of the front headlights is very weak.
2004 Cadillac CTS 102,000 mi,
Driver's side rear light melted into light socket. Picked up a replacement at AutoZone for $34. Now passenger turn signal light has gone out. The top of each head light cover is discolored, it looks like a heat related effect on the top of each sealed plastic cover.
Had to replace mine. I went to a auto parts store and bought mine, and had them replaced for about $400-$500 for both. At the dealer one headlight bulb is $500 each. To replace them the front bumper has to come off no other way to get to the front headlights.
2012 Cadillac CTS 40,999 mi,
Front timing cover seal leaking, valve cover gaskets leaking, driver seat track broken/loose, passenger vent rattling/broken.
Front passenger Running light went out. Bought the replacement bulb (#5201) and followed video how to access and remove head light unit;so far so good. But when I went to remove old bulb & replace new bulb was another story! Seems impossible to get it to clip/plug in without doing damage! Is there a special way or tool needed to get it to clip in? Still trying to figure this one out! I noticed it was every weak a couple of days before it failed.
All my front bulbs, except for one recently went out at the same time.
2003 Cadillac CTS 65,000 mi,
Front headlight went out. Replaced both, one week later left one out again. Then right blinker went out. Replaced it worked for 2 days. Now break lights is out!!
2005 Cadillac CTS 105,768 mi,
Replaced rear passenger bulb. No big deal. Looked like socket had been hot. Works fine now.
2005 Cadillac CTS 60,000 mi,
Rear driver side brake light has gone out approximately 4 times in 2 1/2 years.
rear bulbs have gone a few times and only had the car for 1 year.