What is the worst year for a Buick Terraza?

The 2005 Buick Terraza has the worst FaultScore of any year of this model, with 195 complaints filed with NHTSA, most of them about the electrical system.

What is the best year for a Buick Terraza?

The 2007 Buick Terraza has the cleanest record of the graded years, with 51 complaints on file.

What breaks most often on a Buick Terraza?

Electrical System accounts for more complaints than any other part on the Buick Terraza.

Worst years for a Buick Terraza

Owners have filed 341 complaints about the Buick Terraza with NHTSA across model years 2005 to 2007. More of them are about the electrical system than anything else.

Avoid

2005 Buick Terraza

195 complaints — the highest FaultScore of any year, mostly electrical system.

Cleanest on record

2007 Buick Terraza

51 complaints — the lowest FaultScore of the graded years.

Every Buick Terraza year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

195 95 51

05 06 07

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

Year	Grade	Complaints	Crashes	Fires	Median miles	Most reported
2007	B	51	0	0	42,283	Body & Structure
2006	C	95	5	0	42,000	Brakes
2005	D	195	13	4	56,158	Electrical System

What breaks on a Buick Terraza

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Electrical System 58 17.0%

Worst in 2005

Stability & Traction Control 56 16.4%

Worst in 2005

Brakes 42 12.3%

Worst in 2005

Body & Structure 37 10.9%

Worst in 2005

Doors, Latches & Locks 29 8.5%

Worst in 2005

Suspension 25 7.3%

Worst in 2005

Steering 21 6.2%

Worst in 2005

Engine & Cooling 13 3.8%

Worst in 2005

Transmission & Drivetrain 10 2.9%

Worst in 2005

Airbags 9 2.6%

Worst in 2005

Lights 7 2.1%

Worst in 2005

Acceleration & Cruise Control 6 1.8%

Worst in 2006

Fuel & Propulsion 5 1.5%

Worst in 2007

Equipment & Accessories 5 1.5%

Worst in 2006

Exactly what failed on a Buick Terraza

The named sub-assemblies behind those complaints, across every model year.

Door 22 26.2%

Latch 14 16.7%

Horn 11 13.1%

Body 9 10.7%

Automatic (Asc) 8 9.5%

Rear 5 6.0%

Antilock/Traction Control/Electronic Limited Slip 5 6.0%

Automatic Transmission 4 4.8%

Rotor 3 3.6%

Front 3 3.6%

Complaints filed over time

Every complaint about every Buick Terraza, by the month it reached NHTSA.

Jan 2005 peak 11 Feb 2026

Compare the Buick Terraza

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.

Buick Terraza vs Lexus RX300 Buick Terraza vs KIA EV6 Buick Terraza vs Ford Mustang GT Buick Terraza vs Chrysler Lebaron Buick Terraza vs Pontiac Aztek Buick Terraza vs Infiniti QX60