Buyer Research

2018 Chevrolet Colorado ZR2 — Should You Buy One?

Typical asking price: $26,000–$36,000. This is one of the more reliable vehicles in its class — here's what to watch for anyway.

Kestrel Take

A genuinely serious off-road midsize — the ZR2's front and rear locking diffs, trick Multimatic DSSV dampers, and wider track make it a Raptor-lite for the trail. That capability means many were wheeled hard, so inspect closely. Verify the 8-speed fluid service and, on diesels, emissions upkeep. A clean, un-abused ZR2 is a hugely capable and desirable truck that holds value well.

What we checked

Partly reconciled against public records, 2026-09-11

NHTSA holds 182 owner complaints for the 2018 Chevrolet Colorado ZR2, across 1 recall campaign.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 43% of them are about one thing — the transmission and drivetrain. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

One recall campaign covers this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Not written up yet: electrics and electronics (35 complaints). That group is in the public record and is not covered by the issues below. Treat it as something to ask about, not as absent.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2018 Chevrolet Colorado ZR2

Ranked by wallet impact. These are documented, recurring problems — not freak accidents.

Off-road abuseMedium

ZR2s get wheeled hard; inspect skid plates, underbody, dampers, and suspension for damage, and check for prior repairs.

Repair cost: Not yet priced

Source: not yet checked against public records.

8-speed transmission shudder (V6/diesel)Medium

Low-speed shudder tied to fluid; a flush/update addresses it. Test-drive around 30-50 mph.

Repair cost (estimate): $200-$600

Source: NHTSA complaints filed under the transmission and drivetrain (78).

DSSV damper wear/costMedium

The Multimatic dampers are excellent but pricey to replace if worn or damaged.

Repair cost (estimate): $400-$1,500

Source: not yet checked against public records.

Diesel emissions upkeep (if diesel)Medium

The 2.8L Duramax needs emissions maintenance; verify history.

Repair cost (estimate): $300-$2,000 if neglected

Source: NHTSA complaints filed under the engine (23).

Walk-Away Red Flags

✗Hard-wheeled with damaged underbody/dampers
✗Transmission shudder, no fluid service
✗Bent skid plates / suspension
✗Diesel emissions faults

Good Signs

✓Clean underbody, healthy DSSV dampers
✓Fluid serviced, smooth shifts
✓Documented service, honest trail history

Found a specific Chevrolet Colorado ZR2?

This page covers what goes wrong on the 2018 Chevrolet Colorado ZR2 in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.

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Not ready to pay for one? The free read is instant and needs no card — it checks the asking price against the market and names the top issues for this year. It stops short of the verdict, because that needs the photos.

Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.