2021 GMC Acadia other problems
The 2021 GMC Acadia has 20 other complaints filed with NHTSA — 9% of the year's total, and up sharply from the prior model year.
20
Other complaints
9%
Share of year
1
Crash-involved
0
Related recalls
Other complaints by year
What owners report
“The exhaust resonator failed only a few hundred miles after warranty (60,300) and not covered by dealer under warranty. It creates a noise and reduces power/performance, which could inherently create a safety concern. The vehicle was inspected by an independent service center. The following code…”
Common questions
How many other complaints does the 2021 GMC Acadia have?
NHTSA has 20 complaints about the 2021 GMC Acadia other — 9% of all complaints filed for that model year.
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.