1999 Oldsmobile Alero: Reliability Data

Source: NHTSA — 702 complaints
702
Total Complaints
63,580mi
Median Mileage
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
Top Issue
20
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

46,000 25th Percentile
63,580 Median Mileage
85,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
45
ELECTRICAL SYSTEM
38
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
32
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
29
ENGINE AND ENGINE COOLING
24
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC
24
ENGINE AND ENGINE COOLING:COOLING SYSTEM
16
ENGINE AND ENGINE COOLING:ENGINE
14
EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH
14
EXTERIOR LIGHTING:TURN SIGNAL
13

Severity Assessment

20
Crashes
12
Fires
18
Injuries
3
Deaths

Sample Complaint Reports

"RIGHT FRONT SEAT LATCH DOES NOT LOCK IMMEDIATELY WHEN MOVED."
"POSSIBLE ELECTRICAL FAILURE RESULTED IN INSTRUMENT PANEL AND OTHER COMPONENTS TO FAIL. NM"
"VEHICLE GETS WET FROM WATER LEAKS THAT COME FROM WINDSHIELD WHICH CAUSE ELECTRICAL EQUIPMENT PROBLEMS . DEALER HAS BEEN CONTACTED. PLEASE PROVIDE FURTHER INFORMATION. *AK"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28