Service bulletins for the 2015 Mack LR
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
178 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| FSB 386-009 | 2016-10-20. Service bulletin. ENGINE AND ENGINE COOLING. COOLANT LEVEL SENSOR, REPLACEMENT. THE COOLANT LEVEL SENSOR (PART NUMBER 21257608) ON SOME MACK CABOVER TRUCKS BUILT BETWEEN 10/04/2008 AND 02/20/2015 MAY FAIL INTERNALLY. FAILURE OF THE SENSOR CAN CAUSE THE MALFUNCTION INDICATOR LIGHT (MIL) TO ILLUMINATE AND CAN CAUSE AN UNPLANNED STOP IN CASES WHERE THE ENGINE PARAMETER "ENGINE SHUTDOWN WITH LOW COOLANT" IS ENABLED. |
|---|---|
| PI 0862 | 2016-10-18. Service bulletin. SUSPENSION. V-STAY ROD COVER, REPLACEMENT. SOME MACK CHU, CXU, GU, TD, LEU, MRU, AND LR TRUCKS BUILT FROM 03/19/2012 TO 08/30/2015 AND EQUIPPED WITH MRIDE SUSPENSIONS MAY INADVERTENTLY LOSE THE V-STAY ROD COVER (PART NUMBER 21896762) FROM THE V-STAY ROD. THE REPLACEMENT V-STAY ROD COVER WILL BE INSTALLED AND SECURED WITH A TACK WELD IN TWO PLACES (180 DEGREES APART). |
| SC0399 | 2016-08-16. Service bulletin. POWER TRAIN. MACK TRUCKS INC. HAS DETERMINED THE CAP NUT THAT RETAINS THE INTERAXLE DRIVESHAFT YOKE TO THE REAR AXLE INPUT SHAFT MAY BE SUBJECT TO PREMATURE LOOSENING ON CERTAIN CHU, CMH, CMM, CXU, GU, LEU, LR, MRU AND TD MODEL VEHICLES. THE POTENTIAL RISK IS THAT IF THE NUT COMES OFF, THE YOKE CAN SEPARATE FROM THE AXLE INPUT SHAFT AND CAUSE THE DRIVESHAFT TO DISCONNECT. IF THIS OCCURS, A DISCONNECTED DRIVESHAFT CAN DISABLE THE VEHICLE AND RESULT IN DEBRIS IN THE ROADWAY, WHICH INCREASES THE RISK OF A VEHICLE CRASH. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.