VehicleVerdict

1977 GMC P20 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 0 complaints on file for the 1977 GMC P20 — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.

0

NHTSA complaints

1

Recalls

0

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 1977 compare to other P20 years?

P20 NHTSA complaints by model year, 1977 highlighted1 complaints1975: 0 complaints1976: 0 complaints1977: 0 complaints1982: 0 complaints
P20 NHTSA complaints by model year, 1977 highlighted. Red bars are years to avoid.

See all P20 years to avoid →

Does the 1977 GMC P20 have recalls?

1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.

77V216000SeatsDecember 14, 1977 · 351 units

Defect

THE INVOLVED VEHICLES FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 207, "ANCHORAGE OF SEATS", DUE TO POSSIBLE FAILURE OF THE SEAT POST ATTACHMENT AT THE FLOOR IN THE EVENT OF AN ACCIDENT. THESE VEHICLES HAVE OVERSIZED BOLT HOLES IN THE FLOOR PAN WHICH MAY ALLOW THE SEAT ATTACHING NUTS TO PASS THROUGH THEM AND THUS TIGHTEN AGAINST THE BOTTOM OF THE SEAT BASE INSTEAD OF THE LONGITUDINAL SILL.

Remedy

DEALER WILL INSTALL A STEEL REINFORCEMENT PLATE ON THE BOTTOM SURFACE OF THE LONGITUDINAL SILL, AT NO COST TO OWNER.

1977 GMC P20 — common questions

Is the 1977 GMC P20 reliable?

The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.

Does the 1977 GMC P20 have recalls?

Yes — NHTSA lists 1 recall campaign affecting the 1977 GMC P20. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.