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SuspensionPart report

1999 Pontiac Grand Prix Suspension Problems

Complaints
10about this part
Share
2%of 412 total for the year
Median mileage
101,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the suspension of the 1999 Pontiac Grand Prix, 2% of the 412 complaints for this model year. Where a mileage was given, the median is 101,000 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.

“While making a turn, heard loud clunking noise. Took car to mechanic, discovered outer end of sway bar on passenger side broke clean through, just before bolt. Car only had 45,500 miles.”

NHTSA complaint #10200512, filed 2007-08, 45,000 miles

“Front driver side noise coming from suspension. Took car to midas, problem found left front sway bar mount had broken and was no longer attached to the frame. Replaced front sway bar, cost $400 parts and labor.”

NHTSA complaint #10126102, filed 2005-06, 121,000 miles

“Right rear spring broke. No load in vehicle and no rust on spring. Started rattling, first week in june, thought it was the stabilizer links which had been replaced on the front about one year ago. The rattle was the bottom coil of the spring. It could have the tire, so I installed the compact spare to allow more clearance. Took the car to pepboys where the front links and alignment was done last fall. They estimated the repair at over $600.00 to include both rear springs. Maybe all the springs are bad, but your data base does not show and information regarding this problem. …”

NHTSA complaint #10274622, filed 2009-06, 152,000 miles

“Dt: the contact stated while attempting to make a turn there was a popping noise that came from underneath the vehicle. He pulled the vehicle into garage and inspected underneath the vehicle. He discovered the sway bar broke. He contacted the manufacturer, and they offered no assistance in the repair of the vehicle. The contact took the vehicle to a dealer. The service mechanic determined the sway bar broke because it was hollow, the previous design on earlier models was solid. No repairs have been made due to the excessive cost. Updated 01/05/06.”

NHTSA complaint #10144462, filed 2005-12, 101,000 miles

“On april 30, 2012, I took my car to be inspected and I was told the sway bar was cracked and needed replaced. After calling many junk yards to look for a used one, I am finding out that this is a common problem among these vehicles. I have called just about every junk yard within 30 miles of me and constantly am told we have quite a few but they are all cracked on the passenger side which is where mine is cracked. Seeing that this is part is used not only on the grand prixs but other GM passenger cars and mini vans, I feel that since this is a safety issue, it needs recalled.”

NHTSA complaint #10459576, filed 2012-05

Related service bulletins

Suspension: other model years

YearComplaintsShare of year
200811%
200721%
2006104%
200532%
2004153%
200333%
2002124%
200172%
2000163%
1999102%
1998133%
1997263%
199623%
199542%
199431%
199332%
199233%
199142%
1990137%
198964%
198867%

Other parts of the 1999 Pontiac Grand Prix

Engine cooling
152 complaints
Steering
58 complaints
Engine
50 complaints
Electrical system
47 complaints
Visibility (wipers, defrost, mirrors)
31 complaints
Transmission and drivetrain
24 complaints
Fuel system
21 complaints
Brakes
19 complaints
Air bags
14 complaints
Equipment
13 complaints
Wheels
10 complaints
Other or unknown
9 complaints

← All problems reported for the 1999 Pontiac Grand Prix

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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