The defect
ON CERTAIN VEHICLES, THE SEMI-TRAILER STOP LIGHTS MAY NOT ACTIVATE WHEN HAND CONTROL LEVER IS ACTIVATED.
The remedy
AFTER INSPECTING BRAKE LIGHT SYSTEM, A SWITCH WILL BE INSTALLED WHICH WILL ACTIVATE THE TRAILER STOP LIGHT WHEN THE HAND CONTROL VALVE IS USED, IF NECESSARY.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack MS300T | 1981 |
Components: EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack MS300T | 1981 | 0 | 4 |
Other exterior lighting recalls in 1981
6 of the 157 recall campaigns reported to NHTSA in 1981 concerned the exterior lighting; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 81V153000 29 Dec 1981 | MACK TRUCKS, INCORPORATED |
| 81V107000 15 Sept 1981 | FORD MOTOR COMPANY |
| 81V093000 5 Aug 1981 | CHRYSLER CORPORATION |
| 81V064000 26 May 1981 | TRANSPORTATION MFG. CORP. |
| 81V053000 20 Apr 1981 | PACCAR, INCORPORATED |
NHTSA recalls (public domain) · all recalls of 1981