NHTSA — Engine And Engine Cooling: Exhaust System Problems


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
39,500 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Cadillac CTS exhaust system problems

exhaust system problem

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2003 Cadillac CTS Owner Comments

problem #2

Sep 202010


  • 5,000 miles


Driving our 2003 Cts it will shut off without notice. It was put on a machine and nothing showed wrong since 2003. Eventually it shut off and would startup for 45 min (2010) the crank sensor was replaced and 2 weeks later it shut off again..

- North East, MD, USA

problem #1

Jun 012010


  • 74,000 miles
Purchased 2003 Cts used in 2007 with 54,000 miles. At 60,000 miles, the serpentine belt broke and destroyed engine in the middle of rush hour traffic. 30 days later coil went out and had to be towed again. Approximately 30 days after that the other coil went out and again vehicle was towed to the dealer for repairs. Currently the car is sitting in my driveway and will not start. Took to repair shop close to my house and they said the electrical system is too messed up to run a diagnostic on it. Prior to the vehicle dying in the driveway, the engine shut down in the middle of the road on two separate occasions. I lost steering and had to push it off the road. It is a dangerous and unreliable vehicle and should not be on the road. I contacted Cadillac but received no response. The car currently has only 74000 miles on it with a total of maybe 20000 added in three years of ownership mostly due to the car needing constant repairs. I cannot afford to make the payments and pay for repairs both at the same time. I do not trust the safety of this vehicle.

- Parkland, FL, USA

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