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Chevrolet · Pickup Truck · 2015–2022 Custom Search

Chevrolet Colorado GMT31XX

Weaknesses, engine ratings and buying advice

★★★★★
4.5 / 5.0 · Based on 4 engine variants
Most Fun Engine

313–340 PS

3.6L V6 LGZ Benzin

3.6 V6 — the Colorado sweet spot

Fun to Drive!
Most Reliable Engine

196–203 PS

2.5L Ecotec I4 Benzin

1 weaknesses

Good Choice

Generations

Engine Overview

The Chevrolet Colorado GMT31XX is available with 4 engine variants — from 184 to 340 hp.

2.8L Duramax I4 Diesel · Diesel· 181 PS
2016 2022
Be Careful 6 weaknesses
Show all weaknesses →
2.5L Ecotec I4 · Petrol· 200 PS
2015 2022
Good Choice 1 Weakness
Show all weaknesses →
3.6L V6 LFX · Petrol· 304 PS
2015 2016
Good Choice 1 Weakness
Show all weaknesses →
3.6L V6 LGZ · Petrol· 308 PS
2017 2022
Good Choice 3 weaknesses
Show all weaknesses →

Vehicle Weaknesses

WeaknessCost
!8L45 Transmission Shudder (Torque Converter Clutch)

Torque converter clutch material contaminates fluid, causing shudder at light throttle. GM TSB 18-NA-355 calls for fluid flush. Class action filed covering 800k+ units.

Symptoms: Shudder at light throttle between 25-50 mph, feels like driving over rumble strips
from 60,000 km
Ad 8L45 torque converter Coloradotransmission fluid flush 8L45 TSB 18-NA-355
 High
!Transfer Case 4WD Engagement Failure

Transfer case actuator motor, wiring chafing, or control module prevent 4WD engagement. Service 4WD message common in cold weather. Check actuator wiring at frame crossmember first.

Symptoms: Service 4WD message, 4WD won't engage, blinking 4WD indicator
from 90,000 km
Ad transfer case actuator Colorado GMT31XX
 High
NHTSA Owner Complaints
Below average
1,857 complaints · 2015–2022
  1. 01 Steering
    867 ⚠ 13
  2. 02 Powertrain
    423 ⚠ 9
  3. 03 Electrical
    286 ⚠ 6
  4. 04 Engine
    178 ⚠ 1
  5. 05 Other
    178 ⚠ 5

Top Reported Issues

⚠ Steering (867 complaints)
⚠ Powertrain (423 complaints)
⚠ Electrical (286 complaints)
Source: NHTSA (nhtsa.gov) · 2026-04

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Known Problems and Issues +

A total of 18 weaknesses have been documented for the Chevrolet Colorado GMT31XX (2015–2022) — 11 engine-related and 7 vehicle-related. Typical issues affect Gearbox, Steering, Suspension, Body. Considered reliable: LFX (3.6L V6 LFX), LCV (2.5L Ecotec I4), LGZ (3.6L V6 LGZ).

Colorado (LWN, 2016–2022) — Be Careful: Fuel Injector Failure — Catastrophic (2016-2018), Timing Belt Replacement (Interference Engine), DPF Clogging / Excessive Regeneration. Power: 181 PS.

What to watch out for with the Chevrolet Colorado? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Chevrolet Colorado GMT31XX have? +
The Chevrolet Colorado GMT31XX has 11 known engine weaknesses and 7 vehicle weaknesses.
What should I look for when buying a used Chevrolet Colorado GMT31XX? +
faq.watch_a_solid
Which engine is recommended? +
Good choice: LFX (3.6L V6 LFX), LCV (2.5L Ecotec I4), LGZ (3.6L V6 LGZ). The most reliable engine is the LCV (2.5L Ecotec I4) with the lowest risk score. The most fun to drive is the LGZ (3.6L V6 LGZ).
Which Chevrolet Colorado GMT31XX engine is the most reliable? +
The {code} ({displacement}) is the most reliable engine in the Chevrolet Colorado GMT31XX. It has the lowest risk score of all available engines and is rated "Good Choice". However, there are 1 known weaknesses to be aware of.
Which Chevrolet Colorado GMT31XX engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Chevrolet Colorado GMT31XX — rated: "Fun to Drive!". {description} 308 hp, naturally aspirated, pairs with the 8L45 8-speed. No turbo lag, no diesel emissions headaches, enough power for a loaded bed and moderate towing. The 8L45 can shudder — a fluid flush (TSB 18-NA-355) fixes most cases. Carbon buildup on intake valves is the long-term concern. The volume engine for a reason.
Is the Chevrolet Colorado GMT31XX worth buying used? +
The Chevrolet Colorado GMT31XX is a good choice as a used car — 3 of 4 engine variants are rated 'Good Choice'.
What horsepower variants are available for the Chevrolet Colorado GMT31XX? +
The Chevrolet Colorado GMT31XX is available with engine variants from 184 to 340 hp. Petrol: LFX (3.6L V6 LFX), LCV (2.5L Ecotec I4), LGZ (3.6L V6 LGZ). Diesel: LWN (2.8L Duramax I4 Diesel).

Last updated: February 2026 · All information without guarantee