RoadVitals

1999 Cobra Sierra Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
1
Latest Oct 6, 1999
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
0
Reports on file since Oct 6, 1999

What this page shows

Our database holds 1 NHTSA owner-reported complaint for the 1999 Cobra Sierra. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–1 of 1

Brakes
Filed Oct 6, 1999
Crash reported

AFTER ~20 MILES OF STOP-AND-GO DRIVING, BRAKED AT ~40 MPH TO SLOW/STOP FOR TRAFFIC 5- TO 6 CAR-LENGTHS AHEAD. BRAKE PEDAL SANK TO FLOOR WITH LITTLE RESISTANCE, NO SLOWING OF VEHICLE. DURING BODY REPAIRS, SHOP EMPLOYEE NOTED "SPONGY" BRAKE PEDAL FEEL, `INEFFECTIVE DURING HARD BRAKING'. TRUCK TRANSFERRED TO MECHANIC, WHO FOUND BRAKE MASTER CYLINDER LEAKING FROM REAR SEAL & RESERVOIR GASKETS - AND ALSO FOUND ALL FRONT PADS WORN `TO THE POINT OF NEEDING REPLACEMENT'. SELLING GM DEALER REPLACED PADS BUT DENIED M/C LEAKAGE, BUT SECOND DEALER (DUTTON GMC IN RIVERSIDE, CA) CONFIRMED LEAKAGE AND REPLACED M/C UNDER WARRANTY. 2,100 MILES LATER, ON 10/4/99, NOTED FRESH FLUID LEAKAGE AT REAR OF M/C; WHEN CAP REMOVED, NEW FLUID HAD TURNED VERY DARK; WHEN REPLACING CAP, NOTED FLUID "SQUISHING" FROM ROUND SEALS BETWEEN RESERVOIR AND M/C BORE.

NHTSA ID
712914
Incident
Jul 8, 1999

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .