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Fuel systemPart report

2005 Buick Lesabre Fuel system Problems

Complaints
5about this part
Share
6%of 77 total for the year
Median mileage
84,257miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2005 Buick Lesabre, 6% of the 77 complaints for this model year. Where a mileage was given, the median is 84,257 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Needles on fuel gauge goes all the way around and points vertical. Needle crashes into the thermometer needle that also points vertical. Does not correctly register fuel or temperature. I am depending on my odometer to guess at my fuel levels. This seems to have started after my loose gas cap alarm came on. I had cap replaced 2 times, light will not go off. This, of course makes the service vehicle soon light stay on.”

NHTSA complaint #10537113, filed 2013-08, 140,000 miles

“The first incident was around 40,000 miles. The gas gauge would not work, after filling it up the gauge would stick or the hand would drop down to the thermostat needle. Very erratic. Carried it to the dealer and naturally, everything appeared to be working. 52,000 miles and the gauge is dead - of course the warranty was out also. It was explained that I would have to replace the entire cluster of gauges and I could not afford that at the time. Car now has 79,000 miles, I have been using the odometer so I will know when I need gas. …”

NHTSA complaint #10405812, filed 2011-06, 40,000 miles

“The contact owns a 2005 Buick LeSabre. The contact stated that while driving at an undisclosed speed, the fuel gauge sensors failed to function as intended. The contact stated that the fuel gauge sensor failed to provide adequate information regarding the fuel level. The fuel warning light illuminated. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that on a separate occasion, there was an abnormal humming sound coming from the vehicle. …”

NHTSA complaint #11696076, filed 2025-10, 92,647 miles

“The contact owns a 2005 Buick Lesabre. The contact stated the fuel gauge would inaccurately show that the fuel tank was full at all times. After he would refuel, the fuel gauge would not move. The manufacturer was contacted who referred the contact to a local dealer for repairs. The vehicle was not repaired. The failure mileage was 75,867. Updated 06/17/11 updated 06/27/11”

NHTSA complaint #10399203, filed 2011-05, 75,867 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
200556%
2004138%
200364%
2002114%
2001175%
2000609%
19992813%
19987619%
19974010%
199677%
199553%
199432%
199353%
1992105%
1991310%
1990613%
1989415%
198738%

Other parts of the 2005 Buick Lesabre

Electrical system
25 complaints
Brakes
9 complaints
Transmission and drivetrain
8 complaints
Air bags
5 complaints
Engine
5 complaints
Suspension
5 complaints
Tires
5 complaints
Exterior lighting
4 complaints
Other or unknown
4 complaints
Steering
4 complaints
Vehicle speed control
4 complaints
Seat belts
3 complaints

← All problems reported for the 2005 Buick Lesabre

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology