2002 Chevrolet Z71: Reliability Data

Source: NHTSA — 29 complaints
29
Total Complaints
34,711mi
Median Mileage
PARKING BRAKE
Top Issue
3
Crash Reports

When Do Complaints Happen?

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

26,904 25th Percentile
34,711 Median Mileage
61,624 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

PARKING BRAKE
6
AIR BAGS:FRONTAL
3
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
2
VEHICLE SPEED CONTROL:CRUISE CONTROL
1
SUSPENSION
1
AIR BAGS
1
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
1
POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
1
POWER TRAIN:MANUAL TRANSMISSION
1
POWER TRAIN:DRIVELINE:DRIVESHAFT
1

Severity Assessment

3
Crashes
0
Fires
5
Injuries
0
Deaths

Sample Complaint Reports

"WHEN VEHICLE IS IN IDLE/ PARK OR AT A COMPLETE STOP VEHICLE HAS A ROUGH IDLE.*AK"
"WHILE DRIVING ENTIRE VEHICLE SHAKES. *AK"
"CONSUMER STATES OF HAVING PROBLEMS WITH THE BRAKE PADS. MR"

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

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

PARKING BRAKE 6 complaints
25th: 45,000 mi Median: 49,000 mi 75th: 75,498 mi

Where Are Complaints Coming From?

Top states by complaint count.

TX: 5 GA: 4 MN: 3 CA: 3 MI: 3 OK: 2 LA: 2 FL: 2 KS: 1 OH: 1

Who Files Complaints?

41.4%
Original Owners
58.6%
Second+ Owners

Chevrolet Z71 — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
1998524

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