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1984 GMC B6P042 Recalls, Complaints & Specs

3 safety recalls list the 1984 GMC B6P042. Check your own VIN below.

3
safety recalls
0
owner complaints to NHTSA

3 safety recalls for the 1984 GMC B6P042

Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.

  1. Chamber (service brakes)

    NHTSA 87V121000 Reported 7,870 vehicles potentially affected GENERAL MOTORS CORP.

    Severe brake chatter may cause the brake chamber mounting brackets on either side to develop cracks in the weld area where the s cam shaft tube attaches to the chamber support section.

    Remedy: As necessary, install new reinforced front brake chamber mounting brackets and install a front brake limiting valve on vehicles without one.

  2. Fluid (service brakes)

    NHTSA 86V086000 Reported 4,299 vehicles potentially affected GENERAL MOTORS CORP.

    Severe brake chatter may cause the brake chamber mounting brackets on either side to develop cracks in the weld area where the s-cam shaft tube attaches to the chamber support section. Consequence of defect: brackets can break, resulting in loss of braking ability at the front wheel, and possibly restrict steering, which could lead to a…

    Remedy: As necessary, replace front brake chamber mounting brackets and install a front brake limiting valve.

  3. Hydraulic (service brakes)

    NHTSA 84V134000 Reported 1,436 vehicles potentially affected GENERAL MOTORS CORP.

    Vehicles have a primary and a reserve braking system. If the primary brake system booster fails, under some circumstances the reserve system may also malfunction and braking ability will be impaired.

    Remedy: Dealer will install a new reserve brake control module at no cost to owner.

No owner complaints on file

NHTSA has no owner complaints on file for the 1984 GMC B6P042. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.

Compare GMC B6P042 model years

Recall and complaint counts for every GMC B6P042 model year in NHTSA's database.

Model yearRecallsComplaints
1982 GMC B6P04210
1983 GMC B6P04230
1984 GMC B6P04230
1985 GMC B6P04220
1986 GMC B6P04230
1987 GMC B6P04230
1988 GMC B6P04220
1989 GMC B6P04210
1990 GMC B6P04210

Checking a specific 1984 GMC B6P042

How do I know if my 1984 GMC B6P042 has an open recall?

Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 3 campaigns currently list the 1984 GMC B6P042; your car may already have been repaired under some of them.

Is the recall repair free?

Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised GMC dealer with your VIN and the NHTSA campaign number (for example 84V134000).

What is the difference between a recall and a complaint?

A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.

Other GMC models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.