Verdict · NHTSA data
Limited data — recalls on file
NHTSA has just 0 complaints on file for the 1999 Mack Cx — too few to judge reliability from owner reports alone — but 7 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.
0
NHTSA complaints
7
Recalls
1
Investigations
0
Crash-involved
0
Fires reported
0
Injuries
0
Deaths
—
NCAP overall
7 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.
Defect
MACK IS RECALLING 34,269 MY 1999-2005 CX AND MY 2004-2008 CXN TRUCKS. THE HEADLIGHT SWITCH MAY PREMATURELY FAIL RESULTING IN INOPERATIVE OR INTERMITTENT HEADLIGHTS.
Consequence
THE HEAD LIGHTS MAY NOT OPERATE PROPERLY WHICH COULD RESULT IN INTERMITTENT OR NO HEADLIGHT FUNCTION. THIS COULD IMPAIR A DRIVER'S VISIBILITY, INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL REPLACE THE HEADLIGHT SWITCH. THE RECALL BEGAN ON FEBRUARY 27, 2009. OWNERS MAY CONTACT MACK AT 1-800-528-6586.
Defect
ON CERTAIN HEAVYTRUCKS EQUIPPED WITH TRUCK HUB UNITS MANUFACTURED BY SKF EXCLUSIVELY FOR USE ON ARVINMERITOR'S FF98X SERIES NON-DRIVE STEER AXLES, THE HUB UNIT BEARINGS CAN WEAR PREMATURELY.
Consequence
SEIZURE OF THE BEARINGS CAN CAUSE WHEEL SEPARATION OR WHEEL END FIRE.
Remedy
DEALERS WILL REPLACE ALL FRONT AXLE HUBS. OWNER NOTIFICATION BEGAN ON OACTOBER 14, 2003. CUSTOMERS WILL BE INFORMED OF PARTS AVAILABILITY BY OCTOBER 3, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 610-709-3337.
Defect
ON SOME HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH ARVINMERITOR AXLE ASSEMBLIES WHICH MAY HAVE BEEN MANUFACTURED WITH TRW MODEL 20EDL BALL SOCKETS, THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW SPECIFICATION CASE DEPTH AND/OR HARDNESS WHICH CAN LEAD TO PREMATURE WEAR OUT OF THE SOCKET IN SOME APPLICATIONS.
Consequence
IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE STEERING CONTROL, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy
DEALERS WILL REPLACE THE BALL SOCKET ASSEMBLIES. THIS CAMPAIGN WILL SUPERSEDE NHTSA RECALL NOS. 01V-140-005 (MACK SC0270) AND 00V-246-103 (MACK SC0262). OWNER NOTIFICATION BEGAN DECEMBER 27, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 610-709-3337.
Defect
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH DRAG LINK ASSEMBLIES CONTAINING 24-DL MODEL BALL SOCKETS AND MANUFACTURED BY TRW. CERTAIN OF THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW-SPECIFICATION CASE DEPTH AND/OR HARDNESS, WHICH CAN LEAD TO PREMATURE WEAR OF THE SOCKET.
Consequence
IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE PARTIAL CONTROL OF THE RIGHT FRONT WHEEL, POSSIBLY RESULTING IN A CRASH.
Remedy
DEALERS WILL REPLACE THE DEFECTIVE DRAG LINKS. OWNER/DISTRIBUTOR NOTIFICATION BEGAN AUGUST 30, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011 OR TRW CUSTOMER SERVICE AT 1-866-280-3287.
Defect
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH TRW TIE ROD ENDS ON CERTAIN MERITOR AXLES. THE TIE ROD AND DRAG LINK BALL STUD ENDS CONTAIN BEARINGS THAT ARE BELOW THE SPECIFIED CASE DEPTH AND/OR HARDNESS.
Consequence
THIS CAN LEAD TO PREMATURE WEAR WITH POSSIBLE SEPARATION OF THE BALL STUD FROM THE SOCKET, INCREASING THE RISK OF LOSS OF CONTROL OF THE VEHICLE.
Remedy
DEALERS WILL REMOVE AND REPLACE ALL AFFECTED TIE RODS AND DRAG LINKS WITH DIFFERENT DESIGNED ENDS.
Defect
VEHICLE DESCRIPTION: CLASS 8 TRUCKS EQUIPPED WITH FELSTED ELECTRONIC ACCELERATOR PEDALS. THE RETURN SPRINGS CAN BREAK ON THE ACCELERATOR PEDALS THAT ARE EQUIPPED WITH STAINLESS STEEL OR ELECTROPLATED WIRE RETURN SPRINGS.
Consequence
THIS CONDITION COULD CAUSE THE PEDAL TO GO TO FULL THROTTLE IF BOTH RETURN SPRINGS BREAK, INCREASING THE RISK OF A CRASH.
Remedy
REPLACEMENT ACCELERATOR PEDALS EQUIPPED WITH RETURN SPRINGS MANUFACTURED OF MUSIC WIRE WITH ONE ADDITIONAL COIL ON EACH SPRING AND WITH AN ORGANIC COATING, ELIMINATING ELECTROPLATING WILL BE INSTALLED.
Defect
VEHICLE DESCRIPTION: CERTAIN HEAVY DUTY TRUCKS FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE HEADLAMP ASSEMBLIES HAVE THE BULB IDENTIFICATION FOR THE LOW AND HIGH BEAM REVERSED ON THE FRONT LENS.
Consequence
THE HEADLIGHT ASSEMBLIES DO NOT MEET THE REQUIREMENTS OF THE STANDARD.
Remedy
OWNERS WILL BE PROVIDED WITH A CORRECT LABEL, ALONG WITH INSTALLATION INSTRUCTIONS.
The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 7 recalls should be verified as completed.
Yes — NHTSA lists 7 recall campaigns affecting the 1999 Mack Cx. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.
NHTSA opened one investigation into this model year; all are now closed.
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.