Recall 99V059000: 1999 AM General Hummer
- Report received
- Mar 23, 1999
- Manufacturer
- Am general corporation
- Potentially affected
- 186vehicles
- Model years
- 1999
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
Vehicle description: sport utility vehicles. The nuts used to attach the master cylinder to the hydroboost bolts were of the metric type rather than the required english type.
Possible consequence
A loose master cylinder condition can occur, causing longer than normal brake pedal travel during brake pedal applications.
Remedy
Dealers will replace the master cylinder-to-hydroboost mounting bolts and nuts.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 1999 AM General Hummer2 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.