Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


fairly significant
Typical Repair Cost:
No data
Average Mileage:
73,333 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (2 reports)
  2. catalytic converter replaced (1 reports)
2003 Buick LeSabre engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2003 Buick LeSabre:

Unsubscribe any time. We don't sell/share your email.

2003 Buick LeSabre Owner Comments

problem #3

Jan 192011

LeSabre V6

  • Automatic transmission
  • 156,000 miles


The check engine light came on again and every time it does the garage says it's the catalytic converter . If that is what they say it is again, that will be the 4th time in 4 years that has happened. The last time we made sure we got a GMC one because they said that would last but obviously they were wrong. It has been less than 6 months since it was replaced.

- , Donalsonville, GA, USA

problem #2

Jan 012006

LeSabre Custom 3.8L

  • Automatic transmission
  • 25,000 miles

Just want to know what other parts have been changed to stop the engine light to come on due to oil consumption leak

- , Lafayette, LA, USA

problem #1

Mar 232005

(reported on)

LeSabre Custom

  • 39,000 miles

need to find out what causes this problem and get it fixed!!!! Anyone have this problem with their LeSabre?

- , Rosburg, Wa., USA

Not what you are looking for?